CN113862834A

CN113862834A - A cut out silk mechanism for wet spinning produces line

Info

Publication number: CN113862834A
Application number: CN202111033345.3A
Authority: CN
Inventors: 廖建; 胡向华; 潘业政
Original assignee: Ningbo Jianrong Science And Technology Co ltd
Current assignee: Ningbo Jianrong Science And Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-31

Abstract

The invention relates to a silk cutting mechanism for a wet spinning production line, which comprises a rack, wherein one end of the rack is a silk inlet, a bearing platform is arranged at the silk inlet, a cutter device is arranged on the bearing platform, transmission devices are arranged on the racks on two sides of the cutter device, a mechanical claw is connected onto the transmission devices and comprises a connecting frame, a double-acting air cylinder is arranged on the connecting frame and is connected with a gas supply source through a gas supply pipeline, two piston rods of the double-acting air cylinder are respectively provided with opposite clamping jaws, the rack is also provided with a servo motor for driving the transmission devices to operate, the transmission devices drive the mechanical claws to move when operating, and the servo motor is controlled by a PLC (programmable logic controller) program so as to control the two mechanical claws to move synchronously or alternatively. The silk cutting mechanism of the technical scheme can cut the fiber membrane in an automatic mode, can ensure that the length of the fiber membrane obtained by cutting is consistent, can greatly save cutting operation time, and further improves cutting efficiency.

Description

A cut out silk mechanism for wet spinning produces line

Technical Field

The invention relates to the technical field of wet spinning machinery, in particular to a yarn cutting mechanism for a wet spinning production line.

Background

The wet spinning production line is used for producing fiber membranes, for example, chinese patent with publication number CN107913603A and patent name "braided tube reinforced hollow fiber membrane and its preparation device and production process", and the described device includes a wire supply mechanism, a pre-coating machine head, a coagulating tank, a rinsing tank, a take-up mechanism and a wire winding wheel, in the course of spinning operation, the braided tube is pre-coated and coated with a high molecular polyester stock solution in sequence by the pre-coating machine head and the pre-coating machine head, and then enters the coagulating tank to react with the formula liquid therein, so that the high molecular polyester raw material is coagulated to form a hollow fiber membrane with the braided tube as an inner support, the formed hollow fiber membrane also needs to be pressed into the rinsing tank for cleaning, and finally collected by the take-up mechanism and the wire winding wheel.

The length of the formed fiber membrane is equal to that of the braided tube as the lining, so that the fiber membrane cannot be directly and effectively utilized, and the fiber membrane is cut into small sections which can be utilized after the fiber membrane is collected.

At present, cut the fibre membrane with artifical mode usually, when cutting, need place the one end of fibre membrane on the cutting table face, and manual the location, handheld cutter cuts again, because human inevitable appearance rocks when the cutting, leads to the cutting plane of the fibre membrane segment that obtains hardly guaranteeing to level, and the operation is wasted time and energy, and the unable accurate control of while cuts the length of the fibre membrane segment that obtains after.

Disclosure of Invention

Aiming at the above situation, in order to overcome the problems that manual cutting of the fiber membrane is time-consuming and labor-consuming in the prior art, the cutting surfaces of the obtained fiber membrane small sections are uneven, and the lengths of the fiber membrane small sections are easily different, the invention aims to provide the silk cutting mechanism which can cut the fiber membrane in an automatic mode, accurately and flexibly control the lengths of the obtained fiber membrane small sections on the premise of ensuring the smoothness of the cutting surfaces and has extremely high cutting efficiency.

In order to achieve the purpose, the technical solution of the invention is as follows:

the utility model provides a cut out silk mechanism for wet spinning produces line, which comprises a frame, the one end of frame is for advancing the silk mouth, it is equipped with load-bearing platform to advance silk mouth department, the last cutters that is equipped with of load-bearing platform, all be equipped with transmission in the frame of cutters both sides, the last gripper that is connected with of transmission, the gripper includes the link, be equipped with double-acting cylinder on the link, double-acting cylinder passes through the air supply line and is connected with the air supply source, all be equipped with the clamping jaw of opposition on two piston rods of double-acting cylinder, still be equipped with the servo motor who is used for driving transmission operation in the frame, transmission drives the gripper removal when operation, servo motor is by PLC controller program control, and then control two gripper synchronous motion or alternate movement.

