CN108893886B

CN108893886B - Thread passing structure of sewing machine

Info

Publication number: CN108893886B
Application number: CN201811070634.9A
Authority: CN
Inventors: 黄海; 金江华; 饶鹏
Original assignee: Hangzhou Huihong Technology Co ltd
Current assignee: Hangzhou Huihong Technology Co ltd
Priority date: 2018-09-13
Filing date: 2018-09-13
Publication date: 2020-10-30
Anticipated expiration: 2038-09-13
Also published as: CN108893886A

Abstract

The invention relates to the field of sewing machine design, and discloses a thread passing structure of a sewing machine, which comprises a machine head, wherein a thread clamping device and a tensioning assembly for keeping tension of a thread are arranged on the machine head, the tensioning assembly comprises thread hooks which are positioned at two sides of the thread clamping device and fixed with the machine head, slide blocks which are butted with the thread are connected on the thread hooks in a sliding manner, a clamping assembly for clamping the thread after the thread is broken is arranged on the thread clamping device, a detection assembly is also arranged on the thread hooks, the detection assembly comprises a conductive post fixed at the end part of the thread hook, a conductive block used for communicating the two conductive posts is fixed at the end part of the. This scheme sets up the line in the thread trapper both sides and colludes and determine module, and when the suture breaks off, the determine module presss from both sides the suture tightly to this maintains the suture tension of thread trapper one side, because the tension on the disconnection suture disappears this moment, the conducting block that corresponds conflicts with leading electrical pillar, warns part work and the position of suggestion operating personnel broken string, thereby the operating personnel of being convenient for seeks the broken string, improves work efficiency.

Description

Thread passing structure of sewing machine

Technical Field

The invention relates to the field of sewing machine design, in particular to a thread passing structure of a sewing machine.

Background

The clothes and food are the core content of people's life, and the clothing row is first. Along with the rapid development of economy, the living standard of people is increasingly improved, and the requirements of people on clothes are higher and more diversified. A sewing machine is a machine for forming one or more stitches in a material to be sewn, using one or more sewing threads, to interlace or stitch together one or more layers of material, and is the most common device in the garment processing industry. In the sewing process of the sewing machine, due to the influence of factors such as poor mechanism, difference of thickness of cloth, uneven quality of sewing threads and the like, the thread breakage phenomenon is easy to cause. If can not discover in time, the process from broken string to shutting down the adjustment can produce empty needle, not only damages the cloth, still can produce the defective products, influences work efficiency, causes economic loss. Therefore, the sewing machine is required to quickly detect the broken thread, and the operator can quickly process the broken thread conveniently. At present, chinese patent publication No. CN105937101A discloses a thread breakage detecting mechanism of a sewing machine, which includes a thread clamping device provided on the sewing machine; the wire clamping device comprises a wire clamping screw, a wire picking spring is sleeved on the wire clamping screw, and a wire picking hook is arranged at one end of the wire picking spring; the outer side of the wire picking spring is sleeved with an insulating cylinder base, a stretching window is arranged on the side wall of the insulating cylinder base, the wire picking hook stretches out of the stretching window through one section of stretching arm, a first detection piece is arranged in the stretching window, and the stretching arm is in contact with the first detection piece.

