Thread end finding device and warping apparatus

Abstract

The application discloses a thread end searching device and a warping equipment. The thread end searching device comprises a rack, a rotating disc, a first driving mechanism, a second driving mechanism and a thread end searching mechanism. The rack is provided with a thread end searching station. The rotating disc is rotatably arranged on the rack. A plurality of positioning columns for mounting the cheese are rotatably arranged on the rotating disc. The plurality of positioning columns are arranged in a ring array. The first driving mechanism is arranged on the rack or the rotating disc and is used for driving the positioning columns to rotate. The second driving mechanism is arranged on the rack and is used for driving the rotating disc to rotate, so that the positioning columns can be moved to the thread end searching station. The thread end searching mechanism comprises a first support, a suction cutting mechanism and a third driving mechanism. The first support is arranged on the rack and is located at the thread end searching station. The suction cutting mechanism is arranged on the first support. The suction cutting mechanism is used for sucking and cutting the thread end of the cheese. The third driving mechanism is used for driving the suction cutting mechanism to feed or retreat. The above structure is beneficial to improving the production efficiency, reducing the labor cost and reducing the risk of the cheese being polluted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, in particular to a thread end searching device and a warping equipment. BACKGROUND

[0002] In the textile industry, the warping equipment for warping usually needs to manually search the thread end of the bobbin (including the yarn bobbin and the yarn wound on the yarn bobbin) in the production and processing process. The specific operation process is relatively complicated, which not only leads to low production efficiency, but also leads to high labor cost. In addition, the worker's hand will repeatedly contact the bobbin when searching the thread end, which leads to a high risk of contamination of the bobbin. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a thread end searching device, which is beneficial to improve production efficiency and reduce labor cost, and is also beneficial to reduce the risk of contamination of the bobbin.

[0004] The present application also provides a warping equipment with the above thread end searching device.

[0005] The thread end searching device according to the first aspect of the present application comprises: a rack, which is provided with a thread end searching station; a turntable, which is rotatably arranged on the rack, and is provided with a plurality of rotatable positioning columns arranged in a ring array, the positioning columns being used for mounting the bobbin and being capable of driving the bobbin to rotate when rotating; a first driving mechanism, which is arranged on the rack or the turntable and is used for driving the positioning columns to rotate; a second driving mechanism, which is arranged on the rack and is used for driving the turntable to rotate, so that the positioning columns can move to the thread end searching station; a thread end searching mechanism, which comprises a first support, a suction cutting mechanism and a third driving mechanism, the first support being arranged on the rack and located at the thread end searching station, the suction cutting mechanism being arranged on the first support, the suction cutting mechanism comprising a suction nozzle, an air pipe and a cutter assembly, the suction nozzle having an air outlet end and an air inlet end, the air outlet end of the suction nozzle being connected to one end of the air pipe, the other end of the air pipe being used for being connected to a negative pressure air source, the air inlet end of the suction nozzle being used for sucking the thread end of the bobbin into the air pipe, the cutter assembly being used for cutting the thread end of the bobbin sucked into the air pipe, and the third driving mechanism being used for driving the suction cutting mechanism to feed or retreat.

[0006] According to the thread end finding device, the following advantages can be achieved. When in use, the rotating disc is first driven to rotate by the second driving mechanism, so as to drive the positioning column with the cheese to move to the thread end finding station. Then, the suction and cutting mechanism is driven to feed by the third driving mechanism, so that the air inlet end of the suction nozzle is close to and abuts against the cheese moving to the thread end finding station along the positioning column. Then, the air pipe is connected to the negative pressure air source, and the positioning column moving to the thread end finding station is driven to rotate by the first driving mechanism. When the thread end of the cheese is sucked into the air pipe, the thread end of the cheese sucked into the air pipe is cut by the cutter assembly. Then, the suction and cutting mechanism is driven to retreat by the third driving mechanism, so that the thread end finding work is completed. The above process can be repeated to continuously perform the thread end finding work. The thread end finding device can reduce the required manual work in the production and processing process, reduce the contact between workers and cheeses, improve the production efficiency and reduce the labor cost, and reduce the risk of cheese pollution.

[0007] According to some embodiments of the present application, the air outlet end of the suction nozzle is floatingly connected to the air pipe, so that the air inlet end of the suction nozzle can be self-adapted to the contact surface after contacting the cheese.

