A chain gripper mechanism capable of automatically cutting yarn

Abstract

The application relates to the field of warp knitting machines, in particular to a chain clamping mechanism capable of automatically cutting yarn, which comprises a first rack and a second rack arranged symmetrically, a chain is arranged on the first rack through a chain wheel transmission, automatic clamping and releasing of the yarn are realized through cooperation of a yarn clamping assembly and a driving system, operation efficiency is high, manual intervention is reduced, labor intensity is reduced, the yarn clamping assembly is controlled by an adjusting system, through cooperation of a blade and the blade part of a double cutter seat, accurate and complete cutting of the yarn is ensured, the problems of yarn waste or uneven cutting are avoided, the yarn pressing assembly automatically presses down after the yarn is placed, the yarn is always located between the cutter cooperation arm and the cutter arm before cutting, cutting failure caused by yarn shaking is prevented, the reliability of the system is improved, and only a single driving system is needed to complete the work of clamping the yarn and cutting the yarn, the synchronism and consistency of the clamping and cutting actions are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of warp knitting machines, in particular to a chain clamping mechanism capable of automatically cutting yarns. BACKGROUND

[0002] In the technical field of warp knitting machines, the clamping and cutting of yarns are key links affecting production efficiency and product quality. On traditional warp knitting machines, a weft selection trolley is used to place yarns on a chain clamping device, and the yarns are transmitted by a chain, but the cutting of the yarns is mostly completed by manual operation or a separately controlled cutting device, which is low in operation efficiency, high in labor intensity, and high in cost, and the yarns may deviate during the cutting process due to the shaking of the equipment during operation, thereby failing to be effectively cut. SUMMARY

[0003] The present application aims to solve the problems in the prior art and provides a chain clamping mechanism capable of automatically cutting yarns.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] A chain clamping mechanism capable of automatically cutting yarns comprises symmetrically arranged first and second racks, a chain is arranged on the first rack through a chain wheel transmission, yarn clamping assemblies are uniformly and spacedly arranged on the chain through a chain connecting plate, the yarn clamping assembly comprises a chain connecting piece, one side surface of the chain connecting piece is connected with the chain through the chain connecting plate, a clamping seat is installed on the other side surface of the chain connecting piece, and a clamping block for clamping the yarn is rotatably arranged on the clamping seat.

[0006] The chain connecting piece comprises a cutting assembly mounting block for mounting a cutting assembly, a clamping seat mounting plate for connecting the clamping seat is installed on the cutting assembly mounting block, a driving system for controlling the opening and closing of the yarn clamping assembly is arranged below the yarn clamping assembly on the first rack, the driving system comprises an electric cylinder connecting plate, an adjusting system for controlling the opening and closing of the cutting assembly is arranged in the middle of the electric cylinder connecting plate, a yarn pressing mounting rack is vertically arranged on the electric cylinder connecting plate, a plurality of yarn pressing assembly connecting plates are uniformly arranged on the top of the yarn pressing mounting rack along the transverse direction, and a yarn pressing assembly is connected to each yarn pressing assembly connecting plate.

[0007] The yarn pressing assembly comprises a rotating frame vertically connected with the yarn pressing assembly connecting plate, a rotating bent plate is rotatably arranged on the rotating frame, a limiting head for abutting against the rotating bent plate is arranged on the side wall of the rotating frame above the rotating bent plate, a first protruding head is arranged on one side wall of the rotating frame, a second protruding head is arranged on the bottom of the rotating bent plate, and a second spring is arranged between the first protruding head and the second protruding head.

[0008] Moreover, preferably, the first rack is symmetrically provided with a first movable opening for the movable electric cylinder connecting plate, a second movable opening for adjusting the system is provided between the two first movable openings, a limiting support frame for supporting the adjusting system is arranged at the surface of the side wall below the second movable opening, and chains, a driving system and a thread clamping assembly are arranged on the first rack and the second rack.

[0009] The first rack and the second rack are symmetrically provided with chain transmission blocks for cooperating with the chains, and an infrared monitoring probe for monitoring the thread is arranged on one side of the rack body of the first rack and the second rack, and a third movable opening for the movable electric cylinder connecting plate is symmetrically provided on the second rack.