According to the technical scheme, the thread take-up spring is sleeved on a thread clamping screw of the thread clamping device, the extension arm is contacted with the first detection piece under the action of the pre-tightening torsional force of the thread take-up spring, and the first detection piece and the other end of the thread take-up spring are respectively connected into the detection circuit; when a thread exists on the thread take-up hook of the thread take-up spring, the thread can apply certain pulling force on the thread take-up hook so as to pull the extension arm to deflect and disconnect the extension arm from the first detection piece; when the suture is broken, the extending arm is restored to be in contact with the first detection piece, and the first detection piece is conducted with the other end of the take-up spring through an electric signal, so that the broken-line detection is realized. Thread passing mechanisms such as a thread clamping device and the like are installed at the head of the sewing machine, the structure is complex, thread breakage often occurs at the head, and the thread breakage detection mechanism cannot determine which side of the thread clamping device the thread breakage is located, so that operators need to search for the thread breakage in a large amount of time, and the working efficiency is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a thread passing structure of a sewing machine, which can detect the thread breakage position, is convenient for operators to find the thread breakage and improves the working efficiency.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a sewing machine crosses line structure, includes the aircraft nose, install the thread gripper on the aircraft nose and be used for keeping the tensile tensioning assembly of suture, tensioning assembly is including being located the thread gripper both sides and with the fixed line of aircraft nose is colluded, the line is colluded and is slided on the sliding connection and be connected with the slider of contradicting in order to adjust suture tension, install the tight subassembly that presss from both sides tight suture when the broken string on the thread gripper, the line is colluded and is still installed determine module, determine module is including fixing two of tip are colluded to the line and are led electrical pillar, slider end fixing has the conducting block that is used for two conducting pillars of intercommunication, it is connected with the warning part that is used for suggestion operating personnel broken string position to lead electrical.

Through adopting above-mentioned technical scheme, all set up the line in the thread clamping device both sides and collude and determine module, utilize slider and suture conflict to make the suture keep certain tension, when the suture disconnection, the clamping module is automatic to press from both sides the suture tightly on the thread clamping device, maintain the suture tension of thread clamping device one side, the tension on the suture at suture disconnection department place this moment disappears, the conducting block of the slider tip that corresponds colludes the end with the line and leads electrical pillar conflict, the position of warning part work and suggestion operating personnel broken string, thereby be convenient for operating personnel seeks the broken string, and the work efficiency is improved.

The invention is further configured that the warning part comprises a buzzer and two indicator lights which are fixed on the machine head, the buzzer is electrically connected with the conductive posts on the two wire hooks, and the two indicator lights are respectively electrically connected with the conductive posts on the two wire hooks.

Through adopting above-mentioned technical scheme, set the combination of two pilot lamps and a bee calling organ to the warning part, two pilot lamps are connected with the determine module electricity of wire holder both sides respectively, and when the suture disconnection, the wire holder presss from both sides the suture tightly, and the conducting block of one side that the disconnection department corresponds communicates the pilot lamp circuit that corresponds, and the pilot lamp is lighted this moment, and bee calling organ sounds to this realizes the prompt action, and the operating personnel of being convenient for seeks the broken string.

The wire clamping device is further arranged in such a way that the wire clamping device comprises a screw rod inserted into the machine head, a first wire pressing disc and a second wire pressing disc which are used for clamping a suture are connected on the screw rod in a sliding way, the clamping assembly is positioned between the first wire pressing disc and the second wire pressing disc, a buffer sheet used for adjusting the position of the first wire pressing disc and a limiting sheet used for limiting the movement of the second wire pressing disc are further sleeved on the screw rod, and the limiting sheet is in threaded connection with the screw rod.

Through adopting above-mentioned technical scheme, first wire pressing dish, second wire pressing dish, buffer plate and spacing piece are established to the cover on the screw rod, and the buffer plate is used for adjusting the position of first wire pressing dish, spacing piece and screw rod threaded connection to this position of restriction second wire pressing dish reaches the effect of adjusting the wire holder according to the thickness of suture, improves the suitability of wire holder.

The invention is further set that the clamping assembly comprises a cylinder positioned at two sides of the wire clamp, connecting rods hinged with the outer walls of the buffer sheet and the limiting sheet respectively are hinged at two sides of the cylinder, a moving block is connected with the inner side of the cylinder in a sliding manner, adjusting rods hinged with the outer walls of the first wire pressing disc and the second wire pressing disc respectively are hinged at two sides of the moving block, a moving groove for the moving of the adjusting rods is formed in the cylinder, a push rod matched with the end part of the cylinder in a sliding manner is fixed on the moving block, a round hole for a suture to pass through is formed in the end part of the push rod, an arc-shaped groove is formed in the push rod, and an elastic rope with two ends fixed.

