Anti-winding type residual thread active extracting and shearing device for thread ball bobbin case treatment

Abstract

The invention relates to the technical field of textile equipment, in particular to an anti-winding type residual thread active extracting and shearing device for thread ball bobbin case treatment, which comprises a suction pretreatment pipe, a negative pressure generation box, a thread drafting mechanism and a fusing separation module. The full-closed-loop pretreatment of catching, straightening, shearing and removing is achieved on a bobbin case transfer path, and the problems that due to the fact that follow-up blowing cleaning is relied on traditionally, remaining threads wind mechanical parts, an airflow channel is blocked, and equipment shutdown faults are caused due to incomplete treatment are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of textile equipment technology, specifically to an anti-tangling active extraction and shearing device for handling bobbin shells of yarn balls. Background Technology

[0002] In the field of automated online bobbin case processing, efficiently and reliably cleaning the excess thread remaining on the bobbin case after sewing is a critical and challenging process. Currently, the industry commonly uses a high-speed airflow to blow away the excess thread after it has been transferred to a designated station. However, this passive method has significant limitations: due to the variable length and irregular shape of the excess thread, which often exhibits curling or entanglement characteristics, it is highly susceptible to adhering to or becoming entangled on robotic grippers, protruding structures in the conveyor path, or other moving parts before being blown away.

[0003] This pre-winding phenomenon not only directly leads to a significant reduction in the efficiency of subsequent air blowing and cleaning—long wire ends may block the air blowing channel, while short wire ends are difficult to blow away completely—but also causes serious equipment malfunctions. Accumulated winding can cause mechanical movement to become stuck, sensor misjudgments, and even damage to the mechanism, resulting in frequent production line shutdowns and severely restricting overall processing efficiency and the stability of automated production.

[0004] While some existing technologies offer solutions for cutting or extracting wire ends, they primarily focus on end-of-pipe processing and fail to fundamentally address the controllability issue of excess wire during the crucial transfer process from "after being grabbed" to "before being cleaned up." Most devices still rely on the free state of the wire end itself for operation, lacking the ability to actively guide and control the wire end's posture.

[0005] For example, some solutions using simple negative pressure adsorption are ineffective at handling tangled or adhered thread ends; while simple mechanical hooking methods are prone to thread breakage and residue or damage to the bobbin case due to improper force control. Therefore, how to achieve stable capture, directional guidance, controlled tension pulling, and thorough cutting and removal of thread ends while they are still suspended, thus creating ideal conditions for subsequent cleaning processes, has become a critical technical problem that needs to be solved to improve the reliability of fully automated thread bobbin case processing equipment and reduce downtime for maintenance. Summary of the Invention

[0006] To address the problems existing in the prior art, a non-entangled active extraction and cutting device for handling bobbin shells is provided. By integrating a collaborative operation process of negative pressure directional capture, servo active traction and synchronous hot melt cutting, a closed-loop pre-processing of "capture, straighten, cut and remove" is achieved on the bobbin shell transfer path. This effectively solves the problems of mechanical parts being entangled with excess thread, airflow channels being blocked, and equipment downtime caused by incomplete processing, which are caused by the traditional reliance on subsequent air blowing cleaning.

[0007] To address the problems of existing technologies, this invention provides an anti-tangling active extraction and shearing device for handling bobbin cases, applied to pull and shear the thread ends hanging downwards from the bobbin case after it has been grabbed from a storage tray. The device includes: a suction pretreatment tube with a suction channel extending vertically, the top of which forms a negative pressure adsorption port for capturing and sucking in the thread ends hanging from the bobbin case; its bottom end is connected to a fixed guide cylinder with a closed end, the axis of which is horizontal; a negative pressure generating box connected to the fixed guide cylinder and having a negative pressure interface arranged laterally thereon, used to generate directional airflow within the suction channel and the fixed guide cylinder to complete the picking up and conveying of the thread ends; and a melting and separating module disposed on one side of the suction pretreatment tube, the melting and separating module having a hot-melt shearing head arranged coaxially with the suction channel for hot-melt cutting when the thread ends are taut.

