A line doffing machine and doffing system

Abstract

The application provides a production line silk falling vehicle and a silk falling system, and relates to the technical field of textile equipment. The production line silk falling vehicle comprises a movable vehicle body and at least one push roller assembly. The push roller assembly comprises a push roller. The push roller is movably arranged on the movable vehicle body. The push roller can move reciprocally along the axial direction. The axial direction of the push roller and the longitudinal direction of the movable vehicle body are arranged perpendicularly. The application can improve the accurate positioning and the centering efficiency of the silk falling vehicle before the winding head, effectively improve the success rate and the production efficiency of the silk falling operation, and reduce the damage to the equipment and the silk cake.

Description

Technical Field

[0001] This application relates to the field of textile equipment technology, and in particular to a production line doffing machine and doffing system. Background Technology

[0002] In the chemical fiber production process, a fully loaded yarn cake needs to be removed from the winding head and transferred to the next process; this process is called doffing. Traditional manual doffing is inefficient, labor-intensive, and prone to contaminating or damaging the yarn cake. Therefore, doffing machines have become standard equipment in modern spinning workshops. However, doffing machines require a significant amount of time to ensure precise stopping in front of each winding head, ensuring accurate alignment between the yarn pushing mechanism and the winding head chuck. Any slight deviation in positioning can lead to failed yarn pushing or damage to the winding head and yarn cake. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a production line doffing machine and doffing system that can improve the accuracy of the doffing machine in front of the winding head and the centering efficiency, effectively improve the success rate and production efficiency of doffing operations, and reduce damage to equipment and yarn cake.

[0004] This application provides the following technical solution: In a first aspect, embodiments of this application provide a production line unwinding cart, the production line unwinding cart comprising: Movable vehicle body; At least one push roller assembly, the push roller assembly including a push roller movably disposed on the movable vehicle body, the push roller being capable of reciprocating along its axial direction, the axial direction of the push roller being perpendicular to the longitudinal direction of the movable vehicle body.

[0005] In some embodiments of the first aspect, the push roller assembly includes a sliding drive member disposed on the movable vehicle body and connected to the push roller, the sliding drive member being used to drive the push roller to reciprocate axially.

[0006] In some embodiments of the first aspect, the push roller and the movable vehicle body slide in a axial engagement along the push roller.

[0007] In some embodiments of the first aspect, the sliding drive includes a sliding lead screw, a sliding slide table, and a sliding force unit. The sliding lead screw and the sliding slide table are threadedly connected. The axial direction of the sliding lead screw is parallel to the axial direction of the push roller. The push roller is disposed on the sliding slide table. The sliding force unit is disposed on the movable vehicle body. The sliding force unit is also connected to the sliding lead screw. The sliding force unit is used to drive the sliding lead screw to rotate, thereby driving the push roller to move axially.

[0008] In some embodiments of the first aspect, the sliding drive is disposed below the push roller.

[0009] In some embodiments of the first aspect, the pusher assembly further includes an ejector disposed on the movable vehicle body, the ejector being used to push the yarn cake passing through the pusher axially to disengage the yarn cake from the pusher.

[0010] In some embodiments of the first aspect, the push roller has a hollow channel, and the outer wall of the push roller has a groove that passes through the hollow channel, both the groove and the hollow channel extending along the axial direction of the push roller; The ejector includes a contact portion and a pushing portion. The contact portion is located outside the push roller, and the pushing portion is at least housed within the hollow channel. The contact portion has a connecting end that is movably inserted through the groove and the central hole channel, and the connecting end is connected to the pushing portion. The pushing portion is used to drive the contact portion to move axially along the push roller.

[0011] In some embodiments of the first aspect, the pushing part includes an ejector screw, an ejector slide, and an ejector power unit. The ejector screw and the ejector slide are threadedly connected. Both the ejector screw and the ejector slide are housed within the hollow channel. The axial direction of the ejector screw is parallel to the axial direction of the push roller. The connecting end is connected to the ejector slide. The ejector power unit is disposed on the movable vehicle body and is also drivenly connected to the ejector screw. The ejector power unit is used to drive the ejector screw to rotate, thereby causing the contact part to move axially.

