CN117585521A - A carbon fiber dual-station twin-spindle winding machine and its yarn cutting control method - Google Patents

Abstract

The invention relates to the technical field of carbon fiber winding, in particular to a carbon fiber double-station double-spindle winding machine and a yarn cutting control method thereof, wherein yarns are sequentially wound to a winding drum on a winding shaft through a yarn discharging mechanism and a compression roller mechanism, the winding mechanism is matched with the yarn discharging mechanism to realize uniform winding of the yarns along the axial direction of the winding drum, when the yarns on the winding drum are wound to a full winding state, a first power device drives a turntable to rotate, so that the full winding drum is far away from a yarn guide frame, an empty winding drum is close to the yarn guide frame, the yarns start to be wound on the empty winding drum, the winding operation is completed, and the yarns between the two winding shafts are cut through the yarn cutting mechanism when the next empty winding drum starts to be carried out, so that automatic blanking operation of the full winding drum is facilitated; the second cylinder in the yarn cutting mechanism drives the cutter on the swing arm to cut yarn through the transmission component, and automatic yarn cutting operation is realized in the continuous winding process through automatic reel change, so that winding efficiency is improved.

Description

A carbon fiber dual-station dual-spindle winding machine and its yarn cutting control method

Technical field

The invention relates to the technical field of carbon fiber winding, and in particular to a carbon fiber dual-station twin-spindle winding machine and its yarn cutting control method.

Background technique

During the winding process of the yarn on the drum, the yarn is led out along the axial direction of the winding shaft through the yarn arrangement mechanism, and the pressure roller is used to make the yarn evenly wound on the drum; the winding shaft is provided with two opposite sides on the turntable. After the reel on any one of the rewinding reels is rewinded to a full roll state, the reel is changed to move the empty reel on the other rewinding reel to the rewinding station to start rewinding, ensuring the automation and continuity of the rewinding machine. Winding. The same creel of the yarn arrangement mechanism always exports one yarn. After changing the reel and switching the reel for winding, it is necessary to manually cut the thread and then unload the full reel. The traditional automatic thread cutting mechanism cannot satisfy the continuous winding equipment. requirements for automated precision control.

Contents of the invention

The invention provides a carbon fiber dual-station twin-spindle winding machine and its yarn cutting control method, which can effectively solve the problems in the background technology.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

A carbon fiber double-station twin-spindle winding machine, including a vertical plate and a winding mechanism, a yarn arrangement mechanism, a pressure roller mechanism and a yarn cutting mechanism installed on the vertical plate. The yarn arrangement mechanism, the pressure roller mechanism and the yarn cutting mechanism are The yarn cutting mechanism is sequentially arranged on the horizontal side of the winding mechanism along the vertical direction;

The rewinding mechanism includes a turntable and a rewinding shaft arranged on it. A reel is set on the rewinding shaft. The turntable and the rewinding shaft are driven to rotate by a first power device and a second power device respectively. Two of the winding reels are arranged opposite to each other on the turntable;

The yarn arrangement mechanism includes a support slide and a yarn guide slidably connected to it. The support slide is arranged parallel to the winding shaft. The yarn guide is driven by a reciprocating screw rod to move along the length direction of the support slide. ;

The pressure roller mechanism includes a lower pressure roller arranged parallel to the winding shaft. The lower pressure roller is arranged at one end of the swing frame and is driven by a first cylinder to press against the surface of the drum;

The yarn cutting mechanism includes a swing arm and a cutting knife arranged at one end thereof. The end of the swing arm away from the cutting knife is rotationally connected to the mounting vertical plate and is driven to rotate by a second cylinder through a transmission assembly.

