A silk falling system

Abstract

The application provides a silk falling system, and relates to the technical field of textile equipment. The silk falling system comprises a production line silk falling vehicle, a silk cake turnover table and a silk cake connecting vehicle. The silk cake turnover table comprises a movable turnover roller shaft assembly, so that the turnover roller shaft assembly is switched between a silk falling docking state and a connecting docking state. In the silk falling docking state, the production line silk falling vehicle can be moved to dock with the turnover roller shaft assembly to deliver the silk cake to the turnover roller shaft assembly. In the connecting docking state, the silk cake connecting vehicle can be moved to dock with the turnover roller shaft assembly to receive the silk cake from the turnover roller shaft assembly. The application replaces the existing industrial mechanical arm to complete the receiving, turning, moving and unloading operations of the silk cake, and effectively improves the production efficiency.

Description

Technical Field

[0001] This application relates to the field of textile equipment technology, and more particularly to a doffing system. Background Technology

[0002] In the industrial textile sector, yarn cakes, as intermediate products in the spinning process, need to be unloaded from the winding machine after winding and transferred to a balancing room or temporary storage area for intermediate storage. Currently, common automated unloading and transfer solutions often employ multi-axis industrial robotic arms in conjunction with customized end effectors to grasp, transfer, and place the yarn cakes. While such robotic arm systems offer high positioning accuracy and maneuverability, in practical applications, robotic arm operations typically involve sequential grasping, transferring, and placing of single spindles or a small number of spindles. Furthermore, the entire production line is often spread over a large area, making robotic arm operations time-consuming, limiting process cycle time, and impacting production efficiency. 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 yarn feeding system to replace the existing industrial robotic arm in completing the receiving, flipping, transferring and unloading of yarn cakes, thereby effectively improving production efficiency.

[0004] This application provides the following technical solution: This application provides a doffing system, which includes a doffing car, a roll turning table, and a roll receiving car. The roll turning table includes a movable turning roller assembly, which can switch between a doffing docking state and a receiving docking state. When the doffing docking state is reached, the doffing car of the production line can move to dock with the flip roller assembly to transfer the yarn cake to the flip roller assembly. In the docking state, the yarn cake docking car can move to dock with the flipping roller assembly to receive from the flipping roller assembly.

[0005] In some embodiments, the flipping roller assembly includes a flipping roller; The production line doffing car includes at least one doffing roller assembly, which includes a doffing roller; in the doffing docking state, the doffing roller is axially docked with the flipping roller to convey the yarn cake. The silk cake transfer vehicle includes at least one transfer roller assembly, which includes a transfer roller; in the transfer docking state, the transfer roller is axially docked with the flipping roller to transfer the silk cake.

[0006] In some embodiments, the silk cake turning table further includes a turning drive assembly, which includes a turning support and a turning mounting component. The turning roller is disposed on the turning mounting component, and the turning mounting component is rotatably disposed on the turning support.

[0007] In some embodiments, at least one of the doffing roller assembly, the flipping roller assembly, and the connecting roller assembly includes a pusher for axially moving the yarn cake passing through the roller to disengage the yarn cake from the roller.

[0008] In some embodiments, the roller has a hollow channel, and the outer wall of the roller has a groove that passes through the hollow channel, both the groove and the hollow channel extending along the axial direction of the roller. The ejector includes a contact portion and a pushing portion. The contact portion is located on the outside of the roller shaft, 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 roller shaft.

[0009] In some embodiments, 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 roller shaft. The connecting end is connected to the ejector slide. The ejector power unit is disposed on the roller shaft 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.

[0010] In some embodiments, the lead screw and the inner wall of the hollow channel are rotatably connected.

[0011] In some embodiments, the axial direction of the connecting roller shaft is perpendicular to the longitudinal direction of the yarn cake connecting cart; The axial direction of the doffing roller shaft is perpendicular to the longitudinal direction of the doffing car on the production line.