[0010] Moreover, preferably, the driving system comprises servo electric cylinders, the servo electric cylinders are symmetrically and vertically arranged below the first movable opening and the third movable opening, a piston rod mounting head is arranged on the output end of the servo electric cylinder, an electric cylinder connecting plate is horizontally mounted on the two piston rod mounting heads, a slide block connecting plate is vertically connected to the front side of the electric cylinder connecting plate, the slide block connecting plate is mounted on the slide blocks on the two sides, the slide blocks are slidingly fitted on the slide rails, a first push wheel plate is arranged on the top of the slide block connecting plate, and first push wheels are uniformly arranged on the first push wheel plate and are horizontally rotatable, the first push wheels are used for pressing the thread clamping assembly.

[0011] Moreover, preferably, the clamping block is rotationally arranged on the clamping seat by a torsional spring.

[0012] Moreover, preferably, the thread cutting assembly comprises a blade matching arm, a blade arm and a third spring, the blade matching arm is vertically mounted on a thread cutting mounting block, the blade arm is rotationally fitted on the blade matching arm, and the third spring is arranged between the blade arm and the blade matching arm.

[0013] Moreover, preferably, the blade arm is provided with a limiting portion for being pushed by the adjusting system at the bottom, a fourth protrusion is arranged on the side wall of the middle portion of the blade arm, a blade mounting groove is arranged at the top of the blade arm, and a blade for cutting the thread is mounted in the blade mounting groove.

[0014] Moreover, preferably, the blade matching arm is connected with a third protrusion at the bottom side wall, the third spring is sleeved on the third protrusion and the fourth protrusion at the two ends, a double-blade seat is mounted by being pressed by a blade pressing plate at the top of the blade matching arm, and the blade is rotatably arranged in the double-blade seat.

[0015] The double-blade seat is symmetrically provided with blade portions on the two sides, and a groove for the movable blade is arranged between the two blade portions.

[0016] In addition, preferably, the adjusting system comprises a pressing wheel, the pressing wheel is rotationally arranged on the electric cylinder connecting plate, a supporting plate is rotationally arranged below the pressing wheel, the supporting plate is rotationally arranged through a rotating seat mounted on the first rack, the supporting plate is abutted by the pressing wheel at one end of the upper surface, a supporting roller is rotationally arranged at the other end of the supporting plate, and a limiting supporting frame is abutted on the bottom of the supporting plate.

[0017] In addition, preferably, the supporting plate is abutted by a pushing wheel connecting plate, the pushing wheel connecting plate is vertically and slidingly fitted on the reset frame, the reset frame is mounted below the chain transmission block on the top of the first rack;

[0018] The pushing wheel connecting plate comprises a sliding plate, the sliding plate is slidingly fitted on the reset frame, a second pushing wheel plate is fixedly connected on the top of the sliding plate in a transverse direction, second pushing wheels are rotationally arranged on the second pushing wheel plate in a transverse direction, and the second pushing wheels are used for extruding the limiting part.

[0019] The reset frame comprises an upper mounting plate, the upper mounting plate is mounted on the bottom of the chain transmission block, slide rods are vertically arranged on the bottom of the upper mounting plate in a symmetrical manner, the sliding plate is slidingly fitted on the slide rods, first springs are sleeved on the slide rods, the top of the first spring is abutted by the upper mounting plate, and the bottom of the first spring is abutted on the sliding plate.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. Through the cooperation of the thread clamping assembly and the driving system, automatic clamping and releasing of the yarn are realized, the operation efficiency is high, manual intervention is reduced, the labor intensity is reduced, the thread cutting assembly is controlled by the adjusting system, the blade and the blade part of the double knife seat are cooperated, the yarn is accurately and completely cut, and the problems of yarn waste or uneven cutting are avoided.

[0022] 2. The thread pressing assembly is automatically pressed after the yarn is placed, the yarn is always located between the blade cooperation arm and the blade arm before cutting, the cutting failure caused by the shaking of the yarn is prevented, the reliability of the system is improved, and the work of clamping the yarn and cutting the yarn can be completed through a single driving system, so that the synchronism and consistency of the clamping and cutting actions are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the chain clamping mechanism as a whole.

[0024] Figure 2 It is a structure schematic view of the first rack.

[0025] Figure 3 It is a structure schematic view of the driving system mounted on the first rack.