[0008] Preferably, the device further includes a wire drawing mechanism, which includes: a traction roller, which is coaxially rotatable and disposed inside the closed end of the fixed guide cylinder; and a servo drive component, which is drively connected to the traction roller; wherein the traction roller performs rotational motion under the controlled drive of the servo drive component, thereby applying axial traction force to the wire end that enters the suction channel through the negative pressure suction port, so as to stretch it to a preset tension length.

[0009] Preferably, the traction roller has a conical structure, and its outer diameter gradually decreases axially from the closed end of the fixed guide cylinder towards the negative pressure interface. This gradually decreasing geometry is used to guide the wire wound on its surface to generate an axial sliding force, so as to promote the wire to converge towards the narrow end of the traction roller and detach.

[0010] Preferably, the negative pressure adsorption port forms a conical flared portion, the inner diameter of which gradually narrows downward along the airflow outward direction.

[0011] Preferably, the fusion separation module further includes: a linear drive component disposed at the top of the negative pressure generating box, and having an output rod that reciprocates radially along the suction channel; a hot melt shear head installed at the end of the output rod of the linear drive component, having a high-temperature cutting edge, the cutting plane of the cutting edge being horizontally aligned with the central axis of the suction channel, for radial cutting under drive to complete the hot melt separation of the stretched straight material.

[0012] Preferably, the high-temperature cutting edge of the hot melt shear head and the output rod of the linear drive component form a non-perpendicular acute angle relationship to create an oblique cutting trajectory with progressive shearing effect.

[0013] Preferably, it further includes a space adjustment mechanism, which has a support platform that can be displaced in two orthogonal directions, longitudinal and transverse; The negative pressure generating box is fixedly installed on the support platform of the space adjustment mechanism, so that the entire suction pretreatment tube can be aligned and adjusted according to the hanging position of the wire end.

[0014] Preferably, the space adjustment mechanism includes: a longitudinal displacement unit having a first bearing worktable; a transverse displacement unit fixedly installed on the first bearing worktable of the longitudinal displacement unit and having a second bearing worktable; and a vertical displacement unit fixedly installed on the second bearing worktable of the transverse displacement unit, with its end actuator fixedly connected to the negative pressure generating box.

[0015] Preferably, the negative pressure interface of the negative pressure generating box is connected to an external negative pressure power source through a flexible guide pipe.

[0016] Preferably, the negative pressure interface of the negative pressure generating box is higher than the bottom surface of the inner cavity of the negative pressure generating box, and the inner cavity of the negative pressure generating box that is lower than the negative pressure interface forms a storage cavity for storing wire ends.

[0017] The advantages of this application compared to the prior art are: This application achieves proactive intervention throughout the entire process of thread end capture and status control by combining negative pressure adsorption with servo stretching. Before any excess thread has a chance to entangle with mechanical parts, it is orderly straightened and removed, fundamentally eliminating equipment jamming and downtime caused by such issues. Furthermore, negative pressure adsorption ensures a high thread end capture rate, and combined with stable tension achieved through controllable stretching and hot-melt shearing technology, it achieves a smooth, fused cut without burrs or fiber residue, avoiding secondary contamination and creating excellent conditions for subsequent cleaning processes. Attached Figure Description

[0018] Figure 1 This is a perspective view of an anti-tangle type active extraction and shearing device for processing bobbin shells according to the present invention.

[0019] Figure 2 This is a cross-sectional view of an anti-tangle type active extraction and cutting device for processing bobbin shells of yarn according to the present invention.

[0020] Figure 3 yes Figure 2 A magnified view of part A.

[0021] Figure 4 This is a perspective view of a spool-shaped bobbin shell processing device for anti-tangling active extraction and cutting of excess thread from a first perspective.

[0022] Figure 5 This is a perspective view of a spool-shaped bobbin shell processing device for anti-tangle active extraction and shearing of excess thread from a second perspective.

[0023] Figure 6 This is an exploded perspective view of the anti-tangle type active extraction and shearing device for processing bobbin shells of the present invention, taken from a first perspective.

[0024] Figure 7 This is a perspective exploded view of the anti-tangle type active extraction and shearing device for processing bobbin shells of the present invention from a second perspective.

[0025] Figure 8 This is a perspective view of the space adjustment mechanism in an anti-tangle type active extraction and shearing device for processing bobbin shells according to the present invention.