[0012] In some embodiments of the first aspect, the lead screw and the inner wall of the hollow channel are rotatably connected.

[0013] Secondly, embodiments of this application also provide a wire doffing system, the wire doffing system including a wire doffing vehicle as described in any of the above embodiments.

[0014] The embodiments of this application have the following advantages: This application provides a doffing carriage for a production line. When the doffing carriage moves along the production line to the vicinity of the winding head, its own centering motion can effectively correct the stopping error of the carriage in the forward direction because the axial movement direction of the push roller is perpendicular to the travel direction. This means that the navigation and stopping accuracy requirements of the doffing carriage are greatly reduced, the control system is simplified, and the robustness and efficiency of the carriage operation are improved. The push roller can reciprocate along its axial direction (perpendicular to the longitudinal direction of the carriage), and actively adjusts its position when approaching the winding head, so that the axis of the push roller is automatically aligned with the center of the winding head chuck. After centering is completed, the push roller smoothly pushes out along the axial direction, pushing the full roll of yarn from the winding head chuck to the carriage bearing position. The entire process reduces the dependence on positioning accuracy through mechanical adaptive matching.

[0015] Therefore, this application improves positioning tolerance and centering efficiency. The axial floating adjustment function of the push roller can compensate for the stopping deviation of the doffing carriage, eliminating the need for repeated adjustments to the carriage position, significantly shortening the centering time, and improving operational continuity. Since the axial movement direction of the push roller is perpendicular to the carriage travel direction, it reduces manual intervention and carriage fine-tuning time, speeds up the doffing rhythm, improves the overall efficiency of the production line, and reduces operational intensity.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This illustration shows a structural schematic diagram from one perspective of a production line doffing machine provided in an embodiment of this application; Figure 2 A schematic diagram of the structure of a pusher assembly provided in an embodiment of this application is shown from one perspective; Figure 3 This illustration shows a structural schematic diagram of a pusher assembly provided by an embodiment of this application from another perspective.

[0019] Explanation of key component symbols: 100-Movable vehicle body; 200-Push roller; 210-Slide groove; 300-Sliding drive component; 310-Sliding slide table; 320-Sliding lead screw; 330-Sliding force component; 400-Ejection component; 410-Contact part; 420-Pushing part. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] In the related technologies, during the chemical fiber production process, a fully rolled yarn cake needs to be removed from the winding head and transferred to the next process; this process is called doffing. Traditional manual doffing is inefficient, labor-intensive, and prone to contaminating or damaging the yarn cake. Therefore, doffing machines have become standard equipment in modern spinning workshops. However, doffing machines require a significant amount of time to ensure precise stopping in front of each winding head, ensuring accurate alignment between the yarn pushing mechanism and the winding head chuck. Any slight deviation in positioning can lead to failure of the yarn pushing action or damage to the winding head and yarn cake.

[0026] As shown in Figures 1 to 3, in order to solve the above-mentioned technical problems, this application provides a production line doffing cart. The production line doffing cart includes a movable cart body 100 and at least one push roller assembly. The push roller assembly includes a push roller 200, which is movably disposed on the movable cart body 100. The push roller 200 can reciprocate along its axial direction, and the axial direction of the push roller 200 is perpendicular to the longitudinal direction of the movable cart body 100.

[0027] In these embodiments, a production line doffing cart is provided for automatically and efficiently removing a full roll of yarn from a winding head on a chemical fiber filament production line.

[0028] For example, the movable vehicle body 100 is equipped with drive wheels and steering wheels at its bottom, controlled by an onboard control system (not shown in the figure), and can travel along the tracks on both sides of the spinning production line or a preset path. The vehicle body is also equipped with necessary components such as a battery compartment and a control cabinet.

[0029] The pusher roller assembly is fixedly mounted on the front of the movable carriage 100 (i.e., the side facing the winding head) by a support frame. The core component of the pusher roller assembly is the pusher roller 200. The pusher roller 200 is mounted on a pusher roller 200 seat. Importantly, the pusher roller 200 seat is connected to the movable carriage 100 via a linear guide pair, allowing the entire pusher roller 200 to reciprocate along its axial direction.