[0026] Figure 4 It is a structure schematic view of the second rack.

[0027] Figure 5 Structure diagram of the driving system installed on the second rack;

[0028] Figure 6 Structure diagram of the thread clamping assembly;

[0029] Figure 7 Structure diagram of the driving system;

[0030] Figure 8 Structure diagram of the adjusting system installation position;

[0031] Figure 9 Structure diagram of the adjusting system;

[0032] Figure 10 Structure diagram of the supporting roller supporting the push wheel connecting plate;

[0033] Figure 11 Structure diagram of the push wheel connecting plate and the reset frame after being disassembled;

[0034] Figure 12 Structure diagram of the thread pressing installation frame;

[0035] Figure 13 Structure diagram of the thread pressing assembly;

[0036] Figure 14 Structure diagram of the chain and the thread clamping assembly after being disassembled;

[0037] Figure 15 Structure diagram of the chain connecting piece and the clamping seat after being disassembled;

[0038] Figure 16 Structure diagram of the inside of the clamping seat;

[0039] Figure 17 Structure diagram of the chain connecting piece after being disassembled;

[0040] Figure 18 Structure diagram of the thread cutting assembly after being disassembled;

[0041] Figure 19 Structure diagram of the blade arm after being disassembled;

[0042] Figure 20 Structure diagram of the blade matching arm and the thread cutting installation block after being disassembled;

[0043] Figure 21 Structure diagram of the blade matching arm after being disassembled;

[0044] Figure 22 Structure diagram of the double-blade seat.

[0045] In the figure: 01, first rack; 011, first movable port; 012, second movable port; 013, limiting support frame; 02, second rack; 021, third movable port; 03, chain; 031, chain connecting plate; 04, chain transmission block; 05, driving system; 051, servo electric cylinder; 052, piston rod mounting head; 053, electric cylinder connecting plate; 054, sliding block connecting plate; 055, sliding block; 056, sliding rail; 057, first push wheel plate; 0571, first push wheel; 06, infrared monitoring probe; 1, wire clamping assembly; 11, chain connecting piece; 111, wire cutting installation block; 112, clamping seat installation plate; 12, clamping seat; 13, clamping block; 14, torsional spring; 2, wire cutting assembly; 21, blade matching arm; 211, third protrusion; 212, blade pressing plate; 213, double knife seat; 2131, empty slot; 2132, blade part; 22, blade arm; 221, blade; 222, fourth protrusion; 223, blade installation slot; 224, limiting part; 23, third spring; 24, disc spring; 3, wire pressing assembly; 31, rotating frame; 311, first protrusion; 32, limiting head; 33, rotating bending plate; 331, second protrusion; 34, second spring; 4, adjusting system; 41, pressing wheel; 42, rotating seat; 43, support plate; 431, support roller; 44, push wheel connecting plate; 441, sliding plate; 442, second push wheel plate; 443, second push wheel; 45, reset frame; 451, upper mounting plate; 452, sliding rod; 453, first spring; 5, wire pressing installation frame; 51, wire pressing assembly connecting plate. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0047] Reference Figures 1-22 A chain clamping mechanism capable of automatically cutting yarn includes symmetrically arranged first rack 01 and second rack 02. Chain 03 is arranged on first rack 01 through chain wheel transmission. Wire clamping assembly 1 is uniformly and intermittently arranged on chain 03 through chain connecting plate 031. Wire clamping assembly 1 includes chain connecting piece 11. One side surface of chain connecting piece 11 is connected with chain 03 through chain connecting plate 031. Clamping seat 12 is installed on the other side surface of chain connecting piece 11. Clamping block 13 for clamping yarn is rotatably arranged on clamping seat 12. Clamping block 13 cooperates with clamping seat 12 to clamp yarn.

