CN117585524A

CN117585524A - Control method of continuous spinning machine

Info

Publication number: CN117585524A
Application number: CN202311732729.3A
Authority: CN
Inventors: 徐属斌; 王伟军
Original assignee: Zhejiang Wanshifa Textile Machinery Co ltd
Current assignee: Zhejiang Wanshifa Textile Machinery Co ltd
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-02-23

Abstract

The invention discloses a control method of a continuous spinning machine, which comprises a winding mechanism, a tension sensor and a control module, wherein a driving motor is arranged at the winding mechanism to drive a straight pipe detachably arranged on the winding mechanism to rotate so as to actively wind yarns, and the control module is used for setting the initial rotating speed of the driving motor and the initial tension of the tension sensor; yarn conveyed by the preamble equipment is wound on a winding mechanism after passing through the tension sensor, when the tension sensor detects that the tension of the conveyed yarn is increased, the feedback signal commands the rotation speed of the driving motor to be reduced, and when the tension sensor detects that the tension of the conveyed yarn is reduced, the feedback signal commands the rotation speed of the driving motor to be increased, so that continuous active variable-speed winding is maintained. The invention ensures the stable power of the straight pipe winding bobbin yarn, flexibly fine-adjusts the rotating speed of the driving motor by setting the yarn conveying tightness fed back by the tension sensor by the control module, adapts to slight change of the yarn conveying speed and ensures uniform winding of the bobbin yarn.

Description

Control method of continuous spinning machine

Technical Field

The invention relates to the field of textile machinery, in particular to a control method of a continuous spinning machine.

Background

The spinning machine is a machine for conveying and winding yarns and further winding the yarns into orderly bobbin yarns, so that the use of a subsequent weaving machine or a sewing machine is facilitated. While continuous spinning machines require the machine to run continuously for more than ten to forty hours, so as to wind a large cone of yarn of a certain diameter; because the continuous spinning time is long, the yarn can have speed change in the conveying process and the continuous diameter of the cone yarn becomes large, the winding is very easy to be uneven, the condition that the yarn is broken after being disordered or pulled is more likely to occur, the cone yarn with the ideal diameter cannot be wound, and the time wasted by shutdown maintenance also affects the production efficiency.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a control method of a continuous spinning machine, wherein the rotation speed is flexibly and finely adjusted through the active winding of a driving motor and the yarn conveying tightness fed back by the driving motor through a tension sensor, so that the stable winding of the bobbin yarn is ensured, the slight change of the conveying speed of the yarn is adapted, and the uniform winding of the bobbin yarn is ensured.

The invention adopts the following technical scheme: a control method of a continuous spinning machine comprises a winding mechanism, a tension sensor and a control module, wherein a driving motor is arranged at the winding mechanism to drive a straight tube detachably arranged on the winding mechanism to rotate so as to actively wind yarns, and the initial rotating speed of the driving motor and the initial tension of the tension sensor are set through the control module; yarn conveyed by the preamble equipment is wound on a winding mechanism after passing through the tension sensor, when the tension sensor detects that the tension of the conveyed yarn is increased, the feedback signal commands the rotation speed of the driving motor to be reduced, and when the tension sensor detects that the tension of the conveyed yarn is reduced, the feedback signal commands the rotation speed of the driving motor to be increased, so that continuous active variable-speed winding is maintained.

As an improvement, the continuous spinning machine also comprises a suction gun, the suction gun is operated to carry out the bearing of the yarn conveyed by the preamble equipment, and then the straight pipe of the winding mechanism is manually replaced or the feedback signal command winding mechanism is automatically replaced.