Through adopting above-mentioned technical scheme, when the suture breaks off, the elasticity of elasticity rope pushes the push rod in the drum, and the movable block moves thereupon this moment, and the regulation pole of movable block both sides rotates thereupon and drives first wire pressing disc and second wire pressing disc and be close to each other to this will pass through the suture of thread trapper and press from both sides tightly, self-holding's function when realizing the broken string for the suture of one side at the non-broken string department of thread trapper keeps tension, avoids detecting element erroneous judgement, thereby ensures detecting element's accuracy.

The invention is further configured that the clamping assembly further comprises an auxiliary component, the auxiliary component comprises a first magnetic block embedded in the moving block and a second magnetic block fixed in the cylinder, and the first magnetic block and the second magnetic block are attracted magnetically.

By adopting the technical scheme, the auxiliary component consisting of the first magnetic block and the second magnetic block is arranged, and the moving block is guided to move into the cylinder by utilizing the attraction between the first magnetic block and the second magnetic block, so that the adjusting rods on two sides of the moving block can clamp a suture passing through the first wire pressing disc and the second wire pressing disc.

The invention is further arranged in that one end of the screw rod, which is exposed out of the machine head, is in threaded connection with an end cover, a compression spring is arranged between the end cover and the buffer sheet, and the compression spring is sleeved on the screw rod; and a lug for limiting the rotation of the screw is fixed at the other end of the screw.

Through adopting above-mentioned technical scheme, at screw rod outer end installation end cover, end cover and screw rod threaded connection, the rotation of screw rod has been restricted to the lug on the screw rod other end, and when the end cover rotated, the end cover was along screw rod axial displacement and extrusion compression spring, and compression spring promoted buffer plate and first wire pressing disc and removed to realize the regulation of first wire pressing disc and second wire pressing disc interval, make the trapper can be applicable to the suture of different thicknesses.

The invention is further provided that the second wire pressing disc is fixed with an annular block, and the first wire pressing disc is provided with an annular groove for the insertion of the annular block.

Through adopting above-mentioned technical scheme, fixed annular piece on the second wire pressing disc, set up the ring channel on first wire pressing disc, utilize the grafting of annular piece and ring channel with the suture centre gripping between first wire pressing disc and second line ball, further ensure clamping unit's clamping action.

The invention is further arranged in that a sliding groove for the sliding block to slide is formed in the wire hook, an expansion spring is installed in the sliding groove, one end of the expansion spring is fixed with the end part of the sliding groove, and the other end of the expansion spring is fixed with the sliding block.

Through adopting above-mentioned technical scheme, collude on line and offer the spout to install expanding spring between slider and spout tip, utilize expanding spring's elasticity to improve the tensioning degree between slider and the suture, with this sensitivity that improves detecting element.

The invention is further provided that two sides of the sliding block are integrally connected with flanges, and the lower surfaces of the flanges are abutted against the upper surface of the wire hook.

Through adopting above-mentioned technical scheme, set up the flange in slider both sides, the setting of flange has avoided the slider to break away from the spout, and the conducting block of being convenient for and leading the accurate butt joint of electrical pillar to ensure the normal work of warning part.

The invention is further arranged that a plurality of bolts are fixed on one side of the wire hook, the bolts are different in length, jacks matched with the bolts in an inserted manner are formed in the machine head, the jacks are distributed in a distributed manner along the length direction of the machine head, and the number of the jacks is more than that of the bolts.

By adopting the technical scheme, the plug pin is arranged on one side of the wire hook, the jack is arranged on the machine head, and the wire hook is fixed by utilizing the insertion matching of the jack and the plug pin; and because the lengths of the bolts are different, the distance between the wire hook and the machine head can be adjusted; and the jacks are arranged and distributed along the length direction of the machine head, so that the relative position of the wire hook on the machine head can be adjusted, the application range of the wire hook is greatly improved, and the detection assembly is convenient to install and work.