Further, the swing arm is rotationally connected to the mounting vertical plate through a first drive shaft provided at its end. The transmission assembly includes intermeshing gears and tooth sectors, and the tooth sectors are connected through a first drive shaft provided at its rotation center. The second drive shaft at the position is rotationally connected to the mounting vertical plate;

The gear is sleeved on the first drive shaft and rotates coaxially with it. The second drive shaft is connected to the second cylinder through a first connecting rod. One end of the first connecting rod is connected to the second cylinder. The two drive shafts are fixedly connected, and the other end is rotationally connected with the second cylinder output shaft.

Further, the reciprocating screw rod is arranged on the mounting base and is rotationally connected with it, and a chute is provided on the mounting base corresponding to the reciprocating screw rod;

The reciprocating screw rod is connected to the yarn guide frame through a transmission rod fixed on the sliding tongue. The sliding tongue is slidingly connected to the slide groove and meshes with the thread groove on the reciprocating screw rod.

Further, the reciprocating screw rod and the transmission rod are both arranged parallel to the winding shaft, and both ends of the transmission rod are fixedly connected to the yarn guide frame and the sliding tongue respectively.

Further, the two turntables are arranged oppositely on both sides of the rotation center of the turntable, and two yarn guide rods are symmetrically arranged between the two winding shafts, and the distance between the winding shaft and the yarn guide rod is 90 degrees. °Angle setting.

Further, the swing frame includes a rotating rod and a support rod arranged parallel to the rewinding shaft, and are fixedly connected through connection seats provided at both ends thereof;

The rotating rod is rotationally connected to the mounting vertical plate, the lower pressure roller is sleeved on the support rod, the first cylinder is connected to the rotating rod through a second connecting rod, and the second connecting rod One end is fixedly connected to the rotating rod, and the other end is rotationally connected to the output shaft of the first cylinder.

A yarn cutting control method of a carbon fiber dual-station twin-spindle winding machine, using the above-mentioned carbon fiber dual-station twin-spindle winding machine, includes the following steps:

The yarn is wound sequentially through the yarn arrangement mechanism and the pressure roller mechanism to the drum on the winding shaft, and the pressure roller driven by the first cylinder presses the yarn exported from the swing frame onto the surface of the drum;

The second power unit drives the winding shaft to wind up the yarn, and at the same time drives the yarn guide through the reciprocating screw rod to reciprocate the yarn along the axial direction of the drum;

The first power device drives the turntable to rotate, so that the full drum is moved away from the yarn guide frame, and at the same time, the empty drum is brought close to the yarn guide frame, so that the yarn starts to be wound on the empty drum;

The second cylinder drives the transmission assembly to move the cutting knife to the bottom of the winding drum, cooperates with the yarn arrangement mechanism to bring the yarn close to the cutting knife, and then retracts the cutting knife through the second cylinder to move the space between the full drum and the empty drum. The yarn is cut.

Further, during the yarn cutting control process, the yarn arrangement speed of the yarn guide frame is controlled through the reciprocating screw rod, and the time when the second cylinder completes the cutter operation is controlled to cut the yarn close to it;

Calculate the yarn cutting operation time based on the stroke time of the second cylinder, using the following formula:

V ₁ =1920*(A ₁ /A ₂ );

t ₁ =S ₁ /V ₁ =S ₁ A ₂ /1920A ₁ ;

Among them, V ₁ represents the reference speed of the second cylinder, S ₁ represents the stroke of the second cylinder, A ₁ represents the exhaust effective area of the second cylinder, A ₂ represents the piston effective area of the second cylinder, and the stroke time of the second cylinder is t ₁ ;

The time it takes for the yarn guide frame to move from the end far away from the yarn cutting mechanism to the end close to the yarn cutting mechanism is set as the yarn arrangement time, which is calculated using the following formula:

t ₂ =(S ₂ /L)/V ₂ ;

Among them, S ₂ represents the stroke of the reciprocating screw, L represents the pitch of the reciprocating screw, V ₂ represents the set yarn arrangement speed, and t ₂ represents the yarn arrangement time;

Since the time when the second cylinder retracts the cutting knife to complete the yarn cutting operation matches the yarn arrangement time, that is, there is a proportional relationship between t ₁ and t ₂ , the yarn arrangement speed of the reciprocating screw rod controlled yarn guide frame can be obtained, which is calculated using the following formula:

V ₂ =1920A ₁ (S ₂ /L)/kS ₁ A ₂ ;

Among them, k represents the proportional relationship between t ₁ and t ₂ , which is specifically set according to the cutter size and yarn guide stroke.