As an improvement, the continuous spinning machine further comprises a yarn guiding mechanism, wherein yarns sequentially pass through the tension sensor and the yarn guiding mechanism to the winding mechanism, the yarn guiding mechanism comprises a frame, an abutting wheel rotatably arranged on the frame and a yarn guiding head slidably arranged on the frame, the yarn guiding head is positioned in front of the abutting wheel to guide the yarns and axially slide along the abutting wheel, and the straight tube leans against the abutting wheel and winds the yarns when synchronously rotating; the yarn guide head is driven to slide by a driving mechanism, the driving mechanism comprises an input wheel, two driving wheels, a driving belt and a moving block, the input wheel and the two driving wheels are arranged in a triangular mode for the driving belt to wind, the input wheel is externally connected with a power source, the yarn guide head is arranged on the moving block, and the moving block is arranged on the driving belt between the two driving wheels to synchronously move.

As an improvement, the input wheel is a large wheel with a size larger than that of the driving wheels, the two driving wheels are small wheels with the same size, and the two driving wheels are symmetrically arranged on two sides of the input wheel to enable the driving belt to be wound to form an isosceles triangle.

As an improvement, the moving block is provided with a clamping groove, and the transmission belt is detachably clamped in the clamping groove; two or three groups of clamping grooves are arranged on the moving block at intervals for the sectional clamping of the transmission belt.

As an improvement, the winding mechanism further comprises a fixed frame, a movable frame and a pair of clamping tube seats, wherein the movable frame is rotatably arranged on the fixed frame, the movable frame is provided with a left swinging arm and a right swinging arm, the pair of clamping tube seats are respectively rotatably arranged on the two swinging arms and correspond to each other, the pair of clamping tube seats clamp and relax a straight tube through axial movement, and the driving motor drives the clamping tube seats to rotate.

As an improvement, a driving motor is arranged on the movable frame and is connected to the clamp tube seat through a transmission piece, so that power is provided to drive the clamp tube seat to rotate; the transmission part comprises a transmission wheel and a transmission belt, wherein the transmission wheel is coaxially arranged at the position of the clamping tube seat and the driving motor respectively, and the transmission belt is wound on the transmission wheel.

As an improvement, the two swing arms are rotatably connected with a support arm, long holes are formed in the support arm along the length direction of the support arm, a transverse shaft is mounted on the fixed frame and penetrates through the long holes, when the swing arms swing up and down, the support arm moves up and down, the long holes and the transverse shaft relatively displace, an elastic pressure piece is arranged on the lateral side of the support arm, and the elastic pressure piece abuts against the support arm by means of elasticity.

As an improvement, the elastic pressure piece is a spring, the cross shaft is further sleeved with a collision block, the collision block is positioned between the supporting arm and the spring, and the spring supports the collision block against the side face of the supporting arm by means of elasticity to provide friction force.

As an improvement, the spring and the interference block are located outside the support arm.

The invention has the beneficial effects that:

1. through the initiative coiling of driving motor, guarantee straight tube winding bobbin yarn's stable power, adaptation large diameter bobbin yarn can stably coil, makes continuous spinning machine can stably run the coiling for a long time.

2. The initial rotating speed of the driving motor and the initial tension of the tension sensor are set through the control module, so that the yarn conveying tightness fed back by the tension sensor can flexibly adjust the rotating speed of the driving motor, adapt to slight change of the yarn conveying speed and ensure uniform winding of the cone yarn.

Drawings

Fig. 1 is a schematic perspective view of a continuous spinning machine according to the present invention.

Fig. 2 is a schematic perspective view of the continuous spinning machine according to the present invention with the base removed.

Fig. 3 is a schematic perspective view and a partially enlarged view of a yarn guide head and a driving mechanism of a yarn guide mechanism of a continuous spinning machine according to the present invention, with a part of a housing removed.

Fig. 4 is a schematic front perspective view of the winding mechanism of the continuous spinning machine of the present invention with the contact roller and a part of the housing removed.