In conclusion, the invention has the following beneficial effects:

1. according to the scheme, the thread hook and the detection assembly are arranged on the two sides of the thread clamping device, when the thread is broken, the clamping assembly clamps the thread, so that tension of the thread on one side of the thread clamping device is maintained, at the moment, as the tension on the broken thread disappears, the corresponding conductive block is abutted against the conductive column, the warning component works and prompts the position of the broken thread of an operator, so that the operator can conveniently find the broken thread, and the working efficiency is improved;

2. when the suture is broken, the push rod is pushed into the cylinder by the elasticity of the elastic rope, the moving block moves along with the push rod, the adjusting rods on the two sides of the moving block rotate along with the moving block and drive the first wire pressing disc and the second wire pressing disc to approach each other, so that the suture passing through the wire clamp is clamped, the automatic clamping function during the wire breaking is realized, the tension of the suture on one side where the non-broken position of the wire clamp is located is kept, the erroneous judgment of the detection assembly is avoided, and the accuracy of the detection assembly is ensured;

3. a plug pin is arranged on one side of the wire hook, a jack is arranged on the machine head, and the wire hook is fixed by the insertion and matching of the jack and the plug pin; and because the lengths of the bolts are different, the distance between the wire hook and the machine head can be adjusted; and the jacks are arranged and distributed along the length direction of the machine head, so that the relative position of the wire hook on the machine head can be adjusted, the application range of the wire hook is greatly improved, and the detection assembly is convenient to install and work.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

fig. 2 is a schematic sectional structure of the wire holder in embodiment 1;

FIG. 3 is a schematic view of the structure of the thread hook in example 1;

FIG. 4 is a schematic sectional view of a clamping assembly in accordance with embodiment 1;

FIG. 5 is a schematic view of the structure of the linear hook in example 2.

In the figure: 1. a machine head; 11. a jack; 2. a wire clamping device; 21. an end cap; 211. a threaded hole; 22. a screw; 221. a bump; 23. a compression spring; 24. a first wire pressing disc; 241. an annular groove; 25. a second wire pressing disc; 251. a ring block; 26. a buffer sheet; 27. a limiting sheet; 3. a tension assembly; 31. a wire hook; 32. a chute; 33. a tension spring; 34. a slider; 341. a flange; 35. a bolt; 4. a detection component; 41. a conductive post; 42. a conductive block; 43. a warning component; 431. a buzzer; 432. an indicator light; 5. a clamping assembly; 51. a cylinder; 511. a moving groove; 52. a connecting rod; 53. a moving block; 531. adjusting a rod; 54. an auxiliary component; 541. a first magnetic block; 542. a second magnetic block; 55. a push rod; 551. a circular hole; 552. an arc-shaped slot; 56. an elastic cord.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in figure 1, the thread passing structure of the sewing machine comprises a machine head 1, wherein a thread clamping device 2, a tensioning assembly 3 and a detection assembly 4 are mounted on the machine head 1. The wire clamping device 2 is installed at a position below the machine head 1, and as shown in a combined figure 2, the wire clamping device 2 comprises an end cover 21, a screw rod 22, a compression spring 23, a first wire pressing disc 24, a second wire pressing disc 25, a buffer sheet 26 and a limiting sheet 27. One end of the screw 22 is inserted into the handpiece 1, and the end of the screw 22 is fixed with a projection 221, the projection 221 projects from the circumferential surface of the screw 22, and the handpiece 1 is internally provided with a groove (not shown) for clamping the projection 221, and is used for limiting the rotation of the screw 22. The end cover 21 is installed at one end of the screw 22 exposed outside the machine head 1, a threaded hole 211 is formed in the middle of the end cover 21, and the threaded hole 211 is in threaded connection with the screw 22, so that the end cover 21 and the screw 22 are fixed. The buffer piece 26 is sleeved on the screw 22 and connected with the screw 22 in a sliding manner, and the compression spring 23 is sleeved on the screw 22 and is positioned between the buffer piece 26 and the end cover 21. The first wire pressing disc 24 is positioned on one side of the buffer sheet 26 close to the machine head 1 and is abutted against the buffer sheet 26, and the first wire pressing disc 24 is connected with the screw 22 in a sliding manner; the second wire pressing disc 25 is positioned on one side of the first wire pressing disc 24 close to the handpiece 1, and the second wire pressing disc 25 is connected with the screw 22 in a sliding manner. The limiting sheet 27 is positioned on one side of the second wire pressing disc 25 close to the machine head 1, and the limiting sheet 27 is in threaded connection with the screw 22 so as to be fixed on the screw 22. When the end cover 21 rotates, the end cover 21 moves axially along the screw 22 and presses the compression spring 23, and the compression spring 23 pushes the buffer sheet 26 and the first wire pressing disc 24 to move, so that the adjustment of the distance between the first wire pressing disc 24 and the second wire pressing disc 25 is realized, and the wire clamp 2 can be suitable for sutures with different thicknesses.