Preferably, the transmission means comprise a belt which is wound around the output of the servomotor and which simultaneously passes through the gripper.

Preferably, the transmission device further comprises a guide rail seat installed on the frame, end covers are arranged at two ends of the guide rail seat, a top cover is arranged on the end covers, the conveyor belt is arranged among the guide rail seat, the end covers and the top cover, the gripper is connected to the top cover in a sliding mode, and one end of the conveyor belt sequentially penetrates through the gripper and the end cover on one side to be wound on the output end of the servo motor.

Preferably, two proximity switches are arranged on the transmission device at intervals, the proximity switches are electrically connected with the PLC, and the mechanical claw is connected to the transmission device part between the two proximity switches.

Preferably, the gripper further comprises a guide block, the guide block is connected with the connecting frame, a through groove is formed in the guide block, the guide block is buckled on the top cover through the through groove, the conveyor belt penetrates through the through groove at the same time, and anti-skidding teeth are arranged on the inner wall of the through groove.

Preferably, the bearing platform includes the base, is equipped with the skeleton on the base, constitutes the passageway that supplies the fibre membrane to pass through between base and skeleton, and on one side of base and skeleton was located to cutters, the skeleton deviates from and has reason line ware on the base of cutters one side, has seted up the wire casing of crossing that can supply the individual layer fibre membrane to pass through in the reason line ware.

Preferably, the cutter device comprises a cutter underframe, a main single-acting cylinder and a blade, the cutter underframe is connected with the base, the main single-acting cylinder is fixed on the framework and is simultaneously connected with the air supply source, and the blade is arranged on one side of the cutter underframe and is simultaneously connected with a piston rod of the main single-acting cylinder.

Preferably, the framework and the base are respectively provided with an upper propelling guide rail and a lower propelling guide rail, the upper propelling guide rail and the lower propelling guide rail are respectively in sliding fit with an upper propelling block and a lower propelling block, the upper propelling block is connected with the blade, and the lower propelling block is connected with the cutter underframe.

Preferably, the upper propelling block is provided with at least one auxiliary single-acting cylinder, the auxiliary single-acting cylinder is connected with the air supply source, and a piston rod of the auxiliary single-acting cylinder is connected with the blade.

Preferably, the yarn inlet is provided with a wheel frame, the wheel frame is provided with at least one group of yarn guide wheels, the yarn guide wheels are provided with a plurality of yarn dividing grooves, and the yarn guide wheels are sequentially arranged towards the direction of the cutter device.

Compared with the prior art, the invention has the advantages that:

the cutter device can automatically cut the fiber membrane passing through the cutter device, so that fiber membrane segments which can be directly utilized are obtained, the smoothness of the cutting surface of each fiber membrane segment is ensured, and in the cutting process, compared with the prior art, the fiber membrane does not need to be taken down from a wet spinning production line, and the cutting efficiency is improved;

servo motor is by PLC controller procedure automatic control, and then need not artifical the participation in cutting out the silk operation in-process, the problem that the manual work is cut out the silk operation and is wasted time and energy has been solved, the efficiency of cutting out the silk operation has been improved, simultaneously can guarantee that the gripper removes the same distance at every turn, and then guarantee the uniformity of the fibre membrane segment length that obtains when follow-up cuts, and operating personnel can be according to the production demand of difference, through the procedure of predetermineeing that changes the PLC controller, realize the length of the required fibre membrane of nimble regulation, and simultaneously, the PLC controller can also control the direction of rotation of servo motor rotor, thereby change transmission's transmission direction, make two grippers carry out reciprocating altemate, thereby alternate pulling fibre membrane, so greatly practiced thrift the latency of cutting out the silk operation in-process, the efficiency of cutting out the silk operation has further been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the wire cutting mechanism of the present invention;

FIG. 2 is an exploded view of the wire cutting mechanism drive of the present invention;

FIG. 3 is an exploded view of the gripper of the wire cutting mechanism of the present invention;

FIG. 4 is a schematic view of the overall structure of the guide block of the gripper of the present invention;

FIG. 5 is a schematic structural view of a cut-away section of the wire cutting mechanism of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the overall structure of the thread cutting mechanism carrying platform and the cutter device;

FIG. 8 is a schematic view of the overall structure of the bearing platform, the cutter device and the wire arranging device of the wire cutting mechanism of the present invention;

fig. 9 is an exploded view of the wheel frame and the godet wheel of the thread cutting mechanism of the present invention.