Fig. 5 is a schematic rear perspective view of the winding mechanism of the continuous spinning machine of the present invention with the contact roller and a part of the housing removed.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5, a control method of the continuous spinning machine according to the present invention is an embodiment. The continuous spinning machine of the embodiment comprises a winding mechanism B, a tension sensor C and a control module, wherein a driving motor B22 is arranged at the winding mechanism B to drive a straight pipe detachably arranged on the winding mechanism B to rotate so as to actively wind yarns, and the control module is used for setting the initial rotating speed of the driving motor B22 and the initial tension of the tension sensor C; yarn conveyed by the preamble equipment is wound on the winding mechanism B after passing through the tension sensor C, when the tension sensor C detects that the tension of the conveyed yarn is increased, the rotating speed of the feedback signal driving motor B22 is reduced, and when the tension sensor C detects that the tension of the conveyed yarn is reduced, the rotating speed of the feedback signal driving motor B22 is increased, so that continuous active variable-speed winding is maintained.

When the yarn feeding device is used, yarn is conveyed forwards from a rear device, the yarn passes through a tension sensor C, a yarn cleaning mechanism, a oiling mechanism and the like to be matched with a yarn guiding structure (realized in the prior art), then passes through a yarn guiding head A3 to a position between a straight pipe on a clamping pipe seat B4 of a winding mechanism B and an abutting wheel A2, and a driving motor B22 drives the clamping pipe seat B4 and the straight pipe to rotate so that the straight pipe actively winds the yarn, and the yarn guiding head A3 slides along the axial direction of the abutting wheel A2 synchronously, so that the yarn is uniformly wound on the straight pipe; along with the thickening of the yarn on the straight pipe, the clamp base B4 and the straight pipe can move so as to increase the gap between the straight pipe and the abutting wheel A2, and the active winding can ensure the stable power of the straight pipe winding bobbin yarn and adapt to long-time continuous winding. The staff sets up the initial rotational speed of driving motor B22 and the initial tension of tension sensor C through control module in advance, and in continuous winding's in-process, the transport tension of yarn is detected by tension sensor C in real time, regard initial tension as the datum point and carry out the reference and correspond to driving motor B22's initial rotational speed, feedback signal when tension sensor C detects the yarn tension of carrying and increase, feedback signal when tension sensor C detects the yarn tension of carrying and reduce the rotational speed of driving motor B22 and improve, namely the rotational speed of driving motor B22 is finely tuned in a flexible way according to the conveying elasticity of yarn, adapt to the slight fluctuation change of yarn conveying speed, guarantee the even winding of section of thick bamboo yarn.

As an improved specific embodiment, the continuous spinning machine further comprises a suction gun, wherein the suction gun is operated to receive the yarn conveyed by the preamble equipment, and then the straight pipe of the winding mechanism B is manually replaced or a feedback signal enables the winding mechanism B to be automatically replaced.

In the present embodiment, when the winding of the spun yarn is completed or when the shutdown adjustment is required, the yarn fed from the preceding machine can be received by using the suction gun, and the continuous spinning machine can be operated to replace the straight tube without stopping the preceding machine. According to different models of continuous spinning machines, straight tube replacement can be realized manually, or automatic full-material straight tube taking and new empty straight tube placing can be performed through configured external straight tube replacement equipment.

As an improved specific embodiment, the continuous spinning machine further comprises a yarn guiding mechanism A, wherein the yarn sequentially passes through the tension sensor C and the yarn guiding mechanism A to the winding mechanism B, the yarn guiding mechanism A comprises a frame A1, an abutting wheel A2 rotatably arranged on the frame A1 and a yarn guiding head A3 slidably arranged on the frame A1, the yarn guiding head A3 is positioned in front of the abutting wheel A2 to guide the yarn and axially slide along the abutting wheel A2, and the straight tube leans against the abutting wheel A2 and winds the yarn when synchronously rotating; the yarn guide head A3 is driven to slide by a driving mechanism A4, the driving mechanism A4 comprises an input wheel A41, two driving wheels A42, a driving belt A43 and a moving block A44, the input wheel A41 and the two driving wheels A42 are arranged in a triangular mode for the driving belt A43 to wind, the input wheel A41 is externally connected with a power source, the yarn guide head A3 is arranged on the moving block A44, and the moving block A44 is arranged on the driving belt A43 between the two driving wheels A42 to synchronously move.