[0008] According to some embodiments of the present application, the thread end finding mechanism further comprises a reset stopper arranged on the frame. The suction nozzle has a preset first initial position and a working position self-adapted to the contact surface after contacting the cheese. The reset stopper is located on the retreat path of the suction nozzle. When the suction nozzle retreats from the working position, the reset stopper can abut against the part between the air outlet end and the air inlet end of the suction nozzle, so as to force the suction nozzle to move relative to the air pipe and reset to the first initial position. The first support is provided with a sensing device corresponding to the suction nozzle. The sensing device is used to detect whether the suction nozzle is located at the first initial position.

[0009] According to some embodiments of the present application, the first driving mechanism comprises a first motor and a rebound device, the rebound device is arranged on the frame and located at the thread end finding station, the rebound device is arranged below the rotating disc, the first motor is arranged on the rebound device, so that the first motor can swing relative to the frame and store energy for the rebound device when the first motor is swung relative to the frame by external force, a driving gear is arranged on an output shaft of the first motor, the positioning column is rotatably arranged on the rotating disc, a driven gear is arranged on the lower part of the positioning column and corresponds to the driving gear, the driving gear has a second initial position on the moving path of the driven gear when the first motor is not subjected to external force, the driven gear of the lower part of the positioning column can mesh with the driving gear and drive the first motor to swing relative to the frame when the positioning column moves to the thread end finding station driven by the rotating disc, so that the rebound device provides elastic compression force for the meshed driving gear and driven gear, and the driven gear can be separated from the driving gear when the rotating disc continues to rotate in the same direction to drive the positioning column located at the thread end finding station to continue moving.

[0010] According to some embodiments of the present application, the rebound device comprises a mounting seat and a rotating shaft, the mounting seat is arranged on the frame, the lower part of the rotating shaft is rotatably connected to the mounting seat, an elastic member and a limiting assembly are arranged between the mounting seat and the rotating shaft, the rotating shaft can store energy for the elastic member when the rotating shaft rotates relative to the mounting seat, so that the elastic member can provide elastic force to drive the rotating shaft to rotate reversely relative to the mounting seat, the upper part of the rotating shaft is connected with a swinging member, the first motor is arranged at one end of the swinging member away from the rotating shaft, the limiting assembly comprises a first limiting member arranged on the rotating shaft and a second limiting member arranged on the mounting seat and corresponding to the first limiting member, the first limiting member can be limited with the second limiting member, so that the driving gear can be reset to the second initial position after the driven gear is separated from the driving gear.

[0011] According to some embodiments of the present application, the elastic member is a torsion spring or a clockwork.

[0012] According to some embodiments of the present application, the cutter assembly comprises a linear driving member and a cutter, the linear driving member is arranged on the first support, the cutter is arranged at the output end of the linear driving member and located at one side of the air pipe, an avoiding opening is arranged on the air pipe or at the connection between the air pipe and the suction nozzle and corresponds to the cutter, the linear driving member can drive the cutter to extend into the avoiding opening and cut the thread end of the cheese yarn sucked into the air pipe.

[0013] According to some embodiments of the present application, the rotating disc can drive two positioning columns to move to the thread end searching station simultaneously when rotating, two groups of the adsorption cutting mechanisms are arranged on the first support, and the two groups of the adsorption cutting mechanisms are arranged at intervals so that the thread end searching mechanism can process two cheese simultaneously.

[0014] According to some embodiments of the present application, two thread end searching stations are arranged at intervals on the rack, and a thread end searching mechanism is arranged on the rack corresponding to each thread end searching station.

[0015] According to the second aspect of the present application, the beaming device comprises the thread end searching device according to the first aspect of the present application.

[0016] According to the beaming device of the present application, the thread end searching device can reduce the required manual labor in the production process, reduce the contact between workers and cheese, improve the production efficiency and reduce the labor cost, and reduce the risk of cheese contamination.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a schematic diagram of the overall structure of the thread end searching device according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the overall structure of the thread end searching mechanism according to an embodiment of the present application;

[0021] Figure 3 is Figure 2The overall structure schematic diagram of another view of the structure shown;

[0022] Figure 4 The partial structure schematic diagram of the line searching head device of the embodiment of the application is shown in the figure;

[0023] Figure 5 The partial structure schematic diagram of the line searching head device of the embodiment of the application is shown in the figure; Figure 4 The partial enlarged schematic diagram of A in the figure.