[0026] The diagram is labeled as follows: 1. Suction pretreatment tube; 11. Suction channel; 12. Negative pressure adsorption port; 13. Fixed guide tube; 2. Negative pressure generating box; 21. Negative pressure interface; 22. Flexible guide pipe; 3. Fusion separation module; 31. Hot melt shear head; 32. Linear drive component; 41. Traction roller; 42. Servo drive component; 5. Space adjustment mechanism; 51. Longitudinal displacement unit; 52. Lateral displacement unit; 53. Vertical displacement unit; 6. Storage tray; 61. Shuttle shell. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 5 As shown, an anti-tangling active extraction and cutting device for handling bobbin cases 61 is used to pull and cut the thread ends hanging downwards from the bobbin case 61 after the bobbin case 61 is picked up by the storage tray 6. The device includes: a suction pretreatment tube 1 with a suction channel 11 extending vertically. The top of the suction channel 11 forms a negative pressure adsorption port 12 for capturing and sucking in the thread ends hanging from the bobbin case 61. Its bottom end is connected to a fixed guide tube 13 with a closed end. The axis of the fixed guide tube 13 is horizontal. A negative pressure generating box 2 is connected to the fixed guide tube 13 and has a negative pressure interface 21 arranged laterally thereon. It is used to form a directional airflow in the suction channel 11 and the fixed guide tube 13 to complete the picking up and conveying of the thread ends. A melting and separation module 3 is arranged on one side of the suction pretreatment tube 1. The melting and separation module 3 is provided with a hot melt cutting head 31 arranged coaxially with the suction channel 11. It is used to perform hot melt cutting when the thread ends are in a taut state.

[0029] The suction pretreatment tube 1 forms the initial channel for capturing and guiding the filament. Its main body is a suction channel 11 extending vertically, the top of which is configured as a negative pressure suction port 12 for capturing and sucking up the suspended filament. The bottom end of the suction channel 11 is connected to a fixed guide tube 13 arranged horizontally, one end of which is a closed structure.

[0030] The negative pressure generating box 2 is connected to the fixed guide tube 13 and has a negative pressure interface 21 on its side. Its function is to generate a stable and directional airflow in the suction channel 11 and inside the fixed guide tube 13 through an external negative pressure source. This airflow acts on the cable end from top to bottom, first reliably picking up the freely hanging cable end and smoothly conveying it through the suction channel 11, laying the foundation for subsequent operations.

[0031] The fusion separation module 3 is located to the side of the suction pretreatment tube 1. It includes a hot-melt shearing head 31 arranged coaxially with the suction channel 11. This shearing head is precisely configured so that when the wire end is processed and taut within the suction channel 11, the hot-melt shearing head 31 activates, using high temperature to instantly melt and separate the wire end, thus achieving clean and rapid separation. The melted wire waste is carried away under the continuous action of negative pressure airflow.

[0032] When the shuttle case 61 carrying the dangling wire end is moved to the device station, the negative pressure generating box 2 is activated first, forming a strong negative pressure adsorption field at the top of the suction channel 11, reliably sucking in the loose wire end and guiding it into the vertical channel. The wire end enters the horizontal fixed guide cylinder 13 under the guidance of the airflow. Through control, it is ensured that the wire end is pulled out and kept taut. At this time, the fusion separation module 3 is activated, and its thermal fusion shear head 31 cuts along a radial or predetermined trajectory, performing thermal fusion cutting at the taut wire. The cut short wire end waste is immediately sucked into the negative pressure generating box 2 by the continuous negative pressure airflow through the fixed guide cylinder 13, and finally enters the waste collection system, thus completing a complete wire removal operation.

[0033] like Figure 3 , Figure 6 and Figure 7 As shown, it also includes a wire drawing mechanism, which includes: a traction roller 41, which is coaxially rotatable and disposed inside the closed end of the fixed guide cylinder 13; and a servo drive component 42, which is drively connected to the traction roller 41. The traction roller 41 performs rotational motion under the controlled drive of the servo drive component 42, thereby applying axial traction force to the wire end that enters the suction channel 11 through the negative pressure suction port 12, so as to stretch it to a preset tension length.

