A device for automatically connecting lead needle and fiber

Abstract

The present application provides a device for automatically connecting a wire needle and a fiber, comprising: a fiber connecting mechanism, a diamond hole leveling mechanism, a synchronous belt conveyor, a wire needle alignment mechanism, a wire needle and a frame; the wire needle alignment mechanism and the diamond hole leveling mechanism are respectively arranged on both sides of the synchronous belt conveyor; the fiber connecting mechanism and the diamond hole leveling mechanism are placed side by side on the same side of the synchronous belt conveyor, the wire needle is placed in a V-shaped block of the synchronous belt conveyor, and the frame is used to install and fix all mechanisms.

Description

Technical Field

[0001] The present application relates to the technical field of weaving machinery, and in particular to a device for automatically connecting a thread guide needle and a fiber. Background Art

[0002] Fine-woven puncture fabrics have good overall structural properties and ultra-high volume fractions. Their composite materials have excellent thermal insulation and resistance to ion erosion. They are widely used in key components in aerospace and other fields as anti-ablation composite materials.

[0003] At present, the displacement of Z-direction fibers in the production process of fine-woven puncture fabrics is a key process in the puncture process, and the key factor affecting the efficiency of Z-direction fiber displacement is the connection between the lead needle and the fiber.

[0004] At present, the connection between the lead needle and the fiber in the production process is mainly done by manually inserting the replacement fiber into the lead needle nose. Due to the extremely small size of the needle nose, manual operation is difficult and labor-intensive, resulting in low production efficiency and a long product production cycle. Therefore, it is urgent to develop a set of automatic connection devices for lead needles and fibers. Summary of the invention

[0005] The present application provides a device for automatically connecting a lead needle and a fiber, which can be used to solve the technical problem of the difficulty of manual operation in the prior art.

[0006] The present application provides a device for automatically connecting a lead needle and a fiber, the device comprising:

[0007] Fiber connection mechanism, diamond hole leveling mechanism, synchronous belt conveyor, lead needle alignment mechanism, lead needle and frame;

[0008] A wire pin alignment mechanism and a diamond hole leveling mechanism are respectively provided on both sides of the synchronous belt conveyor;

[0009] The fiber connection mechanism and the diamond hole leveling mechanism are placed side by side on the same side of the synchronous belt conveyor, the wire guide needle is placed in the V-block of the synchronous belt conveyor, and the frame is used to install and fix all the mechanisms.

[0010] Optionally, the fiber connection mechanism includes a wire feeding mechanism and a steel ring forming mechanism;

[0011] The wire feeding mechanism includes 4 rubber-coated rollers, an adjustment mechanism and a wire feeding mechanism housing;

[0012] The rubber-coated roller is arranged outside the housing of the wire feeding mechanism;

[0013] The rubber-coated rollers are arranged in groups of two, in the left and right directions;

[0014] Among the two sets of rubber-coated rollers, the lower roller is the active roller and the upper roller is the passive roller;

[0015] The wire feeding mechanism and the steel ring forming mechanism are placed side by side. The stainless steel wire moves forward into the steel ring forming mechanism under the drive of the two sets of rollers of the wire feeding mechanism. The stainless steel wire passes through the needle hole of the lead needle and automatically forms a loop around the fiber under the guidance of the guide groove in the steel ring forming mechanism, thereby realizing the automatic connection between the lead needle and the fiber.

[0016] The adjustment mechanism includes an adjustment block, an adjustment bolt, a cover plate and a locking nut. The adjustment bolt passes through the locking nut and is connected to the adjustment block in a pin-type manner. The adjustment block is embedded in the front panel through a groove design.

[0017] The wire feeding mechanism housing comprises an upper panel, two sets of side panels, a front panel, a bottom plate and two sets of cover plates arranged on the upper panel.