Furthermore, during the yarn cutting operation, the installation angle of the cutter on the swing arm is adjusted to ensure the yarn cutting quality;

When the empty drum is close to the yarn arrangement mechanism, the tail end yarn on the full drum is folded towards the empty drum through the yarn guide rod. Adjust the angle of the cutter to vertically press the yarn between the yarn guide rod and the empty drum. .

Further, in the process of controlling the second cylinder to drive the cutter to cut yarn, the yarn cutting speed is used to ensure the yarn cutting quality;

By increasing the gear ratio between the gear and the tooth sector in the transmission assembly, the yarn cutting speed is increased.

The beneficial effects of the present invention are:

In the present invention, the winding mechanism cooperates with the yarn arrangement mechanism to achieve uniform winding of the yarn along the axial direction of the drum. When the yarn on the drum is wound to a full winding state, the first power device drives the turntable to rotate to perform winding change. When the next empty reel is started, the yarn cutting mechanism will cut the yarn between the two winding reels to facilitate full winding. The automatic unloading operation of the drum; the second cylinder in the yarn cutting mechanism drives the cutting knife on the swing arm through the transmission assembly to perform the yarn cutting operation. During the continuous winding process through automatic roll change, the automatic yarn cutting operation is realized and the winding is improved. volume efficiency.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a carbon fiber dual-station dual-spindle winding machine in the present invention;

Figure 2 is a front view of the carbon fiber dual-station dual-spindle winding machine in the present invention;

Figure 3 is a schematic structural diagram of the yarn arrangement mechanism in the present invention;

Figure 4 is a side view of the carbon fiber dual-station dual-spindle winding machine in the present invention;

Figure 5 is a schematic structural diagram of the yarn cutting mechanism in the present invention;

Figure 6 is a schematic diagram of the retraction state of the cutting knife in the yarn cutting mechanism of the present invention;

Figure 7 is a schematic diagram of the extended state of the cutting knife in the yarn cutting mechanism of the present invention;

Figure 8 is a schematic diagram of changing the full-roll reel in the present invention;

Figure 9 is a schematic diagram of the cutter moving to the yarn cutting station after the roll change is completed in the present invention;

Figure 10 is a schematic diagram of the operation of the second cylinder in the present invention.

Reference signs: 1. Install vertical plate; 2. Winding mechanism; 21. Turntable; 22. Winding reel; 23. Drum; 24. Yarn guide rod; 25. First power unit; 26. Second power unit; 3. Yarn arrangement mechanism; 31. Support slide; 32. Yarn guide; 33. Reciprocating screw rod; 34. Sliding tongue; 35. Transmission rod; 36. Mounting seat; 361. Chute; 4. Pressure roller mechanism; 41. Lower pressure roller; 42. Swing frame; 421. Rotating rod; 422. Support rod; 423. Connecting seat; 43. Second connecting rod; 44. First cylinder; 5. Yarn cutting mechanism; 51. Swing arm; 511. First drive shaft; 52. Cutting knife; 53. Second cylinder; 54. Transmission assembly; 541. Gear; 542. Gear sector; 543. Second drive shaft; 55. First connecting rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the invention belongs. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1 to 10, a carbon fiber double-station twin-spindle winding machine includes a vertical plate 1 and a winding mechanism 2, a yarn arrangement mechanism 3, a pressure roller mechanism 4 and a yarn cutting mechanism 5 arranged on it. , the yarn arrangement mechanism 3, the pressure roller mechanism 4 and the yarn cutting mechanism 5 are sequentially arranged on the horizontal side of the winding mechanism 2 along the vertical direction.