[0030] When the doffing carriage stops in front of the winding head, the axial direction of the push roller 200 is perpendicular to the longitudinal direction (i.e., the direction of travel) of the movable carriage 100. The doffing carriage travels to the vicinity of the target winding head. The onboard control system controls the carriage to position itself. Subsequently, the push roller 200 is pushed out along its axial direction. Because the axial movement of the push roller 200 is a relatively short-range, high-precision linear motion, its positioning accuracy is easily controlled. The push roller 200 is precisely aligned with the winding head. Then, the yarn cake is pushed onto the push roller 200 by the ejection mechanism. After completion, the push roller 200 retracts axially, and the doffing carriage moves to the next station.

[0031] When the doffing carriage needs to doff wire to two adjacent winding heads on the same side, the carriage only needs to stop at the appropriate position once. First, by moving the movable carriage body 100, the push roller 200 is aligned with the first winding head to complete the doffing operation; then, the movable carriage body 100 moves again to align the push roller 200 with the second winding head to perform the doffing. This avoids the need for the entire doffing carriage to repeatedly move and adjust its position, greatly improving production efficiency.

[0032] This application provides a doffing carriage for a production line. When the doffing carriage moves along the production line to the vicinity of the winding head, the axial movement direction of the push roller 200 is perpendicular to the travel direction, and its own centering motion can effectively correct the stopping error of the carriage in the forward direction. This means that the navigation and stopping accuracy requirements of the doffing carriage are greatly reduced, the control system is simplified, and the robustness and efficiency of the carriage operation are improved. The push roller 200 can reciprocate along its axial direction (perpendicular to the longitudinal direction of the carriage), and actively adjusts its position when approaching the winding head, so that the axis of the push roller 200 is automatically aligned with the center of the winding head chuck. After centering is completed, the push roller 200 is smoothly pushed out along the axial direction, pushing the full roll of yarn from the winding head chuck to the carriage bearing position. The entire process reduces the dependence on positioning accuracy through mechanical adaptive matching.

[0033] Therefore, this application improves positioning tolerance and centering efficiency. The axial floating adjustment function of the push roller 200 can compensate for the stopping deviation of the doffing carriage, eliminating the need for repeated adjustments to the carriage position, significantly shortening the centering time, and improving operational continuity. Since the axial movement direction of the push roller 200 is perpendicular to the carriage travel direction, it reduces manual intervention and carriage fine-tuning time, speeds up the doffing rhythm, improves the overall efficiency of the production line, and reduces operational intensity.

[0034] In some embodiments, the push roller assembly includes a sliding drive 300 disposed on the movable vehicle body 100 and connected to the push roller 200. The sliding drive 300 is used to drive the push roller 200 to move axially back and forth.

[0035] In these embodiments, the push roller assembly further includes a sliding drive 300. The sliding drive 300 is fixedly mounted on the movable vehicle body 100, and its output end is connected to the push roller 200 via a connector. The sliding drive 300 provides power to drive the push roller 200 to reciprocate linearly along its axial direction.

[0036] For example, the sliding drive component 300 can be selected from any one or more of the following: an electric actuator, a servo motor with a lead screw and nut mechanism, a cylinder, or a hydraulic cylinder. In this embodiment, an electric actuator is used as an example. The housing of the electric actuator is fixed to the movable vehicle body 100 by bolts, and its telescopic rod end is connected to the roller shaft end of the push roller 200.

[0037] For example, after the doffing machine completes its positioning, the sliding drive 300 is activated, the electric push rod extends, and pushes the push roller 200 forward along the axial direction, smoothly pushing the yarn cake out of the winding head chuck. After doffing is completed, the electric push rod retracts, driving the push roller 200 to reset, preparing for the next operation.

[0038] The direct drive method using the sliding drive component 300 offers advantages such as fast response speed, high control precision, and smooth operation. It effectively avoids errors and delays caused by manual or indirect transmission, further improving the reliability and automation level of the wire-feeding action. Of course, in other embodiments, a manual drive method can also be used instead of the sliding drive component 300.