[0018] Each cover plate corresponds to an adjustment block;

[0019] The cover is installed on the upper panel. A threaded hole matching the adjusting bolt is provided in the center of the cover. The adjusting bolt is screwed into the threaded hole of the cover during installation. The adjusting block can be driven to move up and down to adjust its position by rotating the adjusting bolt, and finally the adjusting bolt is locked by the locking bolt.

[0020] Optionally, the steel ring forming mechanism includes: a stainless steel wire forming guide groove, a wire cutting cylinder mounting plate, a wire cutting cylinder, an extrusion cylinder, a fixing frame and an extrusion push plate;

[0021] One end of the stainless steel wire forming guide groove is in a quarter arc shape, and the straight portion of the stainless steel wire forming guide groove fits with the wire cutting cylinder mounting plate;

[0022] The wire cutting cylinder is installed on the wire cutting cylinder installation plate, the extrusion cylinder is installed on the fixing frame, and an extrusion push plate is arranged at the front end of the extrusion cylinder;

[0023] The extrusion cylinder is close to the arc end of the stainless steel wire forming guide groove, and an extrusion push plate is provided;

[0024] The stainless steel wire forming guide groove provides guidance for the stainless steel wire, allowing it to be automatically wound into a round shape;

[0025] When the stainless steel wire is wound into a circular loop, the wire feeding mechanism stops feeding the wire, the wire cutting cylinder cuts off the end of the stainless steel wire loop, and the extrusion push plate extrudes the stainless steel wire loop into a flat shape under the push of the extrusion cylinder.

[0026] Optionally, the diamond hole leveling mechanism comprises: a U-shaped posture holder, which is connected to the base through two connecting plates and two guide pillars;

[0027] The two guide pillars are parallel to each other, and a connecting plate and a base are respectively provided at both ends;

[0028] The connecting plate clamps the U-shaped posture holder;

[0029] A downward pressure cylinder is provided at the end of the U-shaped posture retaining frame; an upper pressure block is provided at the end of the downward pressure cylinder close to the connecting plate;

[0030] A notch is provided at the other end of the U-shaped posture holder for passing a diamond-shaped pinhole;

[0031] When the lead needle is transported by the synchronous belt conveyor to be flush with the lower pressure block of the diamond hole leveling mechanism, the lead needle alignment mechanism pushes the diamond hole of the lead needle into the bottom of the lower pressure block, and the lower pressure cylinder drives the lower pressure block to move downward to adjust the posture of the diamond hole to be parallel to the ground. The lead needle alignment mechanism pushes the lead needle again until the diamond hole of the lead needle enters the U-shaped posture retaining frame. Finally, the synchronous belt conveyor continues to transport the lead needle forward until the diamond hole of the lead needle moves to the notch at the end of the U-shaped posture retaining frame.

[0032] Optionally, the synchronous belt conveyor includes two sets of aluminum profile brackets; the two sets of aluminum profile brackets are connected to each other through three cross beams;

[0033] Four connecting angle brackets are set on the inner side of the aluminum profile bracket;

[0034] Two sets of transmission shaft mounting brackets are set at both ends of the aluminum profile bracket;

[0035] Two sets of synchronous pulleys are fixed on the mounting frame through the transmission shaft and the transmission shaft;

[0036] A reducer module is provided on one side of the transmission shaft, and a servo motor is installed at the reducer module;

[0037] There are two sets of synchronous belts on the synchronous belt pulley;

[0038] There are multiple sets of V-groove fixing blocks on the synchronous belt;

[0039] The power of the servo motor is transmitted to the transmission shaft through the reducer module. The transmission shaft drives the synchronous belt pulley to drive the synchronous belt to rotate. The V-groove fixing block on the synchronous belt is driven forward to realize the transmission of the lead needle.