As shown in the figure:

1. a frame; 101. a wire inlet; 2. a bearing table; 201. a base; 202. a framework; 203. a channel; 3. a cutter device; 301. a cutter base frame; 302. a primary single-acting cylinder; 303. a blade; 304. an upper propulsion guide rail; 305. pushing the guide rail downwards; 306. an upper propulsion block; 307. a lower propulsion block; 308. an auxiliary single-acting cylinder; 4. a transmission device; 401. a conveyor belt; 402. a guide rail seat; 403. an end cap; 404. a top cover; 5. a gripper; 501. a connecting frame; 502. a double-acting cylinder; 503. a clamping jaw; 504. a guide block; 504a, a through slot; 504b, anti-slip teeth; 6. a servo motor; 7. a proximity switch; 8. arranging a wire device; 801. a wire passing groove; 9. a wheel carrier; 10. a godet wheel; 1001. a wire separating groove.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually arranged in when used, and are used for the convenience of description only, and do not indicate or imply that the orientations are required to have specific orientations and specific orientations, configurations and operations, and thus, the present invention is not to be construed as being limited.

As shown in fig. 1 and fig. 3, a silk cutting mechanism for a wet spinning production line comprises a frame 1, one end of the frame 1 is a silk inlet 101, a bearing platform 2 is arranged at the silk inlet 101, a cutter device 3 is arranged on the bearing platform 2, a fiber membrane is continuously conveyed to the silk inlet 101 of the frame 1 from a silk storage mechanism of the wet spinning production line and sequentially passes through the bearing platform 2 and the cutter device 3, the fiber membrane passing through the cutter device 3 is cut by the cutter device 3 in the silk cutting operation process, so that fiber membrane segments which can be directly utilized are obtained, the smoothness of the cut face of each fiber membrane segment is ensured, and the fiber membrane does not need to be taken down from the wet spinning production line during cutting, and the cutting efficiency is improved;

wherein, the frame 1 at both sides of the cutter device 3 is provided with a transmission device 4, the transmission device 4 is connected with a gripper 5, the gripper 5 comprises a connecting frame 501, the connecting frame 501 is provided with a double-acting cylinder 502, the double-acting cylinder 502 is connected with a gas supply source through a gas supply pipeline, in the embodiment, the double-acting cylinder 502 is provided with two piston rods, the two piston rods respectively penetrate through the upper and lower walls of the cylinder body, and the two piston rods are provided with gripping jaws 503, the two gripping jaws 503 are opposite to each other, gas is supplied into the cylinder body through the gas supply source, or the cylinder body exhausts gas to drive the gripping jaws to open or close, so that the fiber membrane enters between the two gripping jaws and is clamped, when the gas supply source supplies gas into the cylinder body of the double-acting cylinder 502, the two piston rods move back and back to the outside of the cylinder body to drive the two gripping jaws 503 to open, and when the cylinder body exhausts gas, the two gripping jaws 503 retract along with the two piston rods to the inside of the cylinder body, until clamping, in the process of cutting silk, the clamping jaws 503 are controlled to open in the above mode, the fiber membrane conveyed continuously enters between the two clamping jaws 503 after passing through the cutter device 3, and then the clamping jaws 503 are controlled to close together in the above mode to clamp the fiber membrane positioned therein, so as to realize the control of the fiber membrane;