As shown in fig. 3, the tension assembly 3 includes a wire hook 31, a slide groove 32, a telescopic spring 33, a slider 34, and a latch 35. The wire hooks 31 are rectangular frame structures, the number of the wire hooks is two, and the two wire hooks 31 are respectively positioned on two sides of the upper part of the wire clamping device 2. The chute 32 is arranged in the middle of the thread hook 31, and the thread hook 31 is vertically penetrated so as to facilitate the thread to pass through. The length direction of the sliding groove 32 is consistent with the length direction of the wire hook 31, and the sliding block 34 is connected in the sliding groove 32 in a sliding mode. The slider 34 interferes with the suture, thereby maintaining tension on the suture. Flanges 341 are integrally connected to both side edges of the slider 34, and the flanges 341 abut against the upper surface of the hook 31. The expansion spring 33 is installed in the slide groove 32, and one end thereof is fixed to the end of the slide groove 32 and the other end thereof is fixed to the slider 34. The bolts 35 are fixed on one side of the wire hook 31 facing the handpiece 1, a plurality of bolts 35 are provided, the plurality of bolts 35 are different in length, and are distributed along the length direction of the wire hook 31 from long to short and then from short to long. The machine head 1 is provided with a plurality of jacks 11 so that the bolts 35 can be inserted into the jacks 11, the jacks 11 are distributed in a row along the length direction of the machine head 1, and the number of the jacks 11 is more than that of the bolts 35. The distance between the wire hook 31 and the machine head 1 can be adjusted due to different lengths of the bolts 35; the insertion holes 11 are distributed along the length direction of the machine head 1 in an arrayed manner, so that the relative position of the wire hook 31 on the machine head 1 can be adjusted, and the application range of the wire hook 31 is greatly improved.

As shown in fig. 1 and 3, the detection assembly 4 includes a conductive post 41, a conductive block 42, and an alarm part 43. The conductive posts 41 are mounted at one end of the wire hook 31, and two conductive posts 41 are fixed at the end of each wire hook 31. The conductive block 42 is fixed on one side of the sliding block 34 facing the conductive column 41, and when the sewing line is abutted against the sliding block 34, the expansion spring 33 is compressed; when the sewing line is broken, the expansion spring 33 pushes the slider 34 to slide towards the conductive post 41, and when the conductive block 42 abuts against the conductive post 41, the electrical connection between the two conductive posts 41 is successful. The warning part 43 includes a buzzer 431 and two indicator lights 432, the buzzer 431 is embedded in the top of the handpiece 1, the buzzer 431 is electrically connected with the conductive posts 41, when the conductive posts 41 on any wire hook 31 are communicated, the buzzer 431 sounds, the number of the indicator lights 432 is two, the indicator lights are embedded in the top of the handpiece 1 and located on one side of the buzzer 431, and the two indicator lights 432 are electrically connected with the conductive posts 41 on the two wire hooks 31. When the conductive block 42 of one wire hook 31 abuts against the conductive post 41, the corresponding indicator light 432 is energized, and the indicator light 432 emits light.