[0034] The wire drawing mechanism specifically includes a traction roller 41 coaxially and rotatably disposed inside the closed end of the fixed guide cylinder 13, and a servo drive component 42 that is driveably connected to the traction roller 41. Under the controlled drive of the servo drive component 42, the traction roller 41 can perform precise rotational motion. Its core function is to apply a controllable axial traction force to the wire end that enters the suction channel 11 through the negative pressure suction port 12 and reaches its end. This process actively pulls out and precisely stretches the potentially loose and messy wire end to a preset tension length and state, creating crucial stable conditions for subsequent fuse separation.

[0035] When the shuttle case 61 carrying the dangling wire ends is moved to the device station, the negative pressure generating box 2 is activated first, forming a strong negative pressure adsorption field at the top of the suction channel 11, reliably sucking in the loose wire ends and guiding them into the vertical channel. The wire ends enter the horizontal fixed guide cylinder 13 under the guidance of the airflow. Immediately afterwards, the wire drawing mechanism is activated, and the servo drive component 42 precisely drives the traction roller 41 to rotate, actively pulling out the wire ends and tightening them to a predetermined length and tension. At this time, the fusion separation module 3 is activated, and its thermal fusion shear head 31 cuts along a radial or predetermined trajectory, performing thermal fusion cutting at the taut wire. The cut short wire end waste is immediately sucked into the negative pressure generating box 2 by the continuous negative pressure airflow through the fixed guide cylinder 13, and finally enters the waste collection system, thus completing a complete wire removal operation.

[0036] like Figure 3 As shown, the traction roller 41 has a conical structure, and its outer diameter gradually decreases axially from the closed end of the fixed guide cylinder 13 toward the negative pressure interface 21. This gradually decreasing geometry is used to guide the wire wound on its surface to generate an axial sliding force, so as to promote the wire to converge toward the narrow end of the traction roller 41 and detach.

[0037] The traction roller 41 adopts a unique conical structure design, with its outer diameter gradually decreasing axially from the closed end of the fixed guide cylinder 13 towards the negative pressure interface 21. This gradually decreasing geometry can generate an axial sliding force pointing towards the narrower end on the wire that accidentally comes into contact with or wraps around its surface during rotation, thereby promoting the wire to converge towards that end and eventually detach smoothly, effectively avoiding the unexpected retention or accumulation of the wire on the roller surface.

[0038] When the wire drawing mechanism is started, the servo drive component 42 precisely drives the conical traction roller 41 to rotate, actively pulling out the wire end and tightening it to the predetermined length and tension. Thanks to the conical design of the traction roller 41, even if there is a slight tendency to entangle during the drawing process, it will slide towards the thinner end under the action of the axial component force, ensuring the cleanliness and continuity of the drawing process.

[0039] like Figures 6 to 8As shown, the negative pressure adsorption port 12 forms a conical flared section, the inner diameter of which gradually narrows downward along the airflow outward direction.

[0040] During the wire capture and introduction stage, when the shuttle 61 is transferred to the pre-processing station, the negative pressure generation system is activated to establish a directional airflow throughout the entire suction channel 11.

[0041] The negative pressure adsorption port 12 at the top of the channel is designed as a conical flare, with its inner diameter gradually narrowing downwards along the airflow exit direction. This key geometric structure causes the airflow entering from the large-diameter end to significantly increase in velocity as it flows towards the small-diameter end (i.e., the main body of the channel), forming a local low-pressure core region in the throat area of ​​the flare according to Bernoulli's principle.

[0042] This high-energy flow field generates a powerful, inward-directing suction and enveloping force on the thread end entering its effective range. Compared to a flat-mouth design, this tapered flared structure greatly expands the effective capture range and has excellent tolerance and correction capabilities for possible lateral deviations, slight swaying, or non-vertical hanging postures of the thread end. This ensures that the thread end can be quickly, stably, and reliably "captured" and "swallowed" into the suction channel 11, completing the primary transition from a free hanging state to a controlled and constrained state.

[0043] like Figure 4 As shown, the fusion separation module 3 further includes: a linear drive component 32, which is disposed at the top of the negative pressure generating box 2 and has an output rod that reciprocates radially along the suction channel 11; a hot melt shearing head 31 is installed at the end of the output rod of the linear drive component 32, which has a high-temperature cutting edge, and the cutting plane of the cutting edge is horizontally aligned with the central axis of the suction channel 11, for radial cutting under drive to complete the hot melt separation of the stretched straight material.