The rewinding mechanism 2 includes a turntable 21 and a rewinding shaft 22 disposed thereon. A reel 23 is set on the rewinding shaft 22. The turntable 21 and the rewinding shaft 22 are driven by a first power device 25 and a second power device 26 respectively. Rotate, two winding reels 22 are arranged opposite each other on the turntable 21; the yarn arrangement mechanism 3 includes a support slide 31 and a yarn guide 32 slidingly connected thereto. The support slide 31 is arranged parallel to the winding shaft 22, and the yarn guide 32 passes through The reciprocating screw rod 33 is driven to move along the length direction of the support slide 31; the pressure roller mechanism 4 includes a lower pressure roller 41 arranged parallel to the winding shaft 22. The lower pressure roller 41 is arranged at one end of the swing frame 42 and is driven and pressed by the first cylinder 44. Towards the surface of the drum 23; the yarn cutting mechanism 5 includes a swing arm 51 and a cutter 52 arranged at one end thereof. The end of the swing arm 51 away from the cutter 52 is rotationally connected to the mounting vertical plate 1 and is driven by the second cylinder 53 through the transmission assembly. 54 drive rotation.

In the present invention, the winding mechanism 2 cooperates with the yarn arrangement mechanism 3 to achieve uniform winding of the yarn along the axial direction of the drum 23. When the yarn on the drum 23 is wound to a full winding state, it is driven by the first power device 25 The turntable 21 rotates to perform the roll changing operation, so that the full winding reel 22 is far away from the yarn arrangement mechanism 3, and the empty winding reel 22 is close to the yarn arrangement mechanism 3. When the next empty reel 23 is started, the two empty reels 23 are cut by the yarn cutting mechanism 5. The yarn between the winding reels 22 is cut to facilitate the automatic unloading operation of the full reel 23; the second cylinder 53 in the yarn cutting mechanism 5 drives the cutting knife 52 on the swing arm 51 through the transmission assembly 54 to perform the yarn cutting operation. During the continuous winding process through automatic roll change, automatic yarn cutting operation is realized to improve winding efficiency.

In the yarn cutting mechanism 5 shown in Figure 5, the swing arm 51 is rotationally connected to the mounting vertical plate 1 through the first drive shaft 511 provided at its end. The transmission assembly 54 includes an intermeshing gear 541 and a tooth sector 542. The fan 542 is rotatably connected to the mounting vertical plate 1 through a second drive shaft 543 disposed at its rotation center; the gear 541 is sleeved on the first drive shaft 511 and rotates coaxially with it, and the second drive shaft 543 passes through the first connecting rod. 55 is connected to the second cylinder 53. One end of the first connecting rod 55 is fixedly connected to the second drive shaft 543, and the other end is rotatably connected to the output shaft of the second cylinder 53.

The rotation of the tooth sector 542 can drive one end of the swing arm 51 to rotate and thereby realize the swing of the swing arm 51; as shown in Figure 7, the output shaft of the second cylinder 53 retracts, causing the tooth sector 542 to drive the gear 541 to rotate in the counterclockwise direction. Make the cutting knife 52 provided on the swing arm 51 extend toward the yarn to be cut; as shown in Figure 6, the output shaft of the second cylinder 53 extends, and the tooth sector 542 drives the gear 541 to rotate in the clockwise direction, so that the The cutter 52 on the arm 51 retracts and completes the yarn cutting operation.