[0012] In some embodiments, at least one of the production line doffing car, the yarn cake turning table, and the yarn cake connecting car includes a docking adjustment assembly, which is connected to the corresponding roller assembly and is used to drive the corresponding roller assembly to move axially along its roller.

[0013] In some embodiments, the production line doffing cart further includes a doffing support assembly, and the doffing roller assembly is slidably disposed on the doffing support assembly along the axial direction of the doffing roller. The silk cake transfer vehicle also includes a transfer support assembly, and the transfer roller assembly is slidably disposed on the transfer support assembly along the axial direction of the transfer roller.

[0014] The embodiments of this application have the following advantages: This application provides a yarn doffing system that uses a movable yarn cake turning table as a functional hub to decouple the two processes of receiving yarn cakes from the production line and transferring them to a transfer cart in space and time. The system changes the yarn cake's posture through a turning motion to adapt to subsequent processes. Receiving the yarn cake: The movable turning roller assembly first moves to the yarn doffing docking position. The production line doffing cart, carrying the newly unloaded yarn cake from the winding machine, moves to this position and precisely docks with the turning roller assembly. After docking, the production line doffing cart smoothly and horizontally transfers the yarn cake it carries onto the turning roller assembly via a conveyor mechanism (such as roller conveyors, chains, etc.). Turning and temporary storage: Once the yarn cake has been fully received, the turning roller assembly performs a turning motion (e.g., rotating 90 degrees), adjusting the yarn cake from a horizontal state to an upright state (or to another posture to adapt to the requirements of the transfer cart). This step is crucial, solving the problem of yarn cake posture conversion between the production line and storage transfer. The turning table also acts as a temporary buffer station during this process, allowing the yarn unloading car to return to the production line for the next round of work immediately after unloading, without waiting for the connecting car. Yarn cake transfer: The turning roller assembly carries the turned yarn cake and moves it to the docking position. The yarn cake connecting car moves to this position and docks with the turning roller assembly. After docking, the turning roller assembly smoothly transfers the vertical yarn cake onto the yarn cake connecting car via reverse conveying.

[0015] Therefore, this system enables parallel operation of the doffing car and the yarn cake receiving car on the production line. When the receiving car receives a rotated yarn cake, the doffing car can simultaneously deliver a new yarn cake to another station on the rotating table, or quickly return to the production line for the next feeding. This mode eliminates the waiting time caused by the sequential single-spindle operation of the robotic arm, greatly shortening the cycle time, and is particularly suitable for large-scale, multi-spindle production lines. Expensive and complex multi-axis industrial robotic arms and customized end effectors are replaced with dedicated rotating roller assemblies and moving docking mechanisms. The mechanical structure is simpler and more robust, reducing manufacturing costs and maintenance difficulty, while improving the long-term operational stability and reliability of the system. The rotating table, as an independent buffer and functional unit, separates the feeding and transfer processes. This allows both the doffing car and the yarn cake receiving car to be released more quickly, improving the utilization rate of individual equipment and reducing the risk of a complete production line shutdown due to a single equipment failure.

[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 A schematic diagram of the structure of a wire-feeding system provided in an embodiment of this application is shown from one perspective. Figure 2 This illustration shows a schematic diagram of an assembly structure of an ejector and a roller provided by an embodiment of this application from one perspective; Figure 3 This illustration shows a schematic diagram of an assembly structure of an ejector and a roller provided by an embodiment of this application from another perspective; Figure 4 This illustration shows a structural schematic diagram from one perspective of a production line doffing machine provided in an embodiment of this application; Figure 5 The diagram shows a structural schematic from one perspective of a silk cake shuttle vehicle provided in an embodiment of this application.