[0039] In some embodiments, the push roller 200 and the movable vehicle body 100 slide along the axial direction of the push roller 200.

[0040] In these embodiments, this application provides a specific guide structure implementation to ensure the stability and straightness of the push roller 200 during axial movement and to prevent deflection or jamming during the movement.

[0041] The push roller 200 and the movable vehicle body 100 are in a sliding fit along the axial direction of the push roller 200. Specifically, the movable vehicle body 100 is provided with a guide structure parallel to the axial direction of the push roller 200. This guide structure includes a guide rail fixed to the vehicle body and a slider mounted on the push roller 200 or its support frame. The push roller 200 achieves stable sliding along its axial direction through the cooperation of the slider and the guide rail.

[0042] In this embodiment, a high-precision linear guide is used, and the slider and the guide are in a rolling fit, resulting in low frictional resistance and smooth movement. One end of the roller shaft of the push roller 200 is connected to the sliding drive 300, and the other end or the middle is fixed to the slider through a connecting plate, so that the push roller 200 can perform linear reciprocating motion strictly along the extension direction of the guide rail (i.e., the axial direction of the push roller 200) under the push of the sliding drive 300.

[0043] Of course, the guide structure can also take other forms, such as: setting a guide sleeve (not shown) on the vehicle body, with the shaft of the push roller 200 inserted into the sleeve to form a sliding pair. Alternatively, dovetail groove guide rails, V-shaped guide rails, or other structures can be used. As long as relative sliding between the push roller 200 and the vehicle body along the axial direction of the push roller 200 can be achieved, it falls within the protection scope of this application.

[0044] By setting the aforementioned sliding fit structure, the motion freedom of the push roller 200 is effectively constrained, allowing it to move only along the axial direction, avoiding radial swaying or torsion, and significantly improving the centering accuracy and repeatability of the wire pushing action. Even under high-frequency, long-term operating conditions, it can maintain good motion performance and extend the service life of the equipment.

[0045] In some embodiments, the sliding drive 300 includes a sliding screw 320, a sliding table 310, and a sliding force unit 330. The sliding screw 320 and the sliding table 310 are threadedly connected. The axial direction of the sliding screw 320 is parallel to the axial direction of the push roller 200. The push roller 200 is mounted on the sliding table 310. The sliding force unit 330 is mounted on the movable vehicle body 100 and is also connected to the sliding screw 320. The sliding force unit 330 is used to drive the sliding screw 320 to rotate, thereby driving the push roller 200 to move axially.

[0046] In these embodiments, this application provides a sliding drive component 300 implementation scheme, which adopts a lead screw and nut transmission mechanism to achieve high-precision and smooth driving of the axial movement of the push roller 200.

[0047] The sliding slide 310 and the sliding lead screw 320 form a threaded transmission connection, that is, the sliding slide 310 is sleeved on the sliding lead screw 320 as a nut part, and the two form a lead screw and nut pair.

[0048] Specifically, the axial direction of the sliding screw 320 is parallel to the axial direction of the push roller 200 to ensure that the transmission direction is consistent with the required movement direction of the push roller 200. The push roller 200 is fixedly mounted on the sliding table 310 and moves along the axial direction of the sliding screw 320 together with the sliding table 310.

[0049] A sliding force unit 330 is mounted on the movable vehicle body 100. Its output end is connected to a sliding lead screw 320 via a coupling or gear transmission mechanism, driving the sliding lead screw 320 to rotate around its own axis. In this embodiment, the sliding force unit 330 is selected as a servo motor, which has the advantages of fast response and high positioning accuracy. The output shaft of the servo motor is directly connected to one end of the sliding lead screw 320 via a flexible coupling. When the servo motor rotates forward or reverse, it drives the sliding lead screw 320 to rotate synchronously.

[0050] Since the sliding table 310 is restricted by mechanical structures (such as guide structures) to only translate along the axial direction and not rotate, when the sliding screw 320 rotates, it will drive the sliding table 310 to make linear reciprocating motion along its axial direction, thereby driving the push roller 200 to extend or retract synchronously.