As shown in the yarn arrangement mechanism 3 shown in Figures 3 and 4, the reciprocating screw rod 33 is arranged on the mounting base 36 and is rotationally connected with it. A chute 361 is provided on the mounting base 36 corresponding to the reciprocating screw rod 33; the reciprocating screw rod 33 passes through The transmission rod 35 is fixed on the sliding tongue 34 and is connected to the yarn guide frame 32 . The sliding tongue 34 is slidingly connected with the slide groove 361 and meshes with the threaded groove on the reciprocating screw rod 33 . The reciprocating screw rod 33 and the transmission rod 35 are both arranged parallel to the winding shaft 22, and the two ends of the transmission rod 35 are fixedly connected to the yarn guide frame 32 and the sliding tongue 34 respectively.

The yarn arrangement mechanism 3, the pressure roller mechanism 4 and the yarn cutting mechanism 5 are arranged in the vertical direction in sequence. The yarn is introduced from the top of the yarn arrangement mechanism 3 and wound downward through each mechanism in sequence; the yarn guide frame 32 is driven to move The reciprocating screw rods 33 are respectively arranged on both sides of the installation plate to realize the reciprocating motion of the yarn guide 32 while avoiding interference with other components; the reciprocating screw rod 33 is used to drive the yarn guide 32 to make reciprocating motion, so that the yarn guide 32 can reciprocate. 32 maintain a constant speed at the turning position to avoid yarn accumulation at both ends of the drum 23.

As shown in Figure 2, two turntables 21 are arranged oppositely on both sides of the rotation center of the turntable 21. Two yarn guide rods 24 are symmetrically arranged between the two winding shafts 22, and the distance between the winding shaft 22 and the yarn guide rod 24 is 90°. Angle setting. Through the yarn guide rod 24 provided between the two take-up reels 22, the yarn guide rod 24 can support the yarn between the two take-up reels 22 after the roll change, so as to facilitate the cutting knife 52 to perform the yarn cutting operation.

The swing frame 42 includes a rotating rod 421 and a supporting rod 422 arranged parallel to the winding shaft 22, and are fixedly connected through connecting seats 423 provided at both ends; the rotating rod 421 is rotationally connected to the installation vertical plate 1, and the lower pressure roller 41 is set on On the support rod 422, the first cylinder 44 is connected to the rotating rod 421 through the second connecting rod 43. One end of the second connecting rod 43 is fixedly connected to the rotating rod 421, and the other end is rotationally connected to the output shaft of the first cylinder 44.

The invention further discloses a yarn cutting control method of a carbon fiber dual-station twin-spindle winding machine, which adopts the above-mentioned carbon fiber dual-station twin-spindle winding machine and includes the following steps:

The yarn is wound sequentially through the yarn arrangement mechanism 3 and the pressure roller mechanism 4 to the drum 23 on the winding shaft 22. The first cylinder 44 drives the lower pressure roller 41 to press the yarn led out from the swing frame 42 onto the drum. 23 surface;

The second power device 26 drives the winding shaft 22 to wind the yarn, and at the same time, the reciprocating screw rod 33 drives the yarn guide 32 to reciprocate the yarn along the axial direction of the drum 23;

The first power device 25 drives the turntable 21 to rotate, so that the full winding drum 23 is moved away from the yarn guide frame 32, and at the same time, the empty winding drum 23 is brought close to the yarn guide frame 32, so that the yarn starts to be wound on the empty winding drum 23. ;

The second cylinder 53 drives the transmission assembly 54 to move the cutter 52 toward the bottom of the winding drum 23, cooperates with the yarn arrangement mechanism 3 to bring the yarn close to the cutter 52, and then retracts the cutter 52 through the second cylinder 53 to complete the roll. The yarn between the drum 23 and the empty drum 23 is cut.

As shown in Figure 10, during the entire yarn cutting operation process of the second cylinder 53 piston, its output shaft speed is related to air pressure, cylinder diameter, friction, and external resistance. Among them, the speed control valve has the greatest relationship with the running speed of the piston. Speed control valves are commonly used to adjust the speed of the cylinder. When the cylinder is unloaded, the exhaust side exhausts air at the speed of sound (there is almost no obstruction to the exhaust air flow).