[0024] Reference signs:

[0025] The rack 100, the rotating disc 200, the positioning column 210, the driven gear 211, the first driving mechanism 300, the first motor 310, the driving gear 311, the mounting seat 320, the second limiting piece 321, the rotating shaft 330, the first limiting piece 331, the swing piece 340, the second driving mechanism 400, the second motor 410, the first transmission mechanism 420, the first support 510, the suction cutting mechanism 520, the suction nozzle 521, the air pipe 522, the linear driving piece 523, the cutter 524, the third driving mechanism 530, the third motor 531, the second transmission mechanism 532, the reset blocking piece 540, the second support 550, and the collection box 600. DETAILED DESCRIPTION

[0026] The embodiments of the application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the application, and cannot be understood as a limitation of the application.

[0027] In the description of the application, it needs to be understood that if the orientation description is involved, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as a limitation of the application.

[0028] In the description of the application, if the words such as several, greater than, less than, more than, above, below, within, etc. appear, wherein the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. is not included in the number, and above, below, within, etc. is included in the number.

[0029] In the description of the application, if the words such as first, second, etc. appear, they are only used for distinguishing technical features for the purpose, and therefore cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the present application, the words such as arrangement, installation, connection and the like should be understood broadly unless otherwise explicitly limited, and the person skilled in the art can determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0031] With reference to Figures 1 to 5 The thread end finding device according to the embodiment of the present application comprises a rack 100, a rotating disc 200, a first driving mechanism 300, a second driving mechanism 400 and a thread end finding mechanism.

[0032] The rack 100 is provided with a thread end finding station, the rotating disc 200 is rotatably arranged on the rack 100, and a plurality of rotatable positioning columns 210 are arranged on the rotating disc 200 in an annular array. The positioning columns 210 are used for mounting the cheese, and the positioning columns 210 can drive the cheese to rotate when rotating. Specifically, the cheese drum of the cheese is sleeved on the positioning column 210, wherein the cheese drum of the cheese is in interference fit with the positioning column 210, so that the positioning column 210 can drive the cheese to rotate when rotating. Of course, the positioning column 210 can also drive the cheese to rotate through a vacuum suction mode or a clamping mode, which is not limited here. The first driving mechanism 300 is arranged on the rack 100 or the rotating disc 200 and is used for driving the positioning column 210 to rotate. The second driving mechanism 400 is arranged on the rack 100 and is used for driving the rotating disc 200 to rotate, so that the positioning column 210 can move to the thread end finding station. The thread end finding mechanism comprises a first support 510, a suction cutting mechanism 520 and a third driving mechanism 530. The first support 510 is arranged on the rack 100 and located at the thread end finding station. The suction cutting mechanism 520 is arranged on the first support 510. The suction cutting mechanism 520 comprises a suction nozzle 521, an air pipe 522 and a cutter assembly. The suction nozzle 521 has an air outlet end and an air inlet end. The air outlet end of the suction nozzle 521 is connected to one end of the air pipe 522. The other end of the air pipe 522 is used for being connected to a negative pressure air source. The air inlet end of the suction nozzle 521 faces the rotating disc 200 and is used for sucking the thread end of the cheese into the air pipe 522. The cutter assembly is used for cutting the thread end of the cheese sucked into the air pipe 522. The third driving mechanism 530 is used for driving the suction cutting mechanism 520 to feed or retreat, so that the air inlet end of the suction nozzle 521 can approach or move away from the cheese moving to the thread end finding station along with the positioning column 210.

[0033] In use, first, the rotating disc 200 is driven to rotate by the second driving mechanism, so as to drive the positioning column 210 on which the cheese is installed to move to the thread end searching station. Then, the suction and cutting mechanism 520 is driven to feed by the third driving mechanism 530, so as to make the air inlet end of the suction nozzle 521 close to and abut against the cheese moving to the thread end searching station with the positioning column 210. Then, the air pipe 522 is connected to the negative pressure air source, and the positioning column 210 moving to the thread end searching station is driven to rotate by the first driving mechanism 300. When the thread end of the cheese is sucked into the air pipe 522, the thread end of the cheese sucked into the air pipe 522 is cut by the cutter assembly. Then, the suction and cutting mechanism 520 is driven to retreat by the third driving mechanism 530, so as to complete the thread end searching work. The above process is repeated to continuously search the thread end. The thread end searching device can reduce the required manual work in the production process, reduce the contact between the workers and the cheese, improve the production efficiency and reduce the labor cost, and reduce the risk of cheese pollution.