[0019] Explanation of key component symbols: 100 - Production line doffing cart; 110 - Doffing roller assembly; 120 - Doffing support assembly; 200 - Blanket turning table; 210 - Turning roller assembly; 300 - Blanket connecting cart; 310 - Connecting roller assembly; 320 - Connecting support assembly; 400 - Pushing part; 410 - Contact part; 420 - Pushing part; 500 - Roller; 510 - Groove. 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 industrial textile field, yarn cakes, as intermediate products in the spinning process, need to be unloaded from the winding machine after winding and transferred to a balancing room or temporary storage area for intermediate storage. Currently, common automated unloading and transfer solutions often employ multi-axis industrial robotic arms in conjunction with customized end effectors to grasp, transfer, and place the yarn cakes. While such robotic arm systems offer high positioning accuracy and maneuverability, in practical applications, robotic arm operations typically involve sequential grasping, transferring, and placing of single spindles or a small number of spindles. Furthermore, the entire production line is often geographically dispersed, making robotic arm operations time-consuming, limiting process cycle time, and impacting production efficiency.

[0026] As shown in Figures 1 to 5, in order to solve the above-mentioned technical problems, this application provides a doffing system. The doffing system includes a production line doffing car 100, a yarn cake turning table 200, and a yarn cake receiving car 300. The yarn cake turning table 200 includes a movable turning roller assembly 210, which allows the turning roller assembly 210 to switch between a doffing docking state and a receiving docking state. When the doffing docking state is reached, the doffing car 100 of the production line can move to dock with the flip roller assembly 210 to transfer the yarn cake to the flip roller assembly 210. In the docking state, the silk cake docking car 300 can move to dock with the flipping roller assembly 210 to receive from the flipping roller assembly 210.

[0027] The yarn feeding system provided in this application embodiment uses a movable yarn cake turning table 200 as a functional hub to decouple the two processes of receiving yarn cakes from the production line and transferring yarn cakes to a transfer vehicle in space and time. The turning action changes the yarn cake's posture to adapt to subsequent processes. The entire workflow is as follows: Receive the yarn cake (in the yarn dropping and docking state): The movable tilting roller assembly 210 first moves to the doffing docking position. The production line doffing cart 100, carrying the newly unloaded yarn cake from the winding machine, moves to this position and precisely docks with the tilting roller assembly 210. After docking, the production line doffing cart 100 smoothly and horizontally transfers the yarn cake it carries onto the tilting roller assembly 210 via a conveying mechanism (such as roller conveyor, chain, etc.).

[0028] Flipping and temporary storage (functional hub role): Once the yarn cake has been fully received, the flipping roller assembly 210 performs a flipping action (e.g., rotating 90 degrees) to adjust the yarn cake from a horizontal to an vertical position (or another orientation to accommodate the needs of the shuttle). This step is crucial, solving the problem of the yarn cake's orientation change between the production line and warehouse transfer. The flipping table also acts as a temporary buffer station during this process, allowing the yarn unloading cart 100 to return to the production line for the next round of work immediately after unloading, without waiting for the shuttle.

[0029] Transferring the silk cake (connecting and docking status): The flipping roller assembly 210, carrying the flipped yarn cake, moves to the docking position. The yarn cake docking cart 300 moves to this position and docks with the flipping roller assembly 210. After docking, the flipping roller assembly 210 smoothly transfers the vertical yarn cake onto the yarn cake docking cart 300 via reverse conveying.

[0030] Cyclic operation: After loading multiple yarn cakes, the yarn cake transfer cart 300 can transfer them to the balancing room or temporary storage area. At the same time, the flip roller assembly 210 can quickly move back to the yarn docking position to start the next work cycle.

[0031] Compared to the multi-axis industrial robotic arm solutions mentioned in the background section, this wire-feeding system has the following significant advantages: This system enables parallel operation of the doffing car 100 and the yarn cake receiving car 300 on the production line. When the receiving car receives a flipped yarn cake, the doffing car 100 can simultaneously deliver a new yarn cake to another station on the flipping table, or quickly return to the production line for the next unloading operation. This "receiving-flipping-unloading" assembly line mode completely eliminates the waiting time caused by the sequential single-spindle operation of the robotic arm, greatly shortens the cycle time, and is particularly suitable for large-scale, multi-spindle production lines.