As shown in fig. 2, the gripper 2 is further provided with a clamping assembly 5, and as shown in fig. 4, the clamping assembly 5 includes a cylinder 51, a connecting rod 52, a moving block 53, an adjusting rod 531, an auxiliary member 54, a push rod 55 and an elastic cord 56. The two cylinders 51 are provided at both sides of the wire clamper 2, respectively, and have a hollow interior in which the moving block 53 and the auxiliary member 54 are installed. The links 52 are installed at both sides of the cylinder 51 for supporting the cylinder 51. One end of a connecting rod 52 at one side of the cylinder 51 is hinged with the outer wall of the cylinder 51, and the other end is hinged with the side wall of the buffer sheet 26; one end of a connecting rod 52 at the other side of the cylinder 51 is hinged with the outer wall of the cylinder 51, and the other end is hinged with the side wall of the limiting sheet 27. The moving block 53 has a circular plate-like structure and is slidably connected to the cylinder 51. The adjusting rods 531 are hinged to two sides of the moving block 53, and the adjusting rods 531 on two sides of the moving block 53 are hinged to the side walls of the first wire pressing disc 24 and the second wire pressing disc 25 respectively. The cylinder 51 is further provided with a moving groove 511 on a side wall thereof for moving the adjusting lever 531. The auxiliary component 54 includes a first magnetic block 541 and a second magnetic block 542, the first magnetic block 541 is embedded in the moving block 53, the second magnetic block 542 is fixed at one end of the cylinder 51 far away from the wire clamper 2, and the first magnetic block 541 and the second magnetic block 542 are magnetically attracted. The push rod 55 is a cylindrical rod-shaped structure, one end of the push rod is fixed with the moving block 53, the other end of the push rod penetrates through the cylinder 51 and extends to the outer side of the cylinder 51, and a small hole for the push rod 55 to penetrate out is formed in the cylinder 51. One end of the push rod 55 extending out of the cylinder 51 is provided with a round hole 551, and the round hole 551 is used for a suture to pass through; the end portion of the push rod 55 is further provided with an arc-shaped groove 552, two ends of the arc-shaped groove 552 extend to two sides of the push rod 55, the elastic rope 56 penetrates through the groove, and two ends of the elastic rope 56 are fixed with the end portion of the cylinder 51. When the suture is disconnected, the tension on the suture disappears, the elastic rope 56 pushes the push rod 55 to slide towards the cylinder 51, at the moment, the moving block 53 moves towards the second magnetic block 542 under the action of the pushing force of the push rod 55 and the attraction force between the first magnetic block 541 and the second magnetic block 542, and the adjusting rods 531 at the two sides of the moving block 53 drive the first wire pressing disc 24 and the second wire pressing disc 25 to approach each other, so that the suture passing through the first wire pressing disc 24 and the second wire pressing disc 25 is clamped tightly.

When the sewing machine is used, a sewing thread only needs to sequentially pass through the thread hook 31 on one side of the thread clamping device 2, the push rod 55 on the other side of the thread clamping device 2 and the thread hook 31 on the other side of the thread clamping device 2, when the sewing machine works normally, the tension on the sewing thread compresses the telescopic spring 33, and the conductive column 41 is separated from the conductive block 42; at the same time, the suture exposes push rod 55 outside of cylinder 51 and stretches elastic cord 56. When the suture on one side of the wire clamp 2 is broken, the corresponding push rod 55 drives the moving block 53 to slide inwards under the action of the elastic rope 56, so that the first wire pressing disc 24 and the second wire pressing disc 25 are driven to approach each other, and the suture passing between the first wire pressing disc 24 and the second wire pressing disc 25 is clamped. After the suture is clamped tightly, the suture at one side of the broken line position of the thread clamping device 2 loses tension, the suture at the other side does not lose tension, the telescopic spring 33 at one side of the lost tension enables the conductive block 42 to be abutted to the conductive column 41, the corresponding indicating lamp 432 is turned on, the buzzer 431 sounds, the prompting effect is achieved, the areas on the two sides of the thread clamping device 2 are distinguished, operators can conveniently find the broken line, and the working efficiency is improved.