wherein, the frame 1 is also provided with a servo motor 6 for driving the transmission device 4 to operate, the transmission device 4 drives the mechanical claw 5 to move synchronously when operating, then the fiber membrane is pulled by the folded clamping jaw 503, namely the mechanical claw 5 can move rapidly along with the rotation of the rotor of the servo motor 6, when the mechanical claw 5 moves towards the direction deviating from the silk inlet 101 of the frame 1, the fiber membrane is stretched, the moving distance of the mechanical claw 5 determines the stretched length of the fiber membrane, after the fiber membrane is cut by the cutter device 3, the fiber membrane segment with corresponding length can be obtained, in particular, the servo motor 6 is automatically controlled by a PLC program, further, the manual participation is not needed in the silk cutting operation process, the problem that the silk cutting operation is time-consuming and labor-consuming is solved, the efficiency of the silk cutting operation is improved, meanwhile, the mechanical claw 5 can be ensured to move the same distance every time, further, the consistency of the fiber membrane length obtained in the subsequent cutting is ensured, and operating personnel can be according to the production demand of difference, through changing the procedure of predetermineeing of PLC controller, realize the length of the required fibre membrane of nimble regulation, simultaneously, the PLC controller can also control the direction of rotation of 6 rotors of servo motor to change transmission 4's transmission direction, make two gripper 5 carry out reciprocating alternating movement, thereby alternate pulling fibre membrane, so greatly practiced thrift the latency of cutting out the silk operation in-process, further improved the efficiency of cutting out the silk operation.

As shown in fig. 2, the transmission device 4 includes a conveyor belt 401, the conveyor belt 401 is wound on the output end of the servo motor 6 and passes through the gripper 5, in order to facilitate the better transmission of the conveyor belt 401, the output shaft of the servo motor 6 is provided with a transmission wheel, the conveyor belt 401 is directly wound on the transmission wheel, the rotor of the servo motor 6 drives the conveyor belt 401 to transmit when rotating, thereby the corresponding gripper 5 is driven to move, in this embodiment, the servo motor 6 is installed on one end of the frame 1 departing from the cutter device 3, and further the maximum distance that the gripper 5 can move is greatly increased.

As shown in fig. 3, 5 and 6, the driving unit 4 further includes a rail housing 402 mounted on the frame 1, the guide rail seat 402 is in a door shape, end covers 403 are arranged at two ends of the guide rail seat 402, a top cover 404 is arranged on the end cover 403, a gap is reserved between the top cover 404 and the guide rail seat 402, the conveyor belt 401 is arranged among the guide rail seat 402, the end covers 403 and the top cover 404, the mechanical claw 5 is buckled on a top cover 404, one end of the conveyor belt 401 sequentially penetrates through the mechanical claw 5 and an end cover 403 on one side to be wound on the output end of the servo motor 6, the mechanical claw 5 is driven to move along the trend of the top cover 404 when the conveyor belt 401 is driven, and the top cover 404 is made of hard material, the top cover 404 can be arranged to support the mechanical claw 5 well when moving or standing.

As shown in fig. 2, two proximity switches 7 are arranged on the transmission device 4 at intervals, the gripper 5 is connected to the portion of the transmission device 4 between the two proximity switches 7, in this embodiment, the two proximity switches 7 are disposed on the upper end surface of the guide rail seat 402, the gripper 5 is buckled on the top cover 404 between the two proximity switches 7, the proximity switches 7 are electrically connected with the PLC controller, the proximity switches 7 do not need to be in direct contact with the guide block 504 of the moving gripper 5, and when the guide block 504 approaches to the induction surface thereof, the PLC controller is driven to control the operation of the servo motor 6, so as to realize the switch control, thereby preventing the gripper 5 from moving over-position, and playing a good protection role.

As shown in fig. 3 to 6, the gripper 5 further includes a guide block 504, the guide block 504 is connected to the connecting frame 501, a through slot 504a is formed in the guide block 504, the guide block 504 is buckled on the top cover 404 through the through slot 504a, the conveyor belt 401 simultaneously passes through the through slot 504a, and an anti-slip tooth 504b is formed on an inner wall of the through slot 504 a.