As shown in fig. 3, the driving mechanism A4 for driving the yarn guide head A3 to reciprocate adopts a transmission design that an input wheel a41 and two transmission wheels a42 are adopted to wind and drive a transmission belt a43, and the whole design adopts smaller thickness, so that the occupied three-dimensional space is ensured to be smaller; the input wheel A41 is used for providing power for an external connection motor, the transmission belt A43 between the two transmission wheels A42 is parallel to the abutting wheel A2, and the moving block A44 enables the yarn guide head A3 to perform stable reciprocating motion relative to the abutting wheel A2 through the reciprocating motion of the transmission belt A43 so as to drive yarn to be uniformly conveyed and wound.

As an improved specific embodiment, the input wheel a41 is a large wheel with a size larger than that of the driving wheel a42, the two driving wheels a42 are small wheels with the same size, and the two driving wheels a42 are symmetrically arranged on two sides of the input wheel a41 to enable the driving belt a43 to be wound to form an isosceles triangle.

As shown in fig. 3, the large input wheel a41 is externally connected with a power source, and drives two smaller driving wheels a42 and a driving belt a43 to perform more stable reciprocating motion by means of the transmission ratio of the large wheel, and the power source can adopt a motor and drive the input wheel a41, the driving wheels a42 and the driving belt a43 to perform forward and reverse movement by means of forward and reverse rotation of the motor. The input wheel A41 and the two driving wheels A42 are arranged to form an isosceles triangle, one side of the driving belt A43 between the two driving wheels A42 forms a section with stable left and right stress after the driving belt A43 is wound on the isosceles triangle, the moving block A44 is stressed stably during the reciprocating motion of the section, the displacement stability can be ensured, and the uniform guiding and routing of yarns can be further ensured.

As a modified embodiment, the moving block a44 is slidably disposed on the frame A1, and the moving block a44 is supported by the frame A1 when the moving block a44 moves synchronously with the belt a 43.

As shown in fig. 3, in one embodiment, a hole structure is arranged on the moving block a44, and a shaft structure is arranged on the corresponding frame A1 to perform sleeve fit, so that a sliding state is realized, the structure is supported, and the stability of the reciprocating movement of the yarn guide head A3 is improved; in another embodiment, a sliding block or a sliding groove structure is arranged on the moving block a44, and a corresponding frame A1 is provided with an adaptive sliding groove or sliding block structure, so that a sliding state is realized, the structure is supported, and the stability of the reciprocating movement of the yarn guide head A3 is improved.

As an improved specific embodiment, the moving block a44 is provided with a clamping groove a441, and the driving belt a43 is detachably clamped in the clamping groove a 441; two or three groups of clamping grooves A441 are arranged on the moving block A44 at intervals for the segmented clamping of the driving belt A43.

As shown in fig. 3, the installation linkage with the driving belt a43 is realized by the arrangement of the clamping groove a 441; the transmission belt A43 is made of deformable materials, and is clamped into the clamping groove A441 and then positioned by virtue of friction force provided by extrusion between structures, so that the transmission belt A43 and the clamping groove A are synchronously movable, and the transmission stability is ensured. By means of the clamping grooves A441 arranged in multiple groups, stability is good after the clamping of the clamping grooves A441 and the transmission belt A43 is guaranteed, and independent clamping of the clamping grooves A441 and the moving block A44 is convenient to detach, replace and maintain.

As a modified embodiment, the outer surfaces of the input wheel a41 and the driving wheel a42 are provided with grooves a40, and the driving belt a43 is accommodated in the grooves a 40.