[0034] It should be noted that in some embodiments, the air outlet end of the suction nozzle 521 is floatingly connected to the air pipe 522, so that the air inlet end of the suction nozzle 521 can adaptively contact the surface after contacting the cheese, which is beneficial to improve the suction effect of the suction nozzle 521. The specific floating connection structure is a known technology, which is not described here.

[0035] Referring to Figure 2 and Figure 3 In some embodiments, the thread end searching mechanism further comprises a reset blocking piece 540 arranged on the rack 100. Specifically, the rack 100 is provided with a second bracket 550, and the reset blocking piece 540 is arranged on the upper portion of the second bracket 550. The suction nozzle 521 has a preset first initial position and a working position adapted to the surface after contacting the cheese. The reset blocking piece 540 is located on the retreat path of the suction nozzle 521. When the suction nozzle 521 retreats from the working position, the reset blocking piece 540 can abut against the portion between the air outlet end and the air inlet end of the suction nozzle 521, so as to force the suction nozzle 521 to move relative to the air pipe 522 and reset to the first initial position. The first bracket 510 is provided with a sensing device (not shown in the figure) corresponding to the suction nozzle 521. The sensing device is used to detect whether the suction nozzle 521 is located at the first initial position, so that the background control system can judge whether the thread end searching work currently being performed has been completed, so as to facilitate the next round of thread end searching work.

[0036] Referring to Figure 4 and Figure 5In some embodiments, the first driving mechanism 300 comprises a first motor 310 and a rebound device, the rebound device is arranged on the frame 100 and located at the thread end finding station, the rebound device is arranged below the rotating disc 200, the first motor 310 is arranged on the rebound device so that the first motor 310 can swing relative to the frame 100 and store energy for the rebound device when the first motor 310 swings relative to the frame 100 under external force, a driving gear 311 is arranged on an output shaft of the first motor 310, the positioning column 210 is rotatably arranged on the rotating disc 200, a driven gear 211 is arranged on the lower part of the positioning column 210 corresponding to the driving gear 311, the driving gear 311 has a second initial position on the moving path of the driven gear 211 when the first motor 310 is not under external force, the driven gear 211 on the lower part of the positioning column 210 can mesh with the driving gear 311 and drive the first motor 310 to swing relative to the frame 100 when the positioning column 210 moves to the thread end finding station under the driving of the rotating disc 200, so that the rebound device provides elastic compression force for the meshing driving gear 311 and driven gear 211, wherein the rotating disc 200 continues to rotate in the same direction to drive the positioning column 210 located at the thread end finding station to continue to move, so that the driven gear 211 can be separated from the driving gear 311, so that the driven gear 211 on the lower part of the positioning column 210 that moves to the thread end finding station can automatically mesh with the corresponding driving gear 311 each time the rotating disc 200 drives the positioning column 210 to move to the thread end finding station.

[0037] Referring to Figure 5 In some embodiments, the rebound device comprises a mounting seat 320 and a rotating shaft 330, the mounting seat 320 is arranged on the frame 100, the lower part of the rotating shaft 330 is rotatably connected to the mounting seat 320, an elastic member (not shown in the figure) and a limiting assembly are arranged between the mounting seat 320 and the rotating shaft 330, the rotating shaft 330 can store energy for the elastic member when the rotating shaft 330 rotates relative to the mounting seat 320, so that the elastic member can provide elastic force to drive the rotating shaft 330 to rotate in the opposite direction relative to the mounting seat 320, the upper part of the rotating shaft 330 is connected with a swinging member 340, the first motor 310 is arranged at one end of the swinging member 340 away from the rotating shaft 330, the limiting assembly comprises a first limiting member 331 arranged on the rotating shaft 330 and a second limiting member 321 arranged on the mounting seat 320 corresponding to the first limiting member 331, the first limiting member 331 can be limited in cooperation with the second limiting member 321, so that the driving gear 311 can be reset to the second initial position after the meshing driven gear 211 and driving gear 311 are separated, which has simple structure and is easy to realize, wherein the elastic member is a torsion spring or a clockwork.

[0038] Referring to Figure 4In some embodiments, the second driving mechanism 400 comprises a second motor 410 and a first transmission mechanism 420. The second motor 410 is arranged on the frame 100, and the first transmission mechanism 420 is arranged between the second motor 410 and the rotating disc 200. Specifically, the first transmission mechanism can be a worm gear transmission mechanism, a synchronous belt transmission mechanism, or other transmission mechanisms, which are not limited herein.