Furthermore, the bearing platform 2 comprises a base 201, a framework 202 is arranged on the base 201, the framework 202 is in a door shape, the open end of the connecting rod is buckled on the base 201, thereby forming a channel 203 with the base 201, the channel 203 is opposite to the silk inlet 101 of the frame 1, so that the conveyed fiber membrane can pass through, the cutter device 3 is arranged on one side of the framework 202 and the base 201, the fiber membrane passing through the channel 203 can synchronously pass through the cutter device 3, since the inner diameter of the channel 203 formed by the base 201 and the frame 202 is large, it is difficult to limit the lateral or longitudinal deflection of the fiber membrane when passing through the channel, and in this embodiment, meanwhile, a wire arranging device 8 is arranged on the base 201 of the framework 202 on the side away from the cutter device 3, a wire passing groove 801 is formed in the wire arranging device 8, the wire passing groove 801 is used for allowing the fiber membrane to pass through towards the cutter device 3, and the threading groove 801 can only be used for a single-layer fiber membrane to pass through, so that the passing fiber membrane can be effectively limited.

As shown in fig. 7 and 8, the cutter device 3 includes a cutter base frame 301, a main single-acting cylinder 302 and a blade 303, the cutter base frame 301 includes a main body part and a connecting part, the main body part is located at one side of the base 201, the connecting part is fixed with the base 201, the main body part of the base frame is in a concave shape, the main single-acting cylinder 302 is fixed on the frame 202 and is simultaneously connected with the air supply source, the blade 303 is located at one side of the main body part of the cutter base frame 301, and the blade 303 is simultaneously connected with the piston rod of the main single-acting cylinder 302, when the piston rod of the main single-acting cylinder 302 is at an initial position, the distance between the blade 303 and the lower end of the main body part of the cutter base frame 301 reaches a maximum value, the fiber membrane can pass through the position, as the piston rod of the main single-acting cylinder 302 moves, the distance between the blade 303 and the lower end of the main body part of the base gradually decreases, when the blade part of the blade 303 reaches a contact position with the lower end of the main body part of the cutter base frame 301, can decide the fibre membrane that wherein passes through, realize quick, the silk operation of cutting out repeatedly, and in this embodiment, the rectilinear movement of the piston rod of main single-action cylinder 302 can drive blade 303 and keep the removal of sharp all the time to guarantee to cut the planarization of the fibre membrane cutting plane that the back obtained.

As shown in fig. 7 and 8, the framework 202 and the base 201 are respectively provided with an upper pushing guide rail 304 and a lower pushing guide rail 305, the upper pushing guide rail 304 and the lower pushing guide rail 305 are respectively in sliding fit with an upper pushing block 306 and a lower pushing block 307, the upper pushing block 306 is directly connected with the blade 303 or indirectly connected through other components, and the lower pushing block 307 is connected with the cutter base frame 301.

As shown in fig. 7, at least one auxiliary single-acting cylinder 308 is disposed on the upper pushing block 306, the auxiliary single-acting cylinder 308 is connected to an air supply source, and a piston rod of the auxiliary single-acting cylinder 308 is connected to the blade 303, in this embodiment, during a filament cutting operation, the air supply source supplies air to the main single-acting cylinder 302 and the auxiliary single-acting cylinder 308 at the same time, so that the piston rod of the auxiliary single-acting cylinder 308 and the piston rod of the main single-acting cylinder 302 keep moving synchronously, and thus the piston rod of the auxiliary main single-acting cylinder 302 pushes the blade 303 to move synchronously, so that the blade 303 can move faster.

As shown in fig. 1 and 9, a wheel frame 9 is arranged at the yarn inlet 101, at least one set of godet wheels 10 is arranged on the wheel frame 9, a plurality of yarn dividing grooves 1001 are arranged on the godet wheels 10, the yarn dividing grooves 1001 are used for fiber membranes to pass through, two side walls of the yarn dividing grooves 1001 can independently divide each fiber membrane, so that the transverse movement of the passing fiber membranes is limited, the transverse displacement of the braided tube is prevented from causing stacking and winding, and the godet wheels 10 are sequentially arranged towards the cutter device 3, so that the fiber membranes leading to the bearing platform 2 and the cutter device 3 can be supported.