[0040] Optionally, the lead pin alignment mechanism includes a linear module;

[0041] The linear module is connected to the mounting base plate through two I-shaped bases;

[0042] The servo motor is installed on the side of the linear module away from the aluminum profile bracket;

[0043] A connecting horizontal plate is arranged on the upper side of the linear module to reinforce the linear module;

[0044] The mounting plate is connected to the linear module;

[0045] A push pin plate is arranged on the upper side of the mounting plate, and a sensor is arranged on the push pin plate;

[0046] When the sensor of the lead needle alignment mechanism detects the arrival of the lead needle, it sends a pulse signal, the synchronous belt conveyor stops running, and the linear module moves forward driven by the servo motor. The lead needle is pushed to the appropriate position by the needle pusher plate, which facilitates the diamond hole leveling mechanism to adjust the lead needle posture. When the posture adjustment is completed, the needle pusher plate pushes the lead needle again to make the diamond hole of the lead needle enter the U-shaped posture retaining frame.

[0047] Optionally, the lead needle includes a diamond-shaped pinhole and a needle body; the material of the diamond-shaped pinhole is an elastic material.

[0048] Optionally, the rack includes a left frame, a main frame, and a right frame from one side to the other;

[0049] The left frame is in a stepped shape and includes a first mounting plate for fixing the diamond hole leveling mechanism; and a second mounting plate for fixing the fiber connection mechanism.

[0050] The present application has a simple structure, and the coordination and connection between multiple structures are very precise and smooth, which can meet the automatic connection between the lead needle and the fiber, and the mechanism can realize fully automatic operation, greatly improving work efficiency.

[0051] This application can adapt to different types of fibers, such as carbon fiber, quartz fiber, etc., and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 One of the structural diagrams provided in the embodiment of the present application;

[0053] Figure 2 A schematic diagram of the structure of a diamond hole leveling mechanism provided in an embodiment of the present application;

[0054] Figure 3 Provided in the embodiments of this application Figure 2 A partial enlarged view of part A;

[0055] Figure 4 A steel ring forming mechanism in a fiber connection mechanism provided in an embodiment of the present application;

[0056] Figure 5 A V-groove fixing block provided in an embodiment of the present application;

[0057] Figure 6 A rhombus-shaped hole lead pin provided in an embodiment of the present application;

[0058] Figure 7 A schematic diagram of the force deformation of the lead pin provided in the embodiment of the present application;

[0059] Figure 8 The left frame of the aluminum profile provided in the embodiment of the present application;

[0060] Fig. 9 The second structural diagram provided for the embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0062] Let's first combine Figure 1 The possible system architecture applicable to the embodiments of the present application is introduced.

[0063] The present application provides a device for automatically connecting a lead needle and a fiber, the device comprising:

[0064] Fiber connection mechanism 1, diamond hole leveling mechanism 2, synchronous belt conveyor 3, lead needle alignment mechanism 4, lead needle 5 and frame 6;

[0065] A wire pin alignment mechanism 4 and a diamond hole leveling mechanism 2 are respectively arranged on both sides of the synchronous belt conveyor 3;

[0066] The fiber connection mechanism 1 and the diamond hole leveling mechanism 2 are placed side by side on the same side of the synchronous belt conveyor, the wire guide needle 5 is placed in the V-block of the synchronous belt conveyor 3, and the frame 6 is used to install and fix all the mechanisms.

[0067] The fiber connection mechanism 1 includes a wire feeding mechanism and a steel ring forming mechanism;

[0068] The wire feeding mechanism includes four rubber-coated rollers 1105, an adjustment mechanism and a wire feeding mechanism housing;

[0069] The rubber-coated roller 1105 is arranged outside the housing of the wire feeding mechanism;

[0070] The rubber-coated rollers 1105 are arranged in pairs in a group in the left-right direction;

[0071] Among the two sets of rubber-coated rollers, the lower roller is the active roller and the upper roller is the passive roller;

[0072] The wire feeding mechanism and the steel ring forming mechanism are placed in parallel. The stainless steel wire moves forward into the steel ring forming mechanism under the drive of the two sets of rollers 1105 of the wire feeding mechanism. The stainless steel wire passes through the needle hole of the lead needle and automatically forms a loop around the fiber under the guidance of the guide groove in the steel ring forming mechanism, thereby realizing the automatic connection between the lead needle and the fiber.