[0039] With reference to Figures 1 to 3 In some embodiments, the third driving mechanism 530 comprises a third motor 531 and a second transmission mechanism 532. The third motor 531 is arranged on the frame 100, and the second transmission mechanism 532 is arranged between the third motor 531 and the first support 510. Specifically, the second transmission mechanism 532 is a screw transmission mechanism. Of course, the third driving mechanism can also be replaced by a pneumatic cylinder or other linear driving mechanisms, which are not limited herein.

[0040] With reference to Figures 1 to 3 In some embodiments, the cutter assembly comprises a linear driving member 523 and a cutter 524. The linear driving member 523 is arranged on the first support 510, and the cutter 524 is arranged at the output end of the linear driving member 523 and located at one side of the air pipe 522. The air pipe 522 or the connection between the air pipe 522 and the suction nozzle 521 is provided with a clearance (not shown in the figure) corresponding to the cutter 524. The linear driving member 523 can drive the cutter 524 to extend into the clearance and cut the thread end of the cheese yarn sucked into the air pipe 522. The structure is simple and easy to implement. In some embodiments, the linear driving member 523 is a pneumatic cylinder. Of course, the linear driving member can also be an electric push rod or other linear driving structures, which are not limited herein. In addition, the cutter 524 is always inserted into the clearance, which is beneficial to reducing the influence of the clearance on the suction effect of the suction nozzle 521 and preventing the thread end of the cheese yarn sucked by the suction nozzle 521 from escaping from the clearance.

[0041] With reference to Figure 1 In some embodiments, the rotating disc 200 can drive the two positioning columns 210 to move to the thread end finding station at the same time. The first support 510 is provided with two sets of suction and cutting mechanisms 520, which are arranged at intervals to enable the thread end finding mechanism to process two cheese yarns at the same time, which is beneficial to further improving the production efficiency.

[0042] With reference to Figure 1 In some embodiments, two thread end finding stations are arranged at intervals on the frame 100, and the frame 100 is provided with a thread end finding mechanism corresponding to each thread end finding station, which is beneficial to further improving the production efficiency.

[0043] With reference to Figures 1 to 3In some of the embodiments, a collection box 600 is arranged between the air pipe 522 and the negative pressure air source, and is used to collect the thread ends of the cheese that are cut by the cutter assembly.

[0044] The warping device according to the embodiments of the present application is provided with the above-described thread end finding device. When the thread end finding work is performed by using the thread end finding device, the turntable 200 is first driven to rotate by the second driving mechanism, so as to drive the positioning column 210 on which the cheese is mounted to move to the thread end finding station. Then, the suction cutting mechanism 520 is driven to feed by the third driving mechanism 530, so as to make the air inlet end of the suction nozzle 521 close to and abut against the cheese that moves to the thread end finding station with the positioning column 210. Then, the air pipe 522 is connected to the negative pressure air source, and the positioning column 210 that moves to the thread end finding station is driven to rotate by the first driving mechanism 300. When the thread end of the cheese is sucked into the air pipe 522, the thread end of the cheese that is sucked into the air pipe 522 is cut by the cutter assembly. Then, the suction cutting mechanism 520 is driven to retreat by the third driving mechanism 530, so as to complete the thread end finding work. The above-described process is repeated, so as to continuously perform the thread end finding work. The thread end finding device described above can reduce the labor required in the production and processing process, and can reduce the contact between the workers and the cheese. The thread end finding device is beneficial to improve the production efficiency and reduce the labor cost, and is beneficial to reduce the risk of the cheese being contaminated.