As shown in fig. 3, the arrangement of the groove a40 ensures that the transmission belt a43 is well wound on the input wheel a41 and the transmission wheel a42, and the left and right offset is not generated, so that the transmission stability is ensured; and the driving belt A43 is surrounded by the groove A40, so that larger contact friction force is generated, and the slipping of the driving belt A43 can be effectively avoided.

As an improved specific embodiment, the winding mechanism B further includes a fixed frame B1, a movable frame B2, and a pair of clamping tube seats B4, the movable frame B2 is rotatably disposed on the fixed frame B1, the movable frame B2 has a left swing arm B21 and a right swing arm B21, the pair of clamping tube seats B4 are rotatably disposed on the two swing arms B21 respectively and correspond to each other, the pair of clamping tube seats B4 clamp and relax the straight tube through axial movement, and the driving motor B22 drives the clamping tube seats B4 to rotate.

As shown in fig. 1, 2, 4 and 5, as the yarn thickens on the straight tube, the movable frame B2 and the swing arm B21 swing up to increase the gap between the straight tube and the abutting wheel A2. After the yarn is continuously wound by a sufficient amount, the clamping tube seat B4 and the straight tube are swung up to the upper position, the left swing arm B21 and the right swing arm B21 enable the space above to be open without blocking, the mechanical structure for loading and unloading can be operated to the position where the full straight tube is located without interference to perform unloading (the clamping tube seat B4 is used for loosening the straight tube) and loading of the empty straight tube (the clamping tube seat B4 is used for clamping the straight tube), good arrangement space is convenient for the efficient operation of the mechanical structure and the loading and unloading of the mechanical structure, the time for stopping and replacing a continuous spinning machine is reduced, and the production efficiency is improved. In specific implementation, the movable frame B2 can be arranged on the fixed frame B1 through a rotating shaft, natural lower swinging is carried out by means of gravity, a straight pipe on the clamping tube seat B4 is contacted with the contact wheel A2, a power source can be further configured for the movable frame B2 according to requirements, after the sufficient quantity of yarns are wound on the straight pipe, the upper swinging of the movable frame B2 is actively driven to swing outwards to a larger extent, and the upper swinging of the movable frame B2 is matched with an external mechanical structure to carry out the loading and unloading of the straight pipe; the left swing arm B21 and the right swing arm B21 can also be arranged on the movable frame B2 in a structure with adjustable spacing, so that the straight pipe winding machine can be suitable for winding straight pipes with different length specifications; the clamping tube seat B4 can adopt a pneumatic or electromagnetic driving mode, and drives the clamping tube seat B4 to axially separate when the power source is started, so that a space is reserved for the straight tube to accommodate, and the power source drives the clamping tube seat B4 to axially close and clamp the straight tube so as to facilitate subsequent synchronous swing and rotary winding.

As an improved specific embodiment, a driving motor B22 is arranged on the movable frame B2, and the driving motor B22 is connected to the clamp base B4 through a transmission piece so as to provide power to drive the clamp base B4 to rotate; the transmission part comprises a transmission wheel B41 coaxially arranged at the clamp seat B4 and the driving motor B22 respectively, and a transmission belt B42 wound on the transmission wheel B41.

As shown in fig. 1, 2 and 4, the driving motor B22 provides power for the rotation of the chuck base B4, and further enables the straight tube to actively wind yarn during starting. The driving motor B22 and the driving member are arranged on the movable frame B2 and the swing arm B21 together to perform synchronous swing with the clamping tube seat B4, and the driving wheel 41 and the driving belt 42 can be arranged in a form of matching a chain wheel with a chain or matching a belt wheel with a belt, etc., so that an orderly and stable driving function is realized.