[0073] The adjustment mechanism includes an adjustment block 1101, an adjustment bolt 1102, a cover plate 1103 and a locking nut 1104. The adjustment bolt 1102 passes through the locking nut 1104 and is connected to the adjustment block 1101 in a pin-type manner. The adjustment block 1101 is embedded in the front panel through a groove design.

[0074] The wire feeding mechanism housing includes an upper panel 1108, two sets of side panels 1109, a front panel 1106, a bottom plate 1107 and two sets of cover plates 1103 arranged on the upper panel 1108.

[0075] Each cover plate 1103 corresponds to an adjustment block 1101;

[0076] The cover plate 1103 is installed on the upper panel, and a threaded hole matching the adjusting bolt 1102 is provided in the center of the cover plate. When installing, the adjusting bolt 1102 is screwed into the threaded hole of the cover plate; by rotating the adjusting bolt 1102, the adjusting block can be driven to move up and down to adjust its position, and finally the adjusting bolt 1102 is locked by the locking bolt.

[0077] The steel ring forming mechanism includes: a stainless steel wire forming guide groove 1202, a wire cutting cylinder mounting plate 1203, a wire cutting cylinder 1204, an extrusion cylinder 1207, a fixing frame 1209 and an extrusion push plate 1206;

[0078] One end of the stainless steel wire forming guide groove 1202 is in a quarter arc shape, and the straight portion of the stainless steel wire forming guide groove 1202 fits with the wire cutting cylinder mounting plate 1203;

[0079] A wire cutting cylinder 1204 is provided at one end of the wire cutting cylinder mounting plate 1203;

[0080] A fixing frame 1209 is vertically arranged in the middle of the wire cutting cylinder mounting plate 1203;

[0081] The fixing frame 1206 is provided with an extrusion cylinder 1207;

[0082] The extrusion cylinder 1207 is close to the arc end of the stainless steel wire forming guide groove 1202, and an extrusion push plate 1206 is provided;

[0083] The stainless steel wire forming guide groove 1202 provides guidance for the stainless steel wire so that it can be automatically wound into a round shape; the wire cutting cylinder 1204 is installed on the wire cutting cylinder mounting plate 1203, the extrusion cylinder 1207 is installed on the fixing frame 1204, and an extrusion push plate is provided at the front end of the extrusion cylinder 1207;

[0084] When the stainless steel wire is wound into a circular loop, the wire feeding mechanism stops feeding the wire, the wire cutting cylinder 1204 cuts off the end of the stainless steel wire loop, and the extrusion push plate squeezes the stainless steel wire loop into a flat shape under the push of the extrusion cylinder.

[0085] The diamond hole leveling mechanism 2 comprises: a U-shaped posture holder 201, which is connected to a base 206 via two connecting plates 205 and two guide pillars 207;

[0086] The two guide pillars 207 are parallel to each other, and a connecting plate 205 and a base 206 are respectively disposed at both ends;

[0087] The connecting plate 205 clamps the U-shaped posture holder 201;

[0088] A downward pressure cylinder 202 is provided at the end of the U-shaped posture holder 201; an upper pressure block 203 is provided at the end of the downward pressure cylinder 202 close to the connecting plate 205;

[0089] A notch is provided at the other end of the U-shaped posture holder 201 for passing a diamond-shaped pinhole;

[0090] When the lead needle 5 is transported by the synchronous belt conveyor 3 to be flush with the lower pressure block of the diamond hole leveling mechanism 2, the lead needle alignment mechanism 4 pushes the diamond hole of the lead needle to enter directly under the lower pressure block, and the lower pressure cylinder 202 drives the lower pressure block to move downward to adjust the posture of the diamond hole to be parallel to the ground. The lead needle alignment mechanism 4 pushes the lead needle 5 again until the diamond hole of the lead needle enters the U-shaped posture retaining frame 201, and finally the synchronous belt conveyor 3 continues to convey the lead needle 5 forward until the diamond hole of the lead needle 5 moves to the notch at the end of the U-shaped posture retaining frame 201.