[0048] The chain connecting piece 11 comprises a cutting line mounting block 111 for mounting the cutting line assembly 2, the cutting line mounting block 111 is provided with a clamping seat mounting plate 112 for connecting the clamping seat 12, the first rack 01 is provided below the cutting line assembly 1 with a driving system 05 for controlling the opening and closing thereof, the driving system 05 comprises an electric cylinder connecting plate 053, the middle part of the electric cylinder connecting plate 053 is provided with an adjusting system 4 for controlling the opening and closing of the cutting line assembly 2, the electric cylinder connecting plate 053 is vertically provided with a line pressing mounting frame 5, a plurality of line pressing assembly connecting plates 51 are uniformly arranged on the top of the line pressing mounting frame 5 in the transverse direction, the line pressing assembly connecting plates 51 are connected with the line pressing assemblies 3, the line pressing assembly 3 comprises a rotating frame 31 vertically connected with the line pressing assembly connecting plate 51, the rotating frame 31 is provided with a rotating bending plate 33, the rotating frame 31 is provided with a limiting head 32 for abutting against the rotating bending plate 33 at the side wall above the rotating bending plate 33, the rotating frame 31 is provided with a first protruding head 311 at one side wall, the rotating bending plate 33 is provided with a second protruding head 331 at the bottom, a second spring 34 is arranged between the first protruding head 311 and the second protruding head 331, and the second spring 34 is used for resetting the rotating bending plate 33.

[0049] In addition, the first rack 01 is symmetrically provided with a first movable opening 011 for the electric cylinder connecting plate 053, and a second movable opening 012 is arranged between the two first movable openings 011 for the adjusting system 4, the second movable opening 012 is provided with a limiting support frame 013 for supporting the adjusting system 4 at the side wall surface below the cutting line assembly 2, the first rack 01 and the second rack 02 are both provided with the chain 03, the driving system 05 and the thread clamping assembly 1, the first rack 01 and the second rack 02 are both symmetrically provided with a chain transmission block 04 for cooperating with the chain 03, and the infrared monitoring probe 06 is arranged on one side of the rack body of the first rack 01 and the second rack 02 for monitoring the yarn, and the second rack 02 is symmetrically provided with a third movable opening 021 for the electric cylinder connecting plate 053, and the infrared monitoring probe 06 is used for monitoring whether the thread clamping assembly 1 on both sides clamps the yarn.

[0050] Furthermore, the driving system 05 comprises a servo electric cylinder 051, the servo electric cylinder 051 is symmetrically and vertically arranged below the first movable opening 011 and the third movable opening 021, the output end piston rod of the servo electric cylinder 051 is assembled with a piston rod mounting head 052, the piston rod mounting heads 052 on both sides are horizontally mounted with the electric cylinder connecting plates 053, the electric cylinder connecting plates 053 are vertically connected with the sliding block connecting plates 054 at the front side, the sliding block connecting plates 054 are mounted on the sliding blocks 055 at both sides, the sliding blocks 055 are slidingly fitted on the sliding rails 056, and the sliding block connecting plates 054 are provided with first push wheel plates 057 at the top, the first push wheel plates 057 are uniformly arranged with the first push wheels 0571 rotating in the transverse direction, and the first push wheels 0571 are used for extruding the thread clamping assembly 1.

[0051] In addition, the clamping block 13 is rotationally arranged on the clamping seat 12 by a torsion spring 14, the torsion spring 14 realizes the reset of the clamping block 13, so that the clamping block 13 presses the yarn on the clamping seat 12.

[0052] Meanwhile, the cutting assembly 2 comprises a blade matching arm 21, a blade arm 22 and a third spring 23, the blade matching arm 21 is vertically arranged on the cutting installation block 111, the blade arm 22 is rotationally matched in the middle of the blade matching arm 21, the third spring 23 is arranged between the blade matching arm 21 and the blade arm 22, and the third spring 23 realizes the reset of the rotating blade arm 22.

[0053] Among them, the bottom of the blade arm 22 is provided with a limiting part 224 for being pushed by the adjusting system 4, the middle side wall of the blade arm 22 is provided with a fourth protrusion 222, the top of the blade arm 22 is provided with a blade installation groove 223, and the blade installation groove 223 is provided with a blade 221 for cutting the yarn, the blade 221 is used for cutting the yarn, and the blade arm 22 and the clamping seat installation plate 112 are both provided with a disc spring 24.

[0054] Moreover, the bottom side wall of the blade matching arm 21 is connected with a third protrusion 211, the third spring 23 is sleeved on the third protrusion 211 and the fourth protrusion 222 at both ends, the top of the blade matching arm 21 is pressed by a blade pressing plate 212 to install a double-blade seat 213, the blade 221 is rotationally arranged in the double-blade seat 213, the double-blade seat 213 is symmetrically provided with a blade part 2132 on both sides, and the double-blade seat 213 is provided with an air slot 2131 between the blade parts 2132 on both sides for the activity of the blade 221, and the sharp blade parts 2132 on both sides of the double-blade seat 213 cooperate with the blade 221 to ensure that the yarn is completely cut.