Referring to fig. 1 to 9, the specific operation principle of the silk cutting mechanism of the present invention during the silk cutting operation is as follows, during the silk cutting operation, the fiber film is continuously conveyed to the channel 203 formed by the base 201 and the framework 202 of the plummer 2 by the godet wheel 10, at this time, the air supply source is controlled to supply air to the cylinder bodies of the main single-acting cylinder 302 and the auxiliary single-acting cylinder 308, the respective piston rods synchronize the moving blade 303 to move upwards, the fiber film can pass between the blade 303 and the cutter underframe 301, the air supply source is controlled to supply air to the cylinder body of the double-acting cylinder 502 of any one of the mechanical claws, the two piston rods move back and forth towards the outside of the cylinder body, thereby driving the two clamping jaws 503 to open, at this time, the fiber film can enter between the two clamping jaws 503, then the cylinder body exhausts air, the two clamping jaws 503 are closed when retracting towards the inside of the cylinder body along with the two piston rods, the fiber film is clamped, the conveyor belt of the transmission device 4 is driven by the servo motor 6, simultaneously driving the two mechanical claws 5 to move along the trend of the top cover 404 in the direction away from the cutter device 3 and stretching the fiber membrane, when the two mechanical claws 5 move to the position close to the switch, the PLC controller controls the servo motor 6 corresponding to the mechanical claw 5 to stop running, simultaneously, the air supply source supplies air to the cylinder body of the double-acting air cylinder 502 on the other mechanical claw 5 to ensure that the two clamping jaws 503 of the mechanical claw 5 are opened again, and the PLC controller controls the rotor of the servo motor 6 of the mechanical claw 5 to rotate in the reverse direction, thereby changing the transmission direction of the transmission belt corresponding to the transmission device 4 and further driving the mechanical claw 5 to return, when the mechanical claw 5 reaches the position close to the switch on the side, namely the initial position, the PLC controller controls the mechanical claw 5 to stop moving, and then controls the cylinder body of the double-acting air cylinder 502 of the mechanical claw 5 to exhaust, so that the two clamping jaws 503 of the mechanical claw 5 are folded again to clamp the fiber membrane, thereby realizing the subsequent cutting, supporting the fiber membrane at the cutter device 3, preventing the fiber membrane from drooping and swinging during cutting, ensuring the consistent length of the fiber membrane obtained after cutting, controlling the cylinder bodies of the main single-action cylinder 302 and the auxiliary single-action cylinder 308 to exhaust after the clamping jaws 503 clamp the fiber membrane, so as to enable the blade 303 to move downwards to cut the fiber membrane passing below the blade, then simultaneously supplying air to the double-action cylinders of the two mechanical jaws 5, enabling the clamping jaws 503 to simultaneously open, enabling the cut fiber membrane to freely move and separate from the clamping jaws 503, then enabling the cut fiber membrane to enter between the two clamping jaws 503 of the mechanical jaw 5 close to the cutter device 3 side again along with the further conveying of the fiber membrane, controlling the air supply source to supply air to the cylinder body of the double-action cylinder 502 on the mechanical jaw 5 in the above way, enabling the two clamping jaws 503 to be folded again, controlling the servo motor 6 corresponding to the mechanical jaw 5 to operate by the PLC controller, and (3) moving the mechanical claw 5 to a direction far away from the cutter device 3, then controlling the servo motor 6 corresponding to the mechanical claw 5 to stop running by the PLC, and simultaneously controlling the servo motor 6 corresponding to the other mechanical claw 5 to run, so that the mechanical claw 5 returns, controlling the cylinder body of the double-acting air cylinder 502 on the mechanical claw 5 to exhaust, collecting the two clamping jaws 503 of the mechanical claw 5, and repeating the steps to realize the repeated cutting of the fiber membrane.

The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.

Claims

1. The utility model provides a cut out silk mechanism for wet spinning production line, it includes frame (1), the one end of frame (1) is into silk mouth (101), its characterized in that, it is equipped with load-bearing platform (2) to advance silk mouth (101) department, be equipped with cutters (3) on load-bearing platform (2), cutters (3) both sides all be equipped with transmission (4) on frame (1), be connected with gripper (5) on transmission (4), gripper (5) include link (501), be equipped with double-acting cylinder (502) on link (501), double-acting cylinder (502) are connected with the air supply source through the air supply line, all be equipped with oppositing clamping jaw (503) on two piston rods of double-acting cylinder (502), still be equipped with on frame (1) and be used for driving servo motor (6) that transmission (4) moved, the transmission device (4) drives the mechanical claws (5) to move when running, and the servo motor (6) is controlled by a PLC (programmable logic controller) program, so that the two mechanical claws (5) are controlled to move synchronously or alternatively.