[0032] The expensive and complex multi-axis industrial robotic arm and custom end effector were replaced with a dedicated tilting roller assembly 210 and a moving docking mechanism. The mechanical structure is simpler and more robust, reducing manufacturing costs and maintenance difficulty, while improving the long-term operational stability and reliability of the system.

[0033] The turnover table, as an independent buffer and functional unit, separates the material feeding and transfer processes. This allows the yarn doffing car 100 and the yarn cake transfer car 300 on the production line to be released more quickly, improving the utilization rate of individual equipment and reducing the risk of the entire production line being shut down due to the failure of one piece of equipment.

[0034] In some embodiments, the flipping roller assembly 210 includes a flipping roller 500; The production line doffing machine 100 includes at least one doffing roller assembly 110, which includes a doffing roller 500; in the doffing docking state, the doffing roller 500 is axially docked with the flipping roller 500 to convey the yarn cake. The silk cake transfer vehicle 300 includes at least one transfer roller assembly 310, which includes a transfer roller 500; in the transfer docking state, the transfer roller 500 is axially docked with the flip roller 500 to transfer the silk cake.

[0035] In these embodiments, to achieve lossless, smooth and automatic transfer of the yarn cake between units, the key transmission components of the yarn doffing system all adopt a roller 500 structure, and the yarn cake transfer is completed through precise axial docking.

[0036] Specifically, the tilting roller assembly 210 includes at least one tilting roller 500. The tilting roller 500 is arranged horizontally. One end of the tilting roller 500 is mounted on the tilting bracket via a bearing seat, and the other end is suspended in the air and is driven by a servo motor to achieve controllable rotation and tilting.

[0037] Accordingly, the doffing carriage 100 of the production line is equipped with at least one doffing roller assembly 110, each doffing roller assembly 110 including one doffing roller 500. The doffing roller 500 is also arranged horizontally, and its axis is collinear or parallel to the axis of the turning roller 500 with a very small gap. When the system enters the doffing docking state, the doffing carriage 100 of the production line moves to a preset position and achieves precise positioning through photoelectric sensors or mechanical limiting devices, so that the doffing roller 500 and the turning roller 500 are seamlessly docked in the axial direction (i.e., the end faces of the two rollers 500 are close to or slightly in contact, forming a continuous support surface). At this time, the yarn cake can be smoothly rolled from the doffing roller 500 onto the turning roller 500 under a slight pushing force, completing the receiving.

[0038] Similarly, the silk cake receiving cart 300 is equipped with at least one receiving roller assembly 310, each receiving roller assembly 310 including a receiving roller 500. In the receiving and docking state, the silk cake receiving cart 300 enters the receiving station of the silk cake turning table 200. After positioning, the receiving roller 500 and the turning roller 500 are axially docked to form a continuous roller support. The turned silk cake then rolls from the turning roller 500 onto the receiving roller 500 and is transported away by the silk cake receiving cart 300.

[0039] By adopting a axially connected roller design, the clamping of the yarn cake end face or bobbin during the traditional robotic arm gripping process is avoided, fundamentally eliminating quality problems such as yarn cake deformation, edge collapse, or loosening of yarn layers caused by uneven clamping force. At the same time, the roller 500 connection method supports parallel transmission of multiple spindles. For example, a doffing car is equipped with 3 sets of doffing roller assemblies 110, corresponding to the simultaneous feeding of 3 yarn cakes, which significantly improves the efficiency of a single operation and meets the cycle time requirements of high-speed spinning production lines.

[0040] In some embodiments, the silk cake turning table 200 further includes a turning drive assembly, which includes a turning support member and a turning mounting member. The turning roller 500 is disposed on the turning mounting member, and the turning mounting member is rotatably disposed on the turning support member.

[0041] In these embodiments, to achieve stable support and reliable flipping action of the flipping roller assembly 210, the yarn cake flipping table 200 also includes a flipping drive assembly. This flipping drive assembly mainly consists of a flipping support component and a flipping mounting component.