[0091] The synchronous belt conveyor 3 includes two sets of aluminum profile brackets 310; the two sets of aluminum profile brackets 310 are connected to each other through three cross beams 307;

[0092] Four connecting angle brackets 303 are provided on the inner side of the aluminum profile bracket 310;

[0093] Two sets of transmission shaft mounting brackets 309 are provided at both ends of the aluminum profile bracket 310;

[0094] Two sets of synchronous pulleys 306 are fixed on the mounting frame 309 through the auxiliary transmission shaft 308 and the main transmission shaft 301;

[0095] A reducer module 302 is provided on one side of the main transmission shaft 301, and a servo motor 311 is installed at the reducer module 302;

[0096] Two sets of synchronous belts 304 are mounted on the synchronous belt pulley 306;

[0097] Multiple groups of V-groove fixing blocks are arranged on the synchronous belt 304; the V-groove fixing blocks adopt a V-shaped opening design, which is convenient for placing the lead needle. The bottom of the V-groove fixing block is connected with a rectangular groove of a certain length to prevent the steel needle from falling out due to equipment vibration.

[0098] The power of the servo motor is transmitted to the transmission shaft through the reducer module. The main transmission shaft 301 drives the synchronous pulley 306 to drive the synchronous belt 304 to rotate, and the V-groove fixing block on the synchronous belt is driven to move forward to realize the transmission of the lead needle.

[0099] The lead pin alignment mechanism 4 includes a linear module 403;

[0100] The linear module 403 is connected to the mounting base plate 401 through two I-shaped bases 402;

[0101] A servo motor 408 is installed on the side of the linear module 403 away from the aluminum profile bracket 310;

[0102] A connecting horizontal plate 404 is provided on the upper side of the linear module 403 to reinforce the linear module;

[0103] The mounting plate 405 is connected to the linear module 403;

[0104] A pin push plate 406 is provided on the upper side of the mounting plate 405, and a sensor 407 is provided on the pin push plate 406;

[0105] When the sensor of the lead needle alignment mechanism 4 detects the arrival of the lead needle, it sends a pulse signal, the synchronous belt conveyor stops running, and the linear module 403 moves forward driven by the servo motor, and pushes the lead needle to a suitable position through the needle push plate 406, so that the diamond hole leveling mechanism 2 can adjust the lead needle posture. When the posture adjustment is completed, the needle push plate 406 pushes the lead needle again to make the diamond hole of the lead needle enter the U-shaped posture retaining frame.

[0106] The lead needle 5 comprises a rhombus-shaped needle hole and a needle body; the material of the rhombus-shaped needle hole is elastic material.

[0107] like Figure 7 As shown in Figures 7(a) to 7(b), the deformation diagrams of the diamond needle under stress state.

[0108] The frame 6 includes a left frame, a main frame, and a right frame from one side to the other;

[0109] The left side frame is in a stepped shape, and includes a first mounting plate 619 for fixing the diamond hole leveling mechanism 2 ; and a second mounting plate 617 for fixing the fiber connecting mechanism 1 .

[0110] The left frame includes two 613 columns and four 612 columns, all of which are arranged vertically. Two first connecting cross bars 611 are arranged in the left and right directions of the left frame, six second connecting cross bars 615 are arranged in the front and rear directions, two third connecting cross bars 614 are arranged in the middle of the left frame, and two fourth connecting cross bars 615 are arranged in the upper part of the left frame. In addition, a mounting plate 619 is arranged on the upper part of the left frame to facilitate the fixed installation of the diamond hole leveling mechanism. A mounting plate 617 is arranged in the middle of the left frame, and triangular mounting blocks 616 are arranged on the mounting plates 617 and 619 to facilitate the fixing of the fiber connection mechanism. The main frame includes four rectangular beams 624, and four first columns 622 and two second columns 623 are arranged in the upper and lower directions of the equipment. At the same time, all parts of the main frame are connected as a whole through four beams 621. The right frame includes two beams 633, and two columns 631 are arranged below the beams. An oblique support beam 632 is provided between the cross beam 633 and the column 631 .