[0044] The fuse separation module 3 is located at the top of the negative pressure generating box 2. Specifically, it includes a linear drive component 32, which has an output rod capable of making precise reciprocating linear motion along the radial direction of the suction channel 11.

[0045] At the end of the output rod, a hot melt shearing head 31 is installed, which has a high-temperature cutting edge. The cutting plane of this edge is precisely set to be horizontally aligned with the central axis of the suction channel 11. This configuration allows the linear drive component 32 to drive the hot melt shearing head 31 to quickly and accurately cut into the wire radially when the wire is processed by the wire stretching mechanism in the channel and reaches a preset tension state.

[0046] The horizontally aligned cutting edge ensures that the cutting force is applied perpendicularly to the straight wire, and the wire is melted and separated by instantaneous high temperature, resulting in a smooth cut without fiber fraying or burrs.

[0047] like Figure 7 As shown, the high-temperature cutting edge of the hot melt shear head 31 and the output rod of the linear drive component 32 form a non-perpendicular acute angle relationship to create an oblique cutting trajectory with progressive shearing effect.

[0048] When the linear drive component 32 pushes the output rod, thereby driving the thermoplastic shear head 31 to move radially toward the taut wire, due to the presence of this acute angle, the sharp, high-temperature cutting edge does not strike the wire perpendicularly, but rather begins to contact the wire at a certain angle. This contact method allows the cutting edge to begin cutting into the wire from a certain point on its side, and as it continues to advance linearly, the point of entry forms a diagonally sliding trajectory on the material.

[0049] Unlike the instantaneous full-section impact of traditional vertical shearing, oblique cutting decomposes the cutting force and applies it to a gradually expanding contact area. As a result, the melting and separation of the wire is not instantaneous but gradually completed through the sliding advance of the cutting edge. First, it significantly reduces peak cutting force and instantaneous impact, making the stress on the entire drive mechanism and wire more gradual, reducing vibration and stress concentration. Second, the gradual process provides more time for heat conduction and concentration, helping to achieve a more uniform and thorough melting effect at the cut, further ensuring the smoothness of the cut and the quality of the fusion. Finally, this method effectively avoids the lateral slippage or violent vibration of the wire that may be caused by vertical shearing, improving the certainty and success rate of the cutting action.

[0050] like Figure 8 As shown, it also includes a space adjustment mechanism 5, which has a support platform that can move in two orthogonal directions, longitudinal and transverse; wherein, the negative pressure generating box 2 is fixedly installed on the support platform of the space adjustment mechanism 5, so that the entire suction pretreatment tube 1 can be aligned and adjusted according to the hanging position of the wire end.

[0051] The space adjustment mechanism 5 is equipped with a support platform that can independently and precisely displace in two orthogonal horizontal directions: longitudinal (e.g., front-back direction) and lateral (e.g., left-right direction).

[0052] By fixing the negative pressure generating box 2 to this support platform, the entire negative pressure capture and pretreatment unit, consisting of the negative pressure generating box 2, the suction pretreatment tube 1, etc., becomes a whole that can be freely positioned and moved in the horizontal plane. Before the shuttle shell 61 winds the thread, the space adjustment mechanism 5 is adjusted to make its support platform move as a whole, driving the negative pressure generating box 2 and the suction pretreatment tube 1, so that the conical flared negative pressure adsorption port 12 at the top of the suction channel 11 can be accurately aligned with and cover the expected hanging area of ​​the thread end.

[0053] like Figure 8As shown, the space adjustment mechanism 5 includes: a longitudinal displacement unit 51, which has a first bearing worktable; a transverse displacement unit 52, which is fixedly installed on the first bearing worktable of the longitudinal displacement unit 51 and has a second bearing worktable; and a vertical displacement unit 53, which is fixedly installed on the second bearing worktable of the transverse displacement unit 52, and whose end actuator is fixedly connected to the negative pressure generating box 2.

[0054] First, the longitudinal displacement unit 51 constitutes the underlying foundation of the mechanism's motion, and it has a first bearing worktable that can move precisely linearly along the longitudinal direction (such as the front and rear direction of the equipment).