[0042] The flipping support is fixedly installed on the frame of the silk cake flipping table 200, serving as the supporting foundation for the entire flipping mechanism. Its structure can be a rigid frame, base, or column assembly, possessing sufficient strength and rigidity to withstand the dynamic loads during the flipping process.

[0043] The flip-mount component is rotatably mounted on the flip-support component. Specifically, the flip-mount component is connected to the flip-support component via a pair of high-precision slewing bearings or pivots, enabling the flip-mount component to rotate smoothly about a horizontal or inclined flip axis.

[0044] The tumbling roller shaft 500 is mounted on the tumbling mounting component. In one configuration, both ends of the tumbling roller shaft 500 are fixed between the two side supports of the tumbling mounting component via bearing seats, ensuring that it maintains a horizontal posture and rotational freedom during the tumbling process.

[0045] Furthermore, the flipping drive assembly may also include a drive unit, such as a servo motor, a reducer, and a transmission chain / belt / gear mechanism. This drive unit is connected to the flipping mounting component and is used to control its rotation angle and speed. The control system can automatically adjust the flipping parameters according to the type of yarn package to ensure smooth operation and accurate positioning.

[0046] With the above structure, when the yarn cake is conveyed to the flipping roller 500, the flipping drive assembly is activated, driving the flipping mounting piece and the flipping roller 500 on it to rotate as a whole, realizing the overall flipping of the yarn cake. After the flipping is completed, the flipping mounting piece can be precisely positioned to the docking angle, ensuring that the flipping roller 500 and the docking roller 500 are accurately aligned, completing the subsequent unloading.

[0047] In some embodiments, at least one of the doffing roller assembly 110, the flipping roller assembly 210, and the connecting roller assembly 310 includes a pusher 400 for pushing the yarn cake passing through the roller 500 axially to disengage the yarn cake from the roller 500.

[0048] In these embodiments, to ensure that the yarn cake reliably disengages from the roller 500 between each station and to avoid retention problems caused by insufficient friction or positional deviation, at least one of the yarn doffing roller assembly 110, the flipping roller assembly 210 and / or the connecting roller assembly 310 further includes an ejector 400.

[0049] The pusher 400 is used to push the yarn cake, which is threaded on the corresponding roller 500, to move axially, thereby detaching it from the roller 500 and completing the unloading or transfer action.

[0050] Specifically, in one embodiment, the flipping roller assembly 210 is equipped with an ejector 400. The ejector 400 may be a pneumatic actuator, an electric actuator, or a linearly driven push plate, mounted on one side of the flipping mounting assembly (e.g., near one end of the yarn cake feeder 300). The pusher head of the ejector 400 is located on the axial extension of the flipping roller 500, and its direction of movement is parallel to the axis of the flipping roller 500.

[0051] When the yarn cake has finished flipping and is in the docking position, the yarn cake docking carriage 300 is in place and axially aligned with the flipping roller shaft 500. At this time, the control system activates the pusher 400, the pusher head extends forward and gently abuts against the end face of the yarn cake (or the end of the bobbin), pushing it axially onto the docking roller shaft 500 along the flipping roller shaft 500. The push stroke can be preset according to the width of the yarn cake to ensure that the yarn cake completely detaches from the flipping roller shaft 500 and lands stably on the docking roller shaft 500.

[0052] In some embodiments, the roller 500 has a hollow channel, and the outer wall of the roller 500 has a groove 510 that passes through the hollow channel. Both the groove 510 and the hollow channel extend along the axial direction of the roller 500. The ejector 400 includes a contact portion 410 and a pushing portion 420. The contact portion 410 is located outside the roller 500, and the pushing portion 420 is at least accommodated within the hollow channel. The contact portion 410 has a connecting end that is movably disposed through the groove 510 and the hollow channel, and the connecting end is connected to the pushing portion 420. The pushing portion 420 is used to drive the contact portion 410 to move axially along the roller 500.

[0053] In these embodiments, to improve structural compactness, avoid external interference, and achieve precise axial pushing, the roller 500 adopts a hollow structure design and is integrated with the pusher 400.