The winder carries out the yarn cutting action process. When the yarn arrangement moves to the yarn cutting position, the cutter 52 is raised to the position and the yarn is cut. This requires the second cylinder 53 to lift the knife and cut the yarn at the same time as the yarn arrangement movement time. match.

Specifically, during the yarn cutting control process, the yarn arrangement speed of the yarn guide frame is controlled by the reciprocating screw rod, and the time when the second cylinder completes the cutter operation is controlled to cut the yarn close to it;

Calculate the yarn cutting operation time based on the stroke time of the second cylinder, using the following formula:

V ₁ =1920*(A ₁ /A ₂ );

t ₁ =S ₁ /V ₁ =S ₁ A ₂ /1920A ₁ ;

Among them, V ₁ represents the reference speed of the second cylinder, S ₁ represents the stroke of the second cylinder, A ₁ represents the exhaust effective area of the second cylinder, A ₂ represents the piston effective area of the second cylinder, and the stroke time of the second cylinder is t ₁ ;

The time it takes for the yarn guide frame to move from the end far away from the yarn cutting mechanism to the end close to the yarn cutting mechanism is set as the yarn arrangement time, which is calculated using the following formula:

t ₂ =(S ₂ /L)/V ₂ ;

Among them, S ₂ represents the stroke of the reciprocating screw, L represents the pitch of the reciprocating screw, V ₂ represents the set yarn arrangement speed, and t ₂ represents the yarn arrangement time;

Since the time when the second cylinder retracts the cutting knife to complete the yarn cutting operation matches the yarn arrangement time, that is, there is a proportional relationship between t ₁ and t ₂ , the yarn arrangement speed of the reciprocating screw rod controlled yarn guide frame can be obtained, which is calculated using the following formula:

V ₂ =1920A ₁ (S ₂ /L)/kS ₁ A ₂ ;

Among them, k represents the proportional relationship between t ₁ and t ₂ , which is specifically set according to the cutter size and yarn guide stroke. After actual testing, it was found that when t _{2 = 5} t ₁ , the yarn cutting efficiency can be maximized.

The yarn cutting action of the winder is to drive the cutter downwards through the cylinder to complete the cutting of the yarn. Therefore, the angle between the cutter and the yarn when cutting yarn has a crucial influence on the yarn cutting effect. After actual testing, it was found that when When the angle is small or large, the end surface of the cut yarn will be uneven and lint will easily occur.

During the yarn cutting operation, the installation angle of the cutter on the swing arm is adjusted to ensure the yarn cutting quality; when the empty drum approaches the yarn arrangement mechanism, the tail end yarn on the full drum is folded through the yarn guide rod. When the drum is empty, adjust the angle of the cutter so that it vertically presses the yarn between the yarn guide rod and the empty drum.

In the process of controlling the second cylinder to drive the cutter to cut yarn, the yarn cutting speed is used to ensure the yarn cutting quality; by increasing the gear ratio between the gear and the tooth sector in the transmission assembly, the yarn cutting speed is increased. In order to improve the efficiency of cutting yarn, the transmission component of the cutting knife is designed with a speed-increasing wheel for cutting yarn, including upper and lower gears and tooth sectors. In this embodiment, the gear ratio of the upper and lower wheel sets is 2:1, and the speed-increasing gear set is designed to increase the speed of the yarn cutting. The linear motion of the two cylinders is converted into the circular motion of the cutter, which also amplifies the speed of the cutter when cutting yarn.

Specifically, W represents work, F represents force, and S represents displacement, then W = F*S, and speed V is the ratio of displacement to time, that is, V = S/t, then the formula for work can be rewritten as W = F* V*t. By increasing the speed, the work is increased, the intensity of yarn cutting is increased, and the yarn cutting efficiency is improved.

Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A carbon fiber double-station twin-spindle winding machine, which is characterized in that it includes a vertical plate (1) and a winding mechanism (2), a yarn arrangement mechanism (3), and a pressure roller mechanism (4) arranged on it. and a yarn cutting mechanism (5). The yarn arrangement mechanism (3), the pressure roller mechanism (4) and the yarn cutting mechanism (5) are sequentially arranged on the winding mechanism (2) in the vertical direction. horizontal side; The rewinding mechanism (2) includes a turntable (21) and a rewinding shaft (22) arranged thereon. A drum (23) is set on the rewinding shaft (22). The turntable (21) and the rewinding shaft (22) are arranged on the rewinding shaft (22). The winding shaft (22) is driven to rotate by the first power unit (25) and the second power unit (26) respectively, and there are two opposite winding shafts (22) on the turntable (21); The yarn arrangement mechanism (3) includes a support slide (31) and a yarn guide (32) slidingly connected thereto. The support slide (31) is arranged parallel to the winding shaft (22). The yarn guide The frame (32) is driven by the reciprocating screw rod (33) to move along the length direction of the support slide (31); The pressure roller mechanism (4) includes a lower pressure roller (41) arranged parallel to the winding shaft (22). The lower pressure roller (41) is arranged at one end of the swing frame (42) and passes through the first cylinder ( 44) Drive and press against the surface of the drum (23); The yarn cutting mechanism (5) includes a swing arm (51) and a cutting knife (52) provided at one end thereof. The end of the swing arm (51) away from the cutting knife (52) is connected to the installation vertical plate (52). 1) Rotatingly connected, and driven to rotate by the second cylinder (53) through the transmission assembly (54). 2. The carbon fiber double-station twin-spindle winding machine according to claim 1, characterized in that the swing arm (51) is connected to the mounting vertical plate through the first drive shaft (511) provided at its end. (1) Rotational connection. The transmission assembly (54) includes an intermeshing gear (541) and a tooth sector (542). The tooth sector (542) passes through a second drive shaft (543) disposed at its rotation center. Rotatingly connected to the installation vertical plate (1); The gear (541) is sleeved on the first drive shaft (511) and rotates coaxially with it. The second drive shaft (543) communicates with the second cylinder (53) through the first connecting rod (55). ), one end of the first connecting rod (55) is fixedly connected to the second drive shaft (543), and the other end is rotatably connected to the output shaft of the second cylinder (53). 3. The carbon fiber double-station twin-spindle winding machine according to claim 1, characterized in that the reciprocating screw rod (33) is arranged on the mounting base (36) and is rotationally connected with it. 36) is provided with a chute (361) corresponding to the reciprocating screw rod (33); The reciprocating screw rod (33) is connected to the yarn guide frame (32) through a transmission rod (35) fixed on the sliding tongue (34), and the sliding tongue (34) is slidingly connected to the chute (361). And meshes with the thread groove on the reciprocating screw rod (33). 4. The carbon fiber double-station twin-spindle winding machine according to claim 3, characterized in that the reciprocating screw rod (33) and the transmission rod (35) are arranged parallel to the winding shaft (22). , both ends of the transmission rod (35) are fixedly connected to the yarn guide frame (32) and the sliding tongue (34) respectively. 5. The carbon fiber double-station twin-spindle winding machine according to claim 1, characterized in that the two turntables (21) are arranged oppositely on both sides of the rotation center of the turntable (21). Two yarn guide rods (24) are symmetrically arranged between the reels (22), and the winding shaft (22) and the yarn guide rod (24) are arranged at an included angle of 90°. 6. The carbon fiber double-station twin-spindle winding machine according to claim 1, characterized in that the swing frame (42) includes a rotating rod (421) and a support rod arranged parallel to the winding shaft (22). (422), and are fixedly connected through the connecting seats (423) provided at both ends; The rotating rod (421) is rotationally connected to the mounting vertical plate (1), the lower pressure roller (41) is sleeved on the support rod (422), and the first cylinder (44) passes through the second The connecting rod (43) is connected to the rotating rod (421). One end of the second connecting rod (43) is fixedly connected to the rotating rod (421), and the other end is connected to the output shaft of the first cylinder (44). Turn the connection. 