[0045] In the description of the present specification, if the description involves the terms such as “one embodiment”, “some embodiments”, “exemplary embodiment”, “example”, “specific example”, and “some examples”, it means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A device for finding thread ends, characterized in that, include: The frame is equipped with a wire-finding station. A turntable is rotatably mounted on the frame. The turntable is provided with a plurality of rotatable positioning posts, which are arranged in a circular array. The positioning posts are used to mount the yarn package, and the rotation of the positioning posts can drive the yarn package to rotate. A first driving mechanism is mounted on the frame and is used to drive the positioning column to rotate; The second drive mechanism is mounted on the frame and is used to drive the turntable to rotate so that the positioning column can move to the thread finding station. The thread-finding mechanism includes a first support, an adsorption and cutting mechanism, and a third drive mechanism. The first support is mounted on the frame and located at the thread-finding station. The adsorption and cutting mechanism is mounted on the first support and includes a suction nozzle, an air duct, and a cutter assembly. The suction nozzle has an air outlet and an air inlet. The air outlet of the suction nozzle is connected to one end of the air duct, and the other end of the air duct is connected to a negative pressure air source. The air inlet of the suction nozzle is used to draw the thread end of the packaged yarn into the air duct. The cutter assembly is used to cut the thread end of the packaged yarn drawn into the air duct. The third drive mechanism is used to drive the adsorption and cutting mechanism to feed or retract. The air outlet end of the suction nozzle is floatingly connected to the air duct so that the air inlet end of the suction nozzle can adapt to the contact surface after contacting the yarn package. The yarn finding mechanism further includes a reset stop on the frame. The suction nozzle has a preset first initial position and a working position of the adaptive contact surface after contacting the yarn package. The reset stop is located on the retraction path of the suction nozzle. When the suction nozzle retracts from the working position, the reset stop can abut against the part between the air outlet end and the air inlet end of the suction nozzle to force the suction nozzle to move relative to the air duct and reset to the first initial position. A sensing device is provided on the first bracket corresponding to the suction nozzle. The sensing device is used to detect whether the suction nozzle is located in the first initial position. The first drive mechanism includes a first motor and a spring-loaded device. The spring-loaded device is mounted on the frame and located at the thread-finding station. The spring-loaded device is positioned below the turntable. The first motor is mounted on the spring-loaded device so that it can swing relative to the frame, and when the first motor swings relative to the frame under external force, it can store energy for the spring-loaded device. A drive gear is mounted on the output shaft of the first motor. A positioning post is rotatably mounted on the turntable, and a driven gear is mounted on the lower part of the positioning post corresponding to the drive gear. When the first motor is not subjected to external force, the driving gear has a second initial position on the movement path of the driven gear. When the positioning post moves to the thread-finding station under the drive of the turntable, the driven gear at its lower part can mesh with the driving gear and drive the first motor to swing relative to the frame, so that the spring-loaded device provides elastic clamping force for the meshing driving gear and driven gear. When the turntable continues to rotate in the same direction to drive the positioning post at the thread-finding station to continue moving, the driven gear can separate from the driving gear.

2. The thread-finding device as described in claim 1, characterized in that, The rebound device includes a mounting base and a rotating shaft. The mounting base is disposed on the frame, and the lower part of the rotating shaft is rotatably connected to the mounting base. An elastic element and a limiting component are disposed between the mounting base and the rotating shaft. When the rotating shaft rotates relative to the mounting base, it can store energy for the elastic element, so that the elastic element can provide an elastic force to drive the rotating shaft to rotate in the opposite direction relative to the mounting base. A swinging element is connected to the upper part of the rotating shaft. The first motor is disposed at the end of the swinging element away from the rotating shaft. The limiting component includes a first limiting element disposed on the rotating shaft and a second limiting element disposed on the mounting base corresponding to the first limiting element. The first limiting element can cooperate with the second limiting element to limit the rotation, so that after the driven gear separates from the driving gear, the driving gear can return to the second initial position.

3. The thread-finding device as described in claim 2, characterized in that, The elastic element is a torsion spring or a clockwork.

4. The thread-finding device as described in claim 1, characterized in that, The cutting assembly includes a linear drive and a cutter. The linear drive is mounted on the first bracket, and the cutter is located at the output end of the linear drive and on one side of the air duct. An clearance opening is provided on the air duct or at the connection between the air duct and the nozzle corresponding to the cutter. The linear drive can drive the cutter to extend into the clearance opening and cut the yarn ends of the yarn package sucked into the air duct.

5. The thread-finding device as described in claim 1, characterized in that, When the turntable rotates, it can drive the two positioning columns to move simultaneously to the yarn finding station. The first bracket is equipped with two sets of adsorption and cutting mechanisms, which are spaced apart so that the yarn finding mechanism can process two yarn packages at the same time.

6. The thread-finding device as described in claim 1, characterized in that, The frame is provided with two wire-finding stations at intervals, and each wire-finding station is provided with a wire-finding mechanism.

7. A warping device, characterized in that, Includes the thread finding device as described in any one of claims 1 to 6.

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