[0055] Secondly, the lateral displacement unit 52 is fixedly mounted on the first support worktable of the longitudinal displacement unit 51. The lateral displacement unit 52 will inherit the movement of the longitudinal displacement unit 51. The lateral displacement unit 52 itself also has a second support worktable that can move laterally (e.g., in the left-right direction).

[0056] Finally, the vertical displacement unit 53 is fixedly mounted on the second support platform of the horizontal displacement unit 52. Thus, the vertical displacement unit 53 will simultaneously inherit displacement in both the longitudinal and transverse directions. The end actuator of the vertical displacement unit 53 is rigidly connected directly to the negative pressure generating box 2.

[0057] By combining the three levels of displacement units described above—longitudinal, transverse, and vertical—the optimal capture distance between the conical negative pressure adsorption port 12 and the hanging wire head is controlled.

[0058] In each displacement unit, the rotary motion output by a servo motor or stepper motor drives a precision ball screw (or sliding screw) to rotate via a coupling. The nut pair mating with the screw is rigidly connected to the support worktable of each unit (the first support worktable, the second support worktable, and the lifting platform of the vertical unit). By controlling the rotation angle and direction of the motor, the linear displacement of the support worktable along the corresponding axial direction can be precisely and linearly converted.

[0059] like Figure 4 As shown, the negative pressure interface 21 of the negative pressure generating box 2 is connected to an external negative pressure power source through a flexible guide pipe 22.

[0060] When the space adjustment mechanism 5 drives the negative pressure generating box 2 and its integrated pretreatment unit to perform longitudinal, lateral or vertical displacement in three-dimensional space, if a rigid connection is used, the pipeline will generate great stress, severely limiting the range of motion, and even causing interface damage or leakage.

[0061] The flexible guide tube 22 (typically made of wear-resistant, fold-resistant corrugated hose or special rubber tubing) acts as a "flexible joint" in the dynamic connection. It possesses sufficient flexibility and extensibility to accommodate and absorb the anisotropic displacements and complex deformations generated during the movement of the space adjustment mechanism 5, thereby effectively "decoupling" the mechanical displacement of the moving parts from the fixed external air source piping system. This allows the negative pressure generating box 2 to complete its positioning stroke freely and unimpeded without adversely affecting the integrity, sealing, and flow field stability of the negative pressure air path.

[0062] like Figure 3 As shown, the negative pressure interface 21 of the negative pressure generating box 2 is higher than the bottom surface of the inner cavity of the negative pressure generating box 2, and the inner cavity of the negative pressure generating box 2 that is lower than the negative pressure interface 21 forms a storage cavity for storing wire ends.

[0063] Because the negative pressure interface 21 is located at a relatively high position, a low-level sedimentation area is naturally formed in the inner cavity space below the horizontal plane of the negative pressure interface 21. This area is functionally defined as a waste settling and temporary storage cavity.

[0064] When the short wire scraps cut by heat melting are carried by the negative pressure airflow through the fixed guide tube 13 into the negative pressure generating box 2, the airflow carries the scraps toward the negative pressure interface 21 above. However, since the wire scraps themselves have a small mass, in areas where the airflow direction changes or the speed decreases (especially in the relatively spacious space inside the box), gravity will cause the wire scraps to partially or completely "fall" from the airflow.

[0065] The falling waste material falls directly into the waste settling and storage chamber below the negative pressure interface 21. This achieves preliminary gas-solid separation: the airflow continues to rise and is drawn out from the interface, while the solid waste is trapped and temporarily stored in the bottom chamber.

[0066] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A kind of anti-winding excess thread active extraction and shearing device for skein shuttle shell processing, applied to the thread tip suspended from the shuttle shell after the shuttle shell is grabbed in storage tray, it is characterized in that, The application relates to a yarn end pre-treatment device, which comprises: a suction pre-treatment pipe with a suction channel extending in a vertical direction, a top end of the suction channel constituting a negative pressure suction port for capturing and sucking a yarn end hanging from a bobbin, and a bottom end of the suction channel being connected to a fixed guide cylinder with a closed end, an axis of the fixed guide cylinder being horizontal; a negative pressure generating box being connected to the fixed guide cylinder and being provided with a negative pressure interface laterally along the fixed guide cylinder, the negative pressure interface being used for forming a directional airflow in the suction channel and the fixed guide cylinder to complete picking and conveying of the yarn end; a melting separation module being arranged on one side of the suction pre-treatment pipe, the melting separation module being provided with a hot melting shearing head coaxially arranged with the suction channel, and being used for implementing hot melting cutting when the yarn end is in a taut state.