[0051] In some embodiments, the sliding drive 300 is disposed below the push roller 200.

[0052] In these embodiments, the present application optimizes the spatial layout of the sliding drive component 300 to make reasonable use of the vehicle's internal space, lower the overall center of gravity, facilitate maintenance, and avoid interference with the silk cake transfer path.

[0053] The sliding drive unit 300 is disposed entirely below the push roller 200. Specifically, the transmission system consisting of the sliding screw 320, the sliding slide 310, and the sliding force unit 330 is arranged horizontally in the lower region of the movable vehicle body 100, located below the horizontal plane where the axis of the push roller 200 is located.

[0054] In this embodiment, the axial height of the push roller 200 matches the axial height of the winding head chuck to ensure coaxial alignment of the wire pushing action. The sliding drive component 300 is mounted on the bottom reinforcing beam of the vehicle frame, and its highest point is still lower than the axial position of the push roller 200, thereby achieving a spatial relationship below the push roller 200.

[0055] For example, the sliding lead screw 320 is horizontally positioned, with one end supported on the vehicle body via a bearing seat, and the other end connected to the sliding force unit 330 (such as a servo motor). The sliding slide table 310 is located slightly rearward above the sliding lead screw 320 and extends upward via a connecting plate, being fixedly connected to the roller shaft or support frame of the push roller 200. When the sliding force unit 330 drives the sliding lead screw 320 to rotate, the sliding slide table 310 moves along the lead screw axis, and drives the push roller 200 to extend or retract synchronously via the connecting plate.

[0056] By placing the sliding drive component 300 on the push roller 200, the space utilization rate is high, making full use of the space under the vehicle body and avoiding the crowded arrangement of drive components around the push roller 200.

[0057] In some embodiments, the pusher assembly further includes a pusher 400 disposed on the movable carriage 100, the pusher 400 being used to push the yarn cake passing through the pusher 200 axially to disengage the yarn cake from the pusher 200.

[0058] In these embodiments, the pusher 400 is disposed on the movable carriage 100, located radially outside the pusher roller 200, and opposite to the end of the pusher roller 200. The pusher 400 is used to push the yarn cake axially to completely disengage it from the pusher roller 200, thereby achieving roller disengagement.

[0059] For example, the pusher 400 can be a cylinder-driven push plate, an electric push rod, or a swing-arm type lever. In this embodiment, a miniature cylinder is used as the power source, and its piston rod is connected to a push plate. The push roller 200 pushes out the yarn cake.

[0060] In some embodiments, the push roller 200 has a hollow channel, and the outer wall of the push roller 200 has a groove 210 that passes through the hollow channel. Both the groove 210 and the hollow channel extend along the axial direction of the push roller 200. The pusher 400 includes a contact portion 410 and a pusher portion 420. The contact portion 410 is located on the outside of the push roller 200, and the pusher portion 420 is at least accommodated within the hollow channel. The contact portion 410 has a connecting end that is movably inserted through the groove 210 and the central hole channel, and the connecting end is connected to the pusher portion 420. The pusher portion 420 is used to drive the contact portion 410 to move along the axial direction of the push roller 200.

[0061] In these embodiments, this application provides a highly integrated ejector 400 structure, which uses a built-in drive and external linkage to enable the yarn cake to automatically and smoothly slide off the pusher roller 200 after it leaves the winding head, while avoiding the occupation and interference of external additional mechanisms on the working space.

[0062] The push roller 200 has a hollow structure with an axially extending hollow channel inside. On the outer wall of the push roller 200, an axially extending groove 210 is formed, which communicates with the hollow channel to form a guide path that connects the inside and outside.

[0063] The contact portion 410 is located on the outer side of the push roller 200 and is used to contact the end face of the yarn cake and apply a pushing force during the unrolling stage. For example, the contact portion 410 is a push plate, extending circumferentially along the push roller 200. Alternatively, it can be configured as a contact block.