[0111] The present application has a simple structure, and the coordination and connection between multiple structures are very precise and smooth, which can meet the automatic connection between the lead needle and the fiber, and the mechanism can realize fully automatic operation, greatly improving work efficiency.

[0112] This application can adapt to different types of fibers, such as carbon fiber, quartz fiber, etc., and has strong adaptability.

[0113] The above-described embodiments of the present application do not constitute a limitation on the protection scope of the present application.

Claims

1. A device for automatically connecting a lead needle and a fiber, characterized in that: The device comprises: A fiber connection mechanism (1), a diamond hole leveling mechanism (2), a synchronous belt conveyor (3), a lead needle alignment mechanism (4), a lead needle (5) and a frame (6); A wire needle alignment mechanism (4) and a diamond hole leveling mechanism (2) are respectively arranged on both sides of the synchronous belt conveyor (3); The fiber connection mechanism (1) and the diamond hole leveling mechanism (2) are placed side by side on the same side of the synchronous belt conveyor, the thread guide needle (5) is placed in the V-shaped block of the synchronous belt conveyor (3), and the frame (6) is used to install and fix all the mechanisms; The fiber connection mechanism (1) comprises a wire feeding mechanism and a steel ring forming mechanism; The wire feeding mechanism comprises four rubber-coated rollers (1105), an adjustment mechanism and a wire feeding mechanism housing; The rubber-coated roller (1105) is arranged outside the housing of the wire feeding mechanism; The rubber-coated rollers (1105) are arranged in pairs in a group and arranged in sequence in the left-right direction; The wire feeding mechanism and the steel ring forming mechanism are placed side by side; The adjustment mechanism comprises an adjustment block (1101), an adjustment bolt (1102), a cover plate (1103) and a locking nut (1104); the adjustment bolt (1102) passes through the locking nut (1104) and is connected to the adjustment block (1101) in a pin-type manner; and the adjustment block (1101) is embedded in the front panel through a groove design; The wire feeding mechanism housing comprises an upper panel (1108) spliced ​​to each other, two sets of side panels (1109), a front panel (1106), a bottom plate (1107), and two sets of cover plates (1103) arranged on the upper panel (1108); Each cover plate (1103) corresponds to an adjustment block (1101); The cover plate (1103) is installed on the upper plate, and a threaded hole matching the adjusting bolt (1102) is arranged in the center of the cover plate; The steel ring forming mechanism comprises: a stainless steel wire forming guide groove (1202), a wire cutting cylinder mounting plate (1203), a wire cutting cylinder (1204), an extrusion cylinder (1207), a fixing frame (1209) and an extrusion push plate (1206); One end of the stainless steel wire forming guide groove (1202) is in a quarter arc shape, and the straight portion of the stainless steel wire forming guide groove (1202) fits with the wire cutting cylinder mounting plate (1203); The wire cutting cylinder (1204) is mounted on the wire cutting cylinder mounting plate (1203), the extrusion cylinder (1207) is mounted on the fixing frame (1209), and an extrusion push plate is arranged at the front end of the extrusion cylinder (1207); The extrusion cylinder (1207) is close to the arc end of the stainless steel wire forming guide groove (1202), and an extrusion push plate (1206) is provided; The stainless steel wire forming guide groove (1202) provides guidance for the stainless steel wire so that it can be automatically wound into a circular shape.