[0054] Specifically, the roller 500 (taking the tilting roller 500 as an example) has a hollow channel extending along its axial direction inside. At the same time, a groove 510 is provided on the outer wall of the roller 500. The groove 510 extends through the roller 500 along its axial direction and communicates with the hollow channel, that is, the groove 510 extends from the outer surface of the roller 500 to the interior of the hollow channel.

[0055] Accordingly, the ejector 400 includes a contact portion 410 and a pushing portion 420: The contact portion 410 is located on the outside of the roller 500 and is used for direct contact with the end face of the yarn cake or the bobbin. The push portion 420 is at least partially housed within the hollow channel and serves as a drive actuator. The contact portion 410 has a connecting end that extends from the outside of the roller 500 through the groove 510 into the hollow channel and is fixedly connected to the push portion 420.

[0056] When the pushing part 420 moves axially along the hollow channel under the action of the driving source (such as a cylinder, electric push rod or linear motor), it drives the contact part 410 to slide synchronously along the slide groove 510 through the connecting end, thereby realizing the axial linear motion of the contact part 410 on the outer surface of the roller 500 and completing the pushing operation of the silk cake.

[0057] In one specific embodiment, the pushing part 420 is a linear slider installed in the hollow channel. One end of the slider is connected to the piston rod of a miniature cylinder, and the other end is linked to the connecting end of multiple contact parts 410 to achieve multi-point synchronous pushing, which is suitable for uniform unloading of wide-width silk cakes.

[0058] In addition, since the pushing part 420 is fully or mostly hidden inside the roller 500, the entire outer surface of the roller 500 has no protruding structures except for the groove 510. This not only reduces the risk of interference with the yarn cake or other equipment, but also facilitates cleaning and maintenance, making it particularly suitable for textile workshop environments with high cleanliness requirements.

[0059] In some embodiments, the pushing part 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 the hollow channel. The axial direction of the ejector screw is parallel to the axial direction of the roller 500. The connecting end is connected to the ejector slide. The ejector power unit is disposed on the roller 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.

[0060] In these embodiments, the pusher 420 adopts a screw slide threaded transmission structure to achieve smooth and controllable axial movement of the contact part 410.

[0061] Both the lead screw and the ejector slide are housed within the hollow channel of the roller 500. The lead screw extends axially along the roller 500, with its axis parallel and coplanar to the axis of the roller 500. The ejector slide is sleeved on the lead screw and is threadedly connected to the lead screw via an internal thread.

[0062] After the connecting end of the contact part 410 passes through the groove 510 on the outer wall of the roller 500, it is fixedly connected to the ejection slide (e.g., by screws or clips). When the ejection screw rotates, the ejection slide moves along the axial direction of the ejection screw under the side effect of the thread, thereby driving the contact part 410 to slide synchronously along the axial direction of the roller 500, so as to achieve precise ejection of the yarn cake.

[0063] Crucially, the ejector power unit is not mounted on the roller 500 body, but rather on the roller itself. This roller could be, for example, the production line doffing cart 100 or the yarn cake receiving cart 300. When this cart moves to the docking position with the yarn cake turning table 200, the ejector power unit automatically connects and drives the end of the ejector screw via a docking transmission mechanism (such as a spline sleeve, magnetic coupling, or quick-change joint).

[0064] The ejector power unit can be a servo motor, a stepper motor, or a micro motor with a reducer, and its output shaft is connected to the ejector screw. The control system presets the ejection stroke and speed according to the yarn cake specifications, and drives the ejector power unit to rotate forward or backward, thereby precisely controlling the extension and retraction of the contact part 410.

[0065] In some embodiments, the lead screw and the inner wall of the hollow channel are rotatably connected.

[0066] In these embodiments, to ensure that the lead screw rotates stably within the hollow channel and is reliably axially positioned, the lead screw is supported on the inner wall of the hollow channel by a rotating connection structure.