[0064] The pusher 420 is at least partially housed within the hollow channel of the pusher roller 200, for example, as a push rod or piston structure that can slide axially.

[0065] The contact part 410 has a connecting end that extends from the slide groove 210 into the hollow channel and is fixedly connected to the push part 420.

[0066] Specifically, the connecting end can be a pin or a connecting rod, with an outer diameter slightly smaller than the width of the slide groove 210, so that the contact part 410 can slide axially on the surface of the push roller 200 along the slide groove 210 through the connecting end. When the pushing part 420 moves axially along the hollow channel under power drive (such as pneumatic, hydraulic or motor drive), it drives the contact part 410 to move synchronously along the axial direction of the push roller 200 through the connecting end.

[0067] For example, in this embodiment, the pushing part 420 is driven by a miniature cylinder disposed at the rear end of the push roller 200. The piston rod of the miniature cylinder extends into the hollow channel and is connected to the pushing part 420.

[0068] The length of the slide 210 is set according to the required stroke for the yarn cake to unwind, ensuring that the contact part 410 has sufficient range of motion. Limiting bosses or buffer structures can be provided at both ends of the slide 210 to prevent the connecting end from coming off.

[0069] Clearly, the pusher 420 is internally mounted, occupying no external space, resulting in a clean overall appearance and facilitating operation in narrow spaces between spinning machines. The moving parts are shielded by the pusher roller 200 body, preventing accidental contact by operators or surrounding equipment. The chute 210 and the hollow channel together form a high-precision guiding system, ensuring smooth and unbiased movement of the contact part 410.

[0070] In some embodiments, the pushing unit 420 includes an ejector screw, an ejector slide, and an ejector power unit. The ejector screw and the ejector slide are threadedly connected. Both the ejector screw and the ejector slide are housed within a hollow channel. The axial direction of the ejector screw is parallel to the axial direction of the push roller 200. The connecting end is connected to the ejector slide. The ejector power unit is mounted on the movable vehicle body 100 and is also connected to the ejector screw. The ejector power unit is used to drive the ejector screw to rotate, thereby causing the contact part 410 to move axially.

[0071] In these embodiments, the present application further optimizes the pusher 420 in the pusher 400 by adopting a built-in lead screw and nut transmission mechanism to achieve high-precision, smooth drive and closed-loop control of the roll removal action.

[0072] Specifically, the lead screw and the ejector slide form a threaded transmission connection, with the ejector slide acting as a nut on the lead screw to form a precision lead screw pair. Both the lead screw and the ejector slide are housed within the hollow channel of the push roller 200, and the axial direction of the lead screw is parallel to (preferably coaxial or strictly parallel to) the axial direction of the push roller 200, ensuring that the transmission direction is consistent with the desired motion direction.

[0073] The ejection slide is fixedly connected to the aforementioned connecting end (e.g., by thread or pin). When the ejection slide moves along the axial direction of the ejection screw, it drives the connecting end and its connected contact part 410 to slide synchronously along the axial direction of the push roller 200.

[0074] The ejector power unit is mounted on the movable body 100, located outside the rear end of the push roller 200. Its output end extends into the hollow channel via a coupling or flexible drive shaft and is connected to the rear end of the ejector screw to achieve power transmission. In this embodiment, the ejector power unit is selected as a micro servo motor.

[0075] In some embodiments, the lead screw and the inner wall of the hollow channel are rotatably connected.

[0076] In these embodiments, the present application optimizes the rotary support structure of the lead screw to ensure that it can rotate smoothly and reliably in the hollow channel, avoiding transmission jamming or wear caused by radial runout or axial movement.

[0077] The lead screw and the inner wall of the hollow channel of the push roller 200 are rotatably connected. Specifically, at least one bearing seat is provided on the inner wall of the hollow channel, and a rolling bearing or an oil-impregnated bushing (sliding bearing) is installed in the bearing seat. The rod of the lead screw passes through the inner ring of the bearing, so that its outer circumferential surface is rotatably engaged with the inner wall of the hollow channel through the bearing.