Example 2: as shown in fig. 5, the difference between this embodiment and embodiment 1 is the arrangement of the plugs 35 on one side of the wire hook 31, in this embodiment, the plugs 35 are arranged from short to long and then from long to short along the length direction of the wire hook 31.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a sewing machine crosses line structure, includes aircraft nose (1), install thread trapper (2) and be used for keeping the tensile tensioning assembly (3) of suture on aircraft nose (1), characterized by: tensioning assembly (3) including being located thread clamp (2) both sides and with the fixed line of aircraft nose (1) is colluded (31), the line is colluded and is gone up the sliding connection and be connected with slider (34) of contradicting in order to adjust the tension of suture on (31), install clamping component (5) of pressing from both sides tight suture when the broken string on thread clamp (2), still install on the line is colluded (31) and is detected subassembly (4), detection subassembly (4) are including fixing two lead electrical pillar (41) of colluding (31) tip, slider (34) end fixing has conducting block (42) that are used for two lead electrical pillar (41) of intercommunication, it is connected with warning part (43) that are used for suggestion operating personnel broken string position to lead electrical pillar (41), thread clamp (2) include with screw rod (22) that aircraft nose (1) are pegged graft, sliding connection has first clamping line dish (24) and second clamping line dish (25) on screw rod (22), the clamping assembly (5) is positioned between a first wire pressing disc (24) and a second wire pressing disc (25), the screw rod (22) is further sleeved with a buffer sheet (26) for adjusting the position of the first wire pressing disc (24) and a limiting sheet (27) for limiting the movement of the second wire pressing disc (25), the limiting sheet (27) is in threaded connection with the screw rod (22), the clamping assembly (5) comprises cylinders (51) positioned on two sides of the wire clamp (2), two sides of each cylinder (51) are hinged with connecting rods (52) respectively hinged with the buffer sheet (26) and the limiting sheet (27), the cylinders (51) are connected with moving blocks (53) in a sliding mode, two sides of each moving block (53) are hinged with adjusting rods (531) respectively hinged with the outer walls of the first wire pressing disc (24) and the second wire pressing disc (25), and the cylinders (51) are provided with moving grooves (511) for moving the adjusting rods (531), a push rod (55) which is matched with the end part of the cylinder (51) in a sliding manner is fixed on the moving block (53), a round hole (551) for a suture to pass through is formed in the end part of the push rod (55), an arc-shaped groove (552) is formed in the push rod (55), and an elastic rope (56) with two ends fixed with the end part of the cylinder (51) penetrates through the arc-shaped groove (552).

2. A sewing machine thread passing structure according to claim 1, wherein: the warning part (43) comprises a buzzer (431) and two indicator lamps (432) which are fixed on the machine head (1), the buzzer (431) is electrically connected with the conductive columns (41) on the two wire hooks (31), and the indicator lamps (432) are respectively electrically connected with the conductive columns (41) on the two wire hooks (31).

3. A sewing machine thread passing structure according to claim 1, wherein: the clamping assembly (5) further comprises an auxiliary component (54), the auxiliary component (54) comprises a first magnetic block (541) embedded in the moving block (53) and a second magnetic block (542) fixed in the cylinder (51), and the first magnetic block (541) and the second magnetic block (542) are magnetically attracted.

4. A sewing machine thread passing structure according to claim 1, wherein: an end cover (21) is connected to one end, exposed out of the machine head (1), of the screw rod (22) in a threaded mode, a compression spring (23) is installed between the end cover (21) and the buffer sheet (26), and the compression spring (23) is sleeved on the screw rod (22); and a lug (221) for limiting the rotation of the screw rod (22) is fixed at the other end of the screw rod (22).

5. A sewing machine thread passing structure according to claim 1, wherein: an annular block (251) is fixed on the second wire pressing disc (25), and an annular groove (241) for inserting the annular block (251) is formed in the first wire pressing disc (24).

6. A sewing machine thread passing structure according to claim 1, wherein: offer the confession on the line colludes (31) spout (32) that slider (34) slided, install expanding spring (33) in spout (32), expanding spring (33) one end and spout (32) end fixing, the other end is fixed with slider (34).

7. A sewing machine thread passing structure according to claim 6, wherein: flanges (341) are integrally connected to two sides of the sliding block (34), and the lower surfaces of the flanges (341) are abutted to the upper surface of the wire hook (31).

8. A sewing machine thread passing structure according to claim 1, wherein: line colludes (31) one side and is fixed with a plurality of bolts (35), and is a plurality of bolt (35) differ in size, seted up on aircraft nose (1) with bolt (35) grafting complex jack (11), jack (11) are followed aircraft nose (1) length direction arranges and distributes, just jack (11) quantity is more than bolt (35) quantity.