7. A yarn cutting control method for a carbon fiber dual-station twin-spindle winding machine, characterized in that using the carbon fiber double-station twin-spindle winding machine according to any one of the above claims 1 to 6 includes the following steps: The yarn is wound sequentially through the yarn arrangement mechanism and the pressure roller mechanism to the drum on the winding shaft, and the pressure roller driven by the first cylinder presses the yarn exported from the swing frame onto the surface of the drum; The second power device drives the winding shaft to wind up the yarn, and at the same time drives the yarn guide through the reciprocating screw rod to reciprocate the yarn along the axial direction of the drum; The first power device drives the turntable to rotate, so that the full drum is moved away from the yarn guide frame, and at the same time, the empty drum is brought close to the yarn guide frame, so that the yarn starts to be wound on the empty drum; The second cylinder drives the transmission assembly to move the cutting knife to the bottom of the winding drum, cooperates with the yarn arrangement mechanism to bring the yarn close to the cutting knife, and then retracts the cutting knife through the second cylinder to move the space between the full drum and the empty drum. The yarn is cut. 8. The yarn cutting control method of the carbon fiber double-station twin-spindle winding machine according to claim 7, characterized in that during the yarn cutting control process, the yarn arrangement speed of the yarn guide frame is controlled by the reciprocating screw rod, and at the same time Control the time when the second cylinder completes the cutting knife operation and cuts the yarn close to it; Calculate the yarn cutting operation time based on the stroke time of the second cylinder, using the following formula: V ₁ =1920*(A ₁ /A ₂ ); t ₁ =S ₁ /V ₁ =S ₁ A ₂ /1920A ₁ ; Among them, V ₁ represents the reference speed of the second cylinder, S ₁ represents the stroke of the second cylinder, A ₁ represents the exhaust effective area of the second cylinder, A ₂ represents the piston effective area of the second cylinder, and the stroke time of the second cylinder is t ₁ ; The time it takes for the yarn guide frame to move from the end far away from the yarn cutting mechanism to the end close to the yarn cutting mechanism is set as the yarn arrangement time, which is calculated using the following formula: t ₂ =(S ₂ /L)/V ₂ ; Among them, S ₂ represents the stroke of the reciprocating screw, L represents the pitch of the reciprocating screw, V ₂ represents the set yarn arrangement speed, and t ₂ represents the yarn arrangement time; Since the time when the second cylinder retracts the cutting knife to complete the yarn cutting operation matches the yarn arrangement time, that is, there is a proportional relationship between t ₁ and t ₂ , the yarn arrangement speed of the reciprocating screw rod controlled yarn guide frame can be obtained, which is calculated using the following formula: V ₂ =1920A ₁ (S ₂ /L)/kS ₁ A ₂ ; Among them, k represents the proportional relationship between t ₁ and t ₂ , which is specifically set according to the cutter size and yarn guide stroke. 9. The yarn cutting control method of the carbon fiber double-station twin-spindle winder according to claim 7, characterized in that during the yarn cutting operation, the installation angle of the cutting knife on the swing arm is adjusted to ensure that the yarn is cut. quality; When the empty drum is close to the yarn arrangement mechanism, the tail end yarn on the full drum is folded towards the empty drum through the yarn guide rod. Adjust the angle of the cutter to vertically press the yarn between the yarn guide rod and the empty drum. . 10. The yarn cutting control method of the carbon fiber double-station twin-spindle winder according to claim 7, characterized in that, during the yarn cutting process of controlling the second cylinder to drive the cutter, the quality of the yarn is ensured by the yarn cutting speed; By increasing the gear ratio between the gear and the tooth sector in the transmission assembly, the yarn cutting speed is increased.