[0055] Meanwhile, the adjusting system 4 comprises a pressure roller 41, the pressure roller 41 is rotationally arranged on the electric cylinder connecting plate 053, a supporting plate 43 is rotationally arranged below the pressure roller 41, the supporting plate 43 is rotationally arranged through a rotating seat 42 installed on the first rack 01, one end of the supporting plate 43 is pressed by the pressure roller 41, the other end is rotationally provided with a supporting roller 431, and a limiting support frame 013 is arranged on the bottom of the supporting plate 43, and the limiting support frame 013 prevents the front end of the supporting plate 43 from falling.

[0056] Moreover, the support plate 43 abuts against the push wheel connecting plate 44, the push wheel connecting plate 44 is vertically slidingly fitted on the reset frame 45, the reset frame 45 is installed below the top chain transmission block 04 of the first rack 01, the push wheel connecting plate 44 comprises a sliding plate 441, the sliding plate 441 is slidingly fitted on the reset frame 45, the top of the sliding plate 441 is fixedly connected with a second push wheel plate 442 in the transverse direction, the second push wheel plate 442 is uniformly arranged with second push wheels 443 in the transverse direction, the second push wheels 443 are used for pressing the limiting portion 224, the reset frame 45 comprises an upper mounting plate 451, the upper mounting plate 451 is installed at the bottom of the chain transmission block 04, the bottom of the upper mounting plate 451 is symmetrically and vertically provided with slide rods 452, the sliding plate 441 is slidingly fitted on the slide rods 452, the slide rods 452 are all sleeved with first springs 453, the top of the first spring 453 abuts against the upper mounting plate 451, the bottom of the first spring 453 abuts against the sliding plate 441, and the first spring 453 ensures that the push wheel connecting plate 44 can be lowered and reset.

[0057] In this embodiment, when the yarn is transmitted to the warp knitting machine, the yarn is clamped by the thread clamping assemblies 1 on the first rack 01 and the second rack 02, the piston rod of the servo cylinder 051 is extended, the piston rod mounting head 052 is matched with the cylinder connecting plate 053, the sliding block connecting plate 054 drives the sliding blocks 055 to vertically slide on the slide rails 056, the first push wheel plate 057 is in vertical contact with the two thread clamping assemblies 1, the first push wheel 0571 is in top extrusion with the clamping blocks 13, the clamping blocks 13 are rotated, the tension springs 14 are extruded, and the clamping blocks 13 and the clamping seats 12 are opened to facilitate the weft selection device to place the yarn on the two thread clamping assemblies 1.

[0058] When the weft selection device places the yarn on the two thread clamping assemblies 1, the yarn contacts the rising thread pressing assembly 3 in the falling process, in this process, the yarn presses and rotates the bending plate 33 downwards, the second spring 34 is extruded and contracted, as the yarn descends, the yarn no longer presses the bending plate 33, so that it is located below the bending plate 33, the bending plate 33 is no longer limited by the yarn, the second spring 34 releases the elastic potential energy, so as to reset the bending plate 33 and be pressed by the limiting head 32, at this time, after the yarn is placed, the infrared monitoring probe 06 monitors the placed yarn, and then automatically cuts the yarn, and commands the driving system 05 to descend to cut the yarn.

[0059] After the driving system 05 on both sides is reset, the piston rod of the servo cylinder 051 on the first rack 01 continuously shrinks and drops, the yarn cutting work is carried out, after the cylinder connecting plate 053 drops, the line pressing assembly 3 is driven to drop synchronously, so that the yarn is pressed downward by the rotating bending plate 33, ensures that the yarn is located between the blade matching arm 21 and the blade arm 22, and the cylinder connecting plate 053 drops, so that the pressing wheel 41 presses the supporting plate 43, the supporting plate 43 rotates on the rotating seat 42, so that the supporting roller 431 on one side is lifted, the supporting roller 431 pushes up the sliding plate 441, the sliding plate 441 slides on the slide rod 452, and the first spring 453 is contracted, the second push wheel plate 442 rises, the second push wheel 443 extrudes the limiting part 224, so that the line cutting assembly 2 cuts the yarn.