[0078] In this embodiment, a set of bearing seats and bearings are provided at the front and rear ends of the hollow channel to form a two-end support structure, so as to improve the rotational stiffness and stability of the lead screw and prevent it from bending or vibrating when rotating at high speed.

[0079] Specifically, the front bearing housing is located near the output end of the push roller 200 and is used to support the front part of the lead screw. The rear bearing housing is located near the tail end of the push roller 200 and is adjacent to the drive shaft of the push-out power unit, and is used to support the rear part of the lead screw and transmit torque.

[0080] The bearings can be selected as deep groove ball bearings or angular contact bearings, which have the advantages of high load-bearing capacity, low frictional resistance, and long service life. The bearing housing can be fixed to the inner wall of the hollow channel by interference fit or threaded connection.

[0081] When the power unit drives the lead screw to rotate, the lead screw rotates around its own axis, while the bearing effectively constrains the radial displacement of the lead screw, allowing it to rotate freely while bearing part of the radial load, ensuring a smooth and stable transmission process.

[0082] In some embodiments, this application also provides a wire doffing system, which includes a wire doffing machine as described in any of the above embodiments.

[0083] Since the aforementioned wire doffing machine in the production line has the aforementioned technical effects, the wire doffing system, including the wire doffing machine in this production line, should have the same technical effects, which will not be elaborated here.

[0084] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0085] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0086] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A line doffer comprising: The production line's wire unwinding machine includes: Movable vehicle body; At least one push roller assembly, the push roller assembly including a push roller movably disposed on the movable vehicle body, the push roller being capable of reciprocating along its axial direction, the axial direction of the push roller being perpendicular to the longitudinal direction of the movable vehicle body.

2. A line doffer according to claim 1, characterized in that The push roller assembly includes a sliding drive component, which is disposed on the movable vehicle body and is also connected to the push roller. The sliding drive component is used to drive the push roller to move axially back and forth.

3. A line doffer according to claim 2, wherein, The push roller and the movable vehicle body slide together along the axial direction of the push roller.

4. A line doffer according to claim 3, wherein, The sliding drive component includes a sliding lead screw, a sliding slide table, and a sliding force unit. The sliding lead screw and the sliding slide table are threadedly connected. The axial direction of the sliding lead screw is parallel to the axial direction of the push roller. The push roller is disposed on the sliding slide table. The sliding force unit is disposed on the movable vehicle body. The sliding force unit is also connected to the sliding lead screw. The sliding force unit is used to drive the sliding lead screw to rotate, thereby driving the push roller to move axially.

5. A line doffer according to any one of claims 2 to 4, characterized in that, The sliding drive component is located below the push roller.

6. The line doffer according to claim 1, wherein, The pusher assembly further includes a pusher, which is disposed on the movable vehicle body. The pusher is used to push the yarn cake passing through the pusher to move axially, so that the yarn cake is disengaged from the pusher.

7. A line doffer according to claim 6, wherein, The push roller has a hollow channel, and the outer wall of the push roller has a groove that passes through the hollow channel. Both the groove and the hollow channel extend along the axial direction of the push roller. The ejector includes a contact portion and a pushing portion. The contact portion is located outside the push roller, and the pushing portion is at least housed within the hollow channel. The contact portion has a connecting end that is movably inserted through the groove and the hollow channel, and the connecting end is connected to the pushing portion. The pushing portion is used to drive the contact portion to move axially along the push roller.

8. The line doffer according to claim 7, wherein, The pushing unit includes an ejector screw, an ejector slide, and an ejector power unit. The ejector screw and the ejector slide are threadedly connected. Both the ejector screw and the ejector slide are housed within the hollow channel. The axial direction of the ejector screw is parallel to the axial direction of the push roller. The connecting end is connected to the ejector slide. The ejector power unit is mounted on the movable vehicle body and is also connected to the ejector screw. The ejector power unit drives the ejector screw to rotate, thereby causing the contact part to move axially.

9. The line doffer according to claim 8, wherein, The lead screw is rotatably connected to the inner wall of the hollow channel.

10. A doffing system, characterized by The wire doffing system includes the wire doffing machine as described in any one of claims 1 to 9.

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