2. The device according to claim 1, characterized in that The diamond hole leveling mechanism (2) comprises: a U-shaped posture retaining frame (201), which is connected to a base (206) via two connecting plates (205) and two guide pillars (207); The two guide pillars (207) are parallel to each other, and a connecting plate (205) and a base (206) are respectively provided at both ends; The connecting plate (205) clamps the U-shaped posture retaining frame (201); A downward pressing cylinder (202) is provided at the end of the U-shaped posture retaining frame (201); an upward pressing block (203) is provided at the end of the downward pressing cylinder (202) close to the connecting plate (205); The other end of the U-shaped posture retaining frame (201) is provided with a notch for passing the diamond-shaped pinhole; When the lead needle (5) is transported by the synchronous belt conveyor (3) to be flush with the lower pressure block of the diamond hole leveling mechanism (2), the lead needle alignment mechanism (4) pushes the diamond hole of the lead needle to enter directly below the lower pressure block, and the lower pressure cylinder (202) drives the lower pressure block to move downward to adjust the posture of the diamond hole to be parallel to the ground. The lead needle alignment mechanism (4) pushes the lead needle (5) again until the diamond hole of the lead needle enters the U-shaped posture retaining frame (201), and finally the synchronous belt conveyor (3) continues to transport the lead needle (5) forward until the diamond hole of the lead needle (5) moves to the end notch of the U-shaped posture retaining frame (201).

3. The device according to claim 2, characterized in that The synchronous belt conveyor (3) comprises two groups of aluminum profile brackets (310); the two groups of aluminum profile brackets (310) are connected to each other via three cross beams (307); Four connecting angle brackets (303) are arranged on the inner side of the aluminum profile bracket (310); Two sets of transmission shaft mounting brackets (309) are arranged at both ends of the aluminum profile bracket (310); Two sets of synchronous pulleys (306) are fixed on the mounting frame (309) through the auxiliary transmission shaft (308) and the main transmission shaft (301); A reducer module (302) is provided on one side of the main transmission shaft (301), and a servo motor (311) is installed at the reducer module (302); Two sets of synchronous belts (304) are sleeved on the synchronous belt wheel (306); A plurality of groups of V-groove fixing blocks are arranged on the synchronous belt (304); The power of the servo motor is transmitted to the transmission shaft through the reducer module, and the main transmission shaft (301) drives the synchronous pulley (306) to drive the synchronous belt (304) to rotate, and the V-groove fixing block on the synchronous belt is driven to move forward to realize the transmission of the lead needle.

4. The device according to claim 3, characterized in that The lead needle alignment mechanism (4) comprises a linear module (403); The linear module (403) is connected to the mounting base plate (401) via two I-shaped bases (402); A servo motor (408) is installed on the side of the linear module (403) away from the aluminum profile bracket (310); A connecting transverse plate (404) is provided on the upper side of the linear module (403) to reinforce the linear module; The mounting plate (405) is connected to the linear module (403); A pin push plate (406) is arranged on the upper side of the mounting plate (405), and a sensor (407) is arranged on the pin push plate (406); When the sensor of the lead needle alignment mechanism (4) detects that the lead needle has arrived, a pulse signal is sent, the synchronous belt conveyor stops running, and the linear module (403) moves forward driven by the servo motor, and the lead needle is pushed to a suitable position through the push needle plate (406), so that the diamond hole leveling mechanism (2) can adjust the posture of the lead needle. When the posture adjustment is completed, the push needle plate (406) pushes the lead needle again so that the diamond hole of the lead needle enters the U-shaped posture retaining frame.

5. The device according to claim 4, characterized in that The lead needle (5) comprises a rhombus-shaped needle hole and a needle body; the material of the rhombus-shaped needle hole is an elastic material.

6. The device according to claim 5, characterized in that The frame (6) includes a left frame, a main frame, and a right frame in sequence from one side to the other; The left side frame is in a stepped shape and comprises a first mounting plate (619) for fixing the diamond hole leveling mechanism (2); and a second mounting plate (617) for fixing the fiber connection mechanism (1).

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