[0067] Specifically, radial support bearings are provided at both ends or in the middle of the lead screw. The outer ring or outer surface of the bearing is fixedly connected or interference-fitted with the inner wall of the hollow channel, while the inner ring is fitted with the journal of the lead screw, thereby forming a rotating pair that can rotate but cannot move axially (or restricts axial displacement).

[0068] In one configuration, the inner walls at both ends of the hollow channel of the roller 500 are provided with bearing mounting steps or snap ring grooves for mounting a pair of back-to-back angular contact ball bearings. This bearing assembly not only supports the radial load of the lead screw but also withstands the axial thrust generated when the lead screw rotates, ensuring smooth and jam-free threaded transmission.

[0069] Furthermore, for ease of assembly, one end of the hollow channel can be designed as an open end, through which the lead screw and bearing assembly are inserted, and then axially limited by an end cap or retaining ring. The other end connects to the ejector power unit, forming a complete drive chain.

[0070] Through the aforementioned rotating connection structure, the lead screw only performs pure rotational motion during operation, without swaying or rubbing against the inner wall of the hollow channel due to its own weight or vibration, which significantly improves transmission accuracy, service life and operational reliability.

[0071] In some embodiments, the axial direction of the connecting roller 500 is perpendicular to the longitudinal direction of the yarn cake connecting cart 300. The axial direction of the doffing roller 500 is perpendicular to the longitudinal direction of the production line doffing cart 100.

[0072] In these embodiments, to optimize the stability, space utilization, and docking convenience of the yarn cake during the transfer process, the axial direction of the connecting roller 500 is perpendicular to the longitudinal direction (i.e., the direction of travel) of the yarn cake connecting cart 300. Correspondingly, the axial direction of the doffing roller 500 is also perpendicular to the longitudinal direction of the doffing cart 100 of the production line.

[0073] Specifically, the yarn cake receiving cart 300 travels longitudinally along the production line direction (e.g., from the turnover table to the balancing room), with its length direction defined as longitudinal. On this cart, one or more receiving roller shaft assemblies 310 are arranged side by side laterally along the cart body, with the axis of each receiving roller shaft 500 perpendicular to the longitudinal direction of the cart body. Therefore, when the yarn cake is threaded onto the receiving roller shaft 500, its bobbin axis is also transverse, and the yarn cake disc surface is parallel to the direction of travel of the cart body.

[0074] Similarly, when the doffing carriage 100 receives the yarn cake from the spinning and winding machine, the doffing rollers 500 on it are also arranged laterally along the carriage body, with their axis perpendicular to the longitudinal direction of the carriage body. This arrangement allows multiple yarn cakes to be stored side by side in the width direction of the carriage body, effectively utilizing the lateral space of the carriage body, while preventing the yarn cakes from axially slipping due to inertia when the vehicle starts, stops, or turns.

[0075] The flipping roller 500 is also arranged laterally (axial direction is perpendicular to the production line direction). When the production line doffing car 100 or the yarn cake connecting car 300 enters the docking position, it only needs to be fed in a longitudinal straight line to achieve coaxial alignment between the rollers 500.

[0076] In some embodiments, at least one of the production line doffing car 100, the yarn cake turning table 200, and the yarn cake receiving car 300 includes a docking adjustment assembly, which is connected to a corresponding roller shaft 500 assembly and is used to drive the corresponding roller shaft 500 assembly to move along the axial direction of its roller shaft 500.

[0077] In these embodiments, to compensate for manufacturing tolerances, thermal deformation, or vehicle positioning deviations, and to ensure high-precision axial alignment of each roller 500 assembly during the docking process, at least one of the production line doffing car 100, the yarn cake turning table 200, and / or the yarn cake connecting car 300 further includes a docking adjustment assembly.

[0078] The docking adjustment component is connected to the corresponding roller 500 component (such as the doffing roller 110, the flipping roller 210, or the connecting roller 310) to drive the roller 500 component to move along the axial direction of the roller 500, thereby fine-tuning its position in the docking direction.