As an improved specific embodiment, two swing arms B21 are rotatably connected with a support arm B5, a long hole B51 is formed in the support arm B5 along the length direction of the support arm B5, a transverse shaft B6 is mounted on the fixed frame B1, the transverse shaft B6 penetrates through the long hole B51, when the swing arm B21 swings up and down, the support arm B5 moves up and down, the long hole B51 and the transverse shaft B6 perform relative displacement, an elastic pressure piece B61 is arranged on the transverse shaft B6 at the side edge of the support arm B5, and the elastic pressure piece B61 abuts against the support arm B5 by means of elasticity.

As shown in fig. 4 and 5, when the two swing arms B21 swing up and down, the support arm B5 swings around its rotation axis, the long hole B51 and the transverse shaft B6 perform relative displacement, the elastic pressure member B61 abuts against the support arm B5 by means of elastic force, and provides a certain resistance between the long hole B51 and the transverse shaft B6, so that supporting forces are provided for the two swing arms B21 at different heights, so that the two swing arms B21 are guaranteed to have a certain stability when staying at different heights, and the stability of straight pipe winding is guaranteed.

As an improved specific embodiment, the elastic pressure member B61 is a spring, the transverse shaft B6 is further sleeved with a supporting block B62, the supporting block B62 is located between the supporting arm B5 and the spring, and the spring supports the supporting block B62 against the side surface of the supporting arm B5 by means of elasticity to provide friction force.

As shown in fig. 4 and 5, the springs are specifically selected to elastically abut against each other, the springs can be sleeved on the transverse shaft B6, the structural arrangement is stable, the outer side of the springs can be limited by, for example, a nut part, the inner side of the springs abuts against the abutting block B62, the other side of the abutting block B62 abuts against the side surface of the supporting arm B5 to provide friction force, and the structural stability is improved.

As a modified embodiment, the spring and the interference block B62 are located outside the support arm B5.

As shown in fig. 4 and 5, the spring and the abutting block B62 abut on the outer sides of the supporting arms B5 at both sides to provide friction force, so that the stability of the supporting arms B5 during abutting is ensured while the elastic force of the spring is conveniently adjusted.

As a modified embodiment, the upper and lower limit positions of the upper long hole B51 of the support arm B5 correspond to the limit positions of the upper and lower swing of the movable frame B2.

The swing limit of the movable frame B2 is limited by the upper limit position and the lower limit position of the long hole B51, so that limit management is conveniently carried out on the movable frame B2 and the swing arm B21, and the random swing or abnormal swing is prevented from damaging parts by collision.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. A control method of a continuous spinning machine, characterized by: the continuous spinning machine comprises a winding mechanism (B), a tension sensor (C) and a control module, wherein a driving motor (B22) is arranged at the winding mechanism (B) to drive a straight pipe detachably arranged on the winding mechanism (B) to rotate so as to actively wind yarns, and the control module is used for setting the initial rotating speed of the driving motor (B22) and the initial tension of the tension sensor (C); yarn conveyed by the preamble equipment is wound on a winding mechanism (B) after passing through a tension sensor (C), when the tension sensor (C) detects that the tension of the conveyed yarn is increased, the rotating speed of a feedback signal driving motor (B22) is reduced, and when the tension sensor (C) detects that the tension of the conveyed yarn is reduced, the rotating speed of the feedback signal driving motor (B22) is increased, so that continuous active variable-speed winding is maintained.

2. A control method of a continuous spinning machine according to claim 1, characterized in that: the continuous spinning machine further comprises a suction gun, the suction gun is operated to carry out bearing on yarns conveyed by the preamble equipment, and then the straight pipe of the winding mechanism (B) is manually replaced or the feedback signal command winding mechanism (B) is automatically replaced.