2. The cutting mechanism for a wet spinning line according to claim 1, characterized in that the transmission device (4) comprises a conveyor belt (401), the conveyor belt (401) is wound on the output end of the servo motor (6) and simultaneously passes through the mechanical claw (5).

3. The silk cutting mechanism for the wet spinning production line of claim 2, wherein the transmission device (4) further comprises a guide rail seat (402) installed on the frame (1), end covers (403) are arranged at two ends of the guide rail seat (402), a top cover (404) is arranged on the end cover (403), the conveyor belt (401) is arranged among the guide rail seat (402), the end covers (403) and the top cover (404), the gripper (5) is connected to the top cover (404) in a sliding manner, one end of the conveyor belt (401) sequentially penetrates through the gripper (5) and one side of the end cover (403) and is wound on the output end of the servo motor (6).

4. The silk cutting mechanism for the wet spinning production line as claimed in claim 1, wherein two proximity switches (7) are arranged on the transmission device (4) at intervals, the proximity switches (7) are electrically connected with a PLC controller, and the mechanical claw (5) is connected to the part of the transmission device (4) between the two proximity switches (7).

5. The silk cutting mechanism for the wet spinning production line as claimed in claim 3, wherein the gripper (5) further comprises a guide block (504), the guide block (504) is connected with the connecting frame (501), a through slot (504a) is formed in the guide block (504), the guide block (504) is buckled on the top cover (404) through the through slot (504a), the conveyor belt (401) simultaneously passes through the through slot (504a), and anti-skid teeth (504b) are formed on the inner wall of the through slot (504 a).

6. The silk cutting mechanism for the wet spinning production line according to claim 1, wherein the bearing platform (2) comprises a base (201), a framework (202) is arranged on the base (201), a channel (203) for a fiber membrane to pass through is formed between the base (201) and the framework (202), the cutter device (3) is arranged on one side of the base (201) and the framework (202), the framework (202) deviates from one side of the cutter device (3), a thread arranging device (8) is arranged on the base (201), and a thread passing groove (801) for a single-layer fiber membrane to pass through is formed in the thread arranging device (8).

7. The silk cutting mechanism for the wet spinning production line as claimed in claim 6, wherein the cutter device (3) comprises a cutter chassis (301), a main single-acting cylinder (302) and a blade (303), the cutter chassis (301) is connected with the base (201), the main single-acting cylinder (302) is fixed on the framework (202) and is simultaneously connected with an air supply source, and the blade (303) is arranged on one side of the cutter chassis (301) and is simultaneously connected with a piston rod of the main single-acting cylinder (302).

8. The silk cutting mechanism for the wet spinning production line as claimed in claim 7, wherein the skeleton (202) and the base (201) are respectively provided with an upper pushing guide rail (304) and a lower pushing guide rail (305), the upper pushing guide rail (304) and the lower pushing guide rail (305) are respectively provided with an upper pushing block (306) and a lower pushing block (307) in a sliding fit manner, the upper pushing block (306) is connected with the blade (303), and the lower pushing block (307) is connected with the cutter base frame (301).

9. The filament cutting mechanism for the wet spinning production line according to claim 8, wherein at least one auxiliary single-acting cylinder (308) is arranged on the upper pushing block (306), the auxiliary single-acting cylinder (308) is connected with an air supply source, and a piston rod of the auxiliary single-acting cylinder (308) is connected with the blade (303).

10. The silk cutting mechanism for the wet spinning production line according to claim 1, wherein a wheel frame (9) is arranged at the silk inlet (101), at least one group of godet wheels (10) is arranged on the wheel frame (9), a plurality of silk dividing grooves (1001) are arranged on the godet wheels (10), and the godet wheels (10) are sequentially arranged in the direction of the cutter device (3).