[0060] After the limiting part 224 is extruded and pushed up, the blade arm 22 rotates, and the third spring 23 is extruded, the blade 221 rotates into the empty slot 2131, and the blade part 2132 cuts the yarn, so that the yarn is always ensured to be cut between the blade arm 22 and the blade matching arm 21 after being pressed by the line pressing assembly 3, and the yarn is prevented from being separated from the cutting position due to shaking.

[0061] In the application, through the cooperation of the thread clamping assembly 1 and the driving system 05, automatic clamping and releasing of the yarn are realized, the operation efficiency is high, manual intervention is reduced, and the labor intensity is reduced. Under the control of the adjusting system 4, the blade 221 and the blade part 2132 of the double blade seat 213 cooperate to ensure that the yarn is accurately and completely cut, and the problems of yarn waste or uneven cutting are avoided. After the yarn is placed, the line pressing assembly 3 automatically presses down, so that the yarn is always located between the blade matching arm 21 and the blade arm 22 before cutting, the cutting failure caused by shaking of the yarn is prevented, the reliability of the system is improved, and the work of clamping the yarn and cutting the yarn can be completed by only the driving system 05, so that the synchronization and consistency of the clamping and cutting actions are ensured.

[0062] The above is only a preferred specific embodiment of the application, but the protection scope of the application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered within the protection scope of the application.

Claims

1. A chain clamping mechanism capable of automatically cutting yarn, comprising a first frame (01) and a second frame (02) arranged symmetrically, characterized in that, The first rack (01) is provided with a chain (03) through a chain wheel transmission, the chain (03) is uniformly and spacedly provided with a thread clamping assembly (1) through a chain connecting plate (031), the thread clamping assembly (1) comprises a chain connecting piece (11), one side surface of the chain connecting piece (11) is connected with the chain (03) through the chain connecting plate (031), and the other side surface of the chain connecting piece (11) is provided with a clamping seat (12) installed thereon, and the clamping seat (12) is rotatably provided with a clamping block (13) for clamping the yarn; The chain connecting piece (11) comprises a cutting line mounting block (111) for mounting a cutting line assembly (2), the cutting line mounting block (111) is provided with a clamping seat mounting plate (112) for connecting the clamping seat (12), the first rack (01) is provided below the thread clamping assembly (1) with a driving system (05) for controlling the opening and closing thereof, the driving system (05) comprises an electric cylinder connecting plate (053), the electric cylinder connecting plate (053) is provided in the middle portion with an adjusting system (4) for controlling the opening and closing of the cutting line assembly (2), the electric cylinder connecting plate (053) is vertically provided with a thread pressing mounting rack (5), a plurality of thread pressing assembly connecting plates (51) are uniformly arranged on the top of the thread pressing mounting rack (5) in the transverse direction, and the thread pressing assembly connecting plates (51) are all connected with a thread pressing assembly (3); The thread pressing assembly (3) comprises a rotating frame (31) vertically connected with the thread pressing assembly connecting plate (51), the rotating frame (31) is rotatably provided with a rotating bent plate (33), the rotating frame (31) is provided at the side wall above the rotating bent plate (33) with a limiting head (32) for abutting against the rotating bent plate (33), the rotating frame (31) is provided at one side wall with a first protruding head (311), the rotating bent plate (33) is provided at the bottom with a second protruding head (331), and the second spring (34) is squeezed between the first protruding head (311) and the second protruding head (331); The cutting line assembly (2) comprises a blade matching arm (21), a blade arm (22) and a third spring (23), the blade matching arm (21) is vertically installed on the cutting line mounting block (111), the blade arm (22) is rotatably matched in the middle portion of the blade matching arm (21), and the third spring (23) is squeezed between the blade arm (22) and the blade matching arm (21); The blade arm (22) is provided at the bottom with a limiting portion (224) for being pushed by the adjusting system (4); The adjusting system (4) comprises a pressing wheel (41), the pressing wheel (41) is rotatably arranged on the electric cylinder connecting plate (053), the pressing wheel (41) is rotatably provided below with a supporting plate (43), the supporting plate (43) is rotatable through a rotating seat (42) mounted on the first rack (01), one end of the supporting plate (43) is abutted by the pressing wheel (41), the other end is rotatably provided with a supporting roller (431), and the limiting supporting frame (013) abuts against the bottom of the supporting plate (43). The support plate (43) is abutted against the push wheel connecting plate (44) vertically slidingly fitted on the reset frame (45) installed below the chain transmission block (04) on the top of the first rack (01); The push wheel connecting plate (44) comprises a sliding plate (441) slidingly fitted on the reset frame (45), and the top of the sliding plate (441) is fixedly connected with a second push wheel plate (442) in the transverse direction, and the second push wheel plate (442) is uniformly arranged with second push wheels (443) rotatingly arranged in the transverse direction, and the second push wheels (443) are used for pressing the limiting portions (224).