2. A kind of winding anti-winding type excess line active extraction and shearing device for skein shuttle shell processing according to claim 1, characterized by, The yarn end pre-treatment device further comprises a yarn stretching mechanism, the yarn stretching mechanism comprising: a traction roller being coaxially rotatably arranged inside the closed end of the fixed guide cylinder; a servo driving component being drivingly connected to the traction roller; wherein the traction roller performs a rotating motion under the controlled driving of the servo driving component, so as to exert an axial traction force on the yarn end entering the suction channel through the negative pressure suction port, to realize the operation of stretching the yarn end to a preset taut length.

3. A kind of winding preventing type excess wire active extraction and shearing device for skein shuttle shell processing according to claim 2, characterized in that, The traction roller is in a conical structure, an outer diameter of the traction roller tapering in an axial direction from the closed end of the fixed guide cylinder to the negative pressure interface, the tapering geometry being used for guiding the yarn wound on the surface of the traction roller to generate an axial sliding force, so as to promote the yarn to gather to a thin diameter end of the traction roller and to be separated.

4. The anti-winding excess thread active extraction and cutting device for use in the treatment of the shuttle of a skein according to any one of claims 1-3, characterized in that, The negative pressure suction port forms a conical flared portion, an inner diameter of the flared portion tapering downward in an airflow ejection direction.

5. The anti-winding excess thread active extraction and cutting device for use in the treatment of the shuttle of a skein according to any one of claims 1-3, characterized in that, The melting separation module further comprises: a linear driving component being arranged at a top end of the negative pressure generating box and having an output rod performing a reciprocating motion along a radial direction of the suction channel; a hot melting shearing head being mounted at a distal end of the output rod of the linear driving component, the hot melting shearing head having a high-temperature cutting edge, a cutting-in plane of the cutting edge being horizontally aligned with a central axis of the suction channel, and being used for implementing radial cutting under driving to complete hot melting separation of the taut yarn.

6. A kind of winding around prevention type excess wire active extraction and shearing device for skein shuttle shell treatment according to claim 5, with the characteristics that, The high-temperature cutting edge of the hot melting shearing head and the output rod of the linear driving component form a non-perpendicular acute angle relationship, to form an oblique cutting track with a progressive shearing effect.

7. The anti-winding excess thread active extraction and cutting device for use in the treatment of a shuttle for a skein according to any one of claims 1-3, characterized in that, The yarn end pre-treatment device further comprises a space adjusting mechanism, the space adjusting mechanism having a carrying table capable of being displaced in two orthogonal directions of a longitudinal direction and a transverse direction; wherein the negative pressure generating box is fixedly mounted on the carrying table of the space adjusting mechanism, so that the whole suction pre-treatment pipe can be adjusted according to a hanging position of the yarn end.

8. The anti-winding type surplus thread active extraction and cutting device for the package shuttle treatment according to claim 7, characterized in that, The space adjusting mechanism comprises: a longitudinal displacement unit having a first carrying workbench; a transverse displacement unit being fixedly mounted on the first carrying workbench of the longitudinal displacement unit and having a second carrying workbench; a vertical displacement unit being fixedly mounted on the second carrying workbench of the transverse displacement unit, and having a distal end execution end fixedly connected with the negative pressure generating box.

9. The anti-winding type surplus yarn active extraction and cutting device for a roving shuttle shell treatment according to claim 8, characterized in that, The negative pressure interface of the negative pressure generating box is communicated with an external negative pressure power source through a flexible flow guide pipeline.

10. The anti-winding excess thread active extraction and cutting device for use in the treatment of a shuttle for a skein according to any one of claims 1-3, characterized in that, The negative pressure interface of the negative pressure generating box is higher than the inner cavity bottom surface of the negative pressure generating box, and the inner cavity lower than the negative pressure interface of the negative pressure generating box forms a storage cavity for storing the thread end.

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