3. A control method of a continuous spinning machine according to claim 1 or 2, characterized in that: the continuous spinning machine further comprises a yarn guiding mechanism (A), yarn sequentially passes through the tension sensor (C) and the yarn guiding mechanism (A) until reaching the winding mechanism (B), the yarn guiding mechanism (A) comprises a frame (A1), a collision wheel (A2) rotatably arranged on the frame (A1) and a yarn guiding head (A3) slidably arranged on the frame (A1), the yarn guiding head (A3) is positioned in front of the collision wheel (A2) to guide the yarn and axially slides along the collision wheel (A2), and a straight tube leans against the collision wheel (A2) and winds the yarn when synchronously rotating; the yarn guide head (A3) is driven to slide by the driving mechanism (A4), the driving mechanism (A4) comprises an input wheel (A41), two driving wheels (A42), a driving belt (A43) and a moving block (A44), the input wheel (A41) and the two driving wheels (A42) are arranged in a triangular mode to be wound by the driving belt (A43) and are externally connected with a power source by the input wheel (A41), the yarn guide head (A3) is arranged on the moving block (A44), and the moving block (A44) is arranged on the driving belt (A43) between the two driving wheels (A42) to synchronously move.

4. A control method of a continuous spinning machine according to claim 3, characterized in that: the input wheel (A41) is a large wheel with the size larger than that of the driving wheel (A42), the two driving wheels (A42) are small wheels with the same size, and the two driving wheels (A42) are symmetrically arranged on two sides of the input wheel (A41) to enable the driving belt (A43) to be wound to form an isosceles triangle.

5. A control method of a continuous spinning machine according to claim 3, characterized in that: the moving block (A44) is provided with a clamping groove (A441), and the driving belt (A43) is detachably clamped in the clamping groove (A441); two or three groups of clamping grooves (A441) are arranged on the moving block (A44) at intervals for the segmented clamping of the driving belt (A43).

6. A control method of a continuous spinning machine according to claim 1 or 2, characterized in that: the winding mechanism (B) further comprises a fixed frame (B1), a movable frame (B2) and a pair of clamping tube seats (B4), the movable frame (B2) is rotatably arranged on the fixed frame (B1), the movable frame (B2) is provided with a left swinging arm (B21) and a right swinging arm (B21), the pair of clamping tube seats (B4) are rotatably arranged on the two swinging arms (B21) respectively and correspond to each other, the pair of clamping tube seats (B4) clamp and relax straight tubes through axial movement, and the driving motor (B22) drives the clamping tube seats (B4) to rotate.

7. A control method of a continuous spinning machine according to claim 6, characterized in that: a driving motor (B22) is arranged on the movable frame (B2), and the driving motor (B22) is connected to the clamp base (B4) through a transmission piece so as to provide power to drive the clamp base (B4) to rotate; the transmission part comprises a transmission wheel (B41) which is coaxially arranged at the clamping tube seat (B4) and the driving motor (B22) respectively, and a transmission belt (B42) which is wound on the transmission wheel (B41).

8. A control method of a continuous spinning machine according to claim 7, characterized in that: the two swing arms (B21) are rotatably connected with a support arm (B5), long holes (B51) are formed in the support arm (B5) along the length direction of the support arm, a transverse shaft (B6) is arranged on the fixed frame (B1), the transverse shaft (B6) penetrates through the long holes (B51), when the swing arms (B21) swing up and down, the support arm (B5) moves up and down, the long holes (B51) and the transverse shaft (B6) relatively displace, an elastic pressure piece (B61) is arranged on the lateral side of the support arm (B5) on the transverse shaft (B6), and the elastic pressure piece (B61) abuts against the support arm (B5) by means of elasticity.

9. A control method of a continuous spinning machine according to claim 8, characterized in that: the elastic pressure piece (B61) is a spring, the cross shaft (B6) is further sleeved with a collision block (B62), the collision block (B62) is located between the support arm (B5) and the spring, and the spring supports the collision block (B62) against the side face of the support arm (B5) by means of elasticity to provide friction force.

10. A control method of a continuous spinning machine according to claim 9, characterized in that: the spring and the abutting block (B62) are located on the outer side of the supporting arm (B5).