2. A yarn cutting chain clamp mechanism according to claim 1, wherein The first rack (01) is symmetrically provided with first movable openings (011) for the movable electric cylinder connecting plate (053), and between the first movable openings (011) on both sides, a second movable opening (012) for the movable adjusting system (4) is arranged, and the second movable opening (012) is arranged at the side wall surface below the line cutting assembly (2) and is provided with a limiting support frame (013) for supporting the adjusting system (4), and the first rack (01) and the second rack (02) are both provided with a chain (03), a driving system (05), and a line clamping assembly (1); The first rack (01) and the second rack (02) are both symmetrically provided with chain transmission blocks (04) for cooperating with the chain (03) transmission, and the infrared monitoring probe (06) for monitoring the yarn is installed on one side of the rack body of the first rack (01) and the second rack (02), and the second rack (02) is symmetrically provided with third movable openings (021) for the movable electric cylinder connecting plate (053).

3. A yarn cutting chain clamp mechanism according to claim 2, wherein The driving system (05) comprises servo electric cylinders (051) symmetrically vertically arranged below the first movable openings (011) and the third movable openings (021), and the output end piston rod of the servo electric cylinder (051) is assembled with a piston rod mounting head (052), and the piston rod mounting heads (052) on both sides are horizontally installed with electric cylinder connecting plates (053), and the front side of the electric cylinder connecting plate (053) is vertically connected with a sliding block connecting plate (054), and the sliding block connecting plate (054) is installed on sliding blocks (055) on both sides, and the sliding blocks (055) are slidingly fitted on sliding rails (056), and the top of the sliding block connecting plate (054) is provided with a first push wheel plate (057), and the first push wheel plate (057) is uniformly arranged with first push wheels (0571) rotatingly arranged in the transverse direction, and the first push wheels (0571) are used for pressing the line clamping assembly (1).

4. The yarn cutting chain clamp mechanism of claim 1, wherein, The clamping block (13) is limitingly and rotationally arranged on the clamping seat (12) through the torsional spring (14).

5. The yarn cutting chain clamp mechanism of claim 1, wherein, The fourth protrusions (222) are arranged on the middle side wall of the blade arm (22), the blade mounting grooves (223) are arranged on the top of the blade arm (22), and the blades (221) for cutting the yarn are installed at the blade mounting grooves (223).

6. A yarn cutting chain clamp mechanism according to claim 5, wherein The bottom side wall of the blade matching arm (21) is connected with a third protrusion (211), both ends of a third spring (23) are sleeved on the third protrusion (211) and a fourth protrusion (222) respectively, the top of the blade matching arm (21) is pressed by a blade pressing plate (212) and is provided with a double-blade seat (213), and the blade (221) rotates into the double-blade seat (213). The double-blade seat (213) is provided with blade parts (2132) symmetrically on both sides, and the double-blade seat (213) is provided with a slot (2131) between the blade parts (2132) for the blade (221) to enter.

7. The yarn cutting chain clamp mechanism of claim 1, wherein, The reset frame (45) comprises an upper mounting plate (451) mounted at the bottom of the chain transmission block (04), vertical slide rods (452) are symmetrically arranged at the bottom of the upper mounting plate (451), a sliding plate (441) is slidingly fitted on the slide rods (452), and first springs (453) are sleeved on the slide rods (452), the top of the first spring (453) abuts against the upper mounting plate (451), and the bottom of the first spring (453) abuts against the sliding plate (441).

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