[0079] Specifically, in one embodiment, the yarn cake turning table 200 is equipped with a docking adjustment assembly. This assembly includes a linear drive unit (such as an electric push rod, servo cylinder, or precision lead screw module) and a guide mechanism (such as a linear guide rail or a slider of the slide 510). The turning roller assembly 210 is integrally mounted on the slide of the guide mechanism, and the linear drive unit is connected to the slide. When the yarn doffing car 100 or the yarn cake receiving car 300 enters the docking area, the control system controls the docking adjustment assembly to drive the turning roller assembly 210 to move slightly along the axial direction (i.e., laterally) of its roller 500 according to the deviation signal fed back by the position sensor (such as a laser rangefinder or proximity switch), so that the turning roller 500 and the yarn doffing roller 500 or the receiving roller 500 achieve precise docking with end faces aligned and gaps uniform.

[0080] Similarly, in other embodiments: The production line doffing car 100 can be equipped with a docking adjustment component for fine-tuning the position of the doffing roller assembly 110 when it is close to the turnover table; The 300 silk cake transfer vehicle can also be equipped with a docking adjustment component to dynamically compensate for docking deviations at the transfer station.

[0081] The docking adjustment components can be driven manually, pneumatically, or electrically.

[0082] In some embodiments, the production line doffing cart 100 further includes a doffing support assembly 120, and the doffing roller shaft assembly 110 is slidably disposed on the doffing support assembly 120 along the axial direction of the doffing roller shaft 500. The silk cake transfer vehicle also includes a transfer support assembly 320, and a transfer roller assembly 310 is slidably disposed on the transfer support assembly 320 along the axial direction of the transfer roller 500.

[0083] In these embodiments, to improve the motion adaptability and structural stability of the roller 500 assembly during the transfer and docking process, the production line doffing car 100 and the yarn cake transfer car 300 are respectively provided with dedicated support structures, so that the roller 500 assembly can slide axially on them.

[0084] Specifically, the doffing carriage 100 of the production line also includes a doffing support assembly 120. The doffing roller assembly 110 is slidably mounted on the doffing support assembly 120 along the axial direction of the doffing roller 500. The doffing support assembly 120 may include a pair of parallel linear guide rails or grooves 510 structures. The bearing seat or bracket of the doffing roller assembly 110 is fixedly connected to the guide rail slider, thereby allowing limited axial (i.e., transverse) sliding of the roller 500 while maintaining its horizontal orientation.

[0085] Similarly, the yarn cake receiving cart 300 also includes a receiving support assembly 320. The receiving roller assembly 310 is slidably mounted on the receiving support assembly 320 along the axial direction of the receiving roller 500. The structure of the receiving support assembly 320 may be the same as or similar to that of the yarn doffing support assembly 120, for example, by using a linear guide, dovetail groove, or roller guide mechanism.

[0086] 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.

[0087] 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.

[0088] 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 fiber-feeding system, characterized in that, The doffing system includes a doffing car, a roll turning table, and a roll receiving car. The roll turning table includes a movable turning roller assembly, which allows the turning roller assembly to switch between a doffing docking state and a receiving docking state. When the doffing docking state is reached, the doffing car of the production line can move to dock with the flip roller assembly to transfer the yarn cake to the flip roller assembly. In the docking state, the yarn cake docking car can move to dock with the flipping roller assembly to receive from the flipping roller assembly.

2. The wire-feeding system according to claim 1, characterized in that, The flipping roller assembly includes a flipping roller; The production line doffing car includes at least one doffing roller assembly, which includes a doffing roller; in the doffing docking state, the doffing roller is axially docked with the flipping roller to convey the yarn cake. The silk cake transfer vehicle includes at least one transfer roller assembly, which includes a transfer roller; in the transfer docking state, the transfer roller is axially docked with the flipping roller to transfer the silk cake.

3. The wire-feeding system according to claim 2, characterized in that, The silk cake turning table also includes a turning drive assembly, which includes a turning support and a turning mounting component. The turning roller is disposed on the turning mounting component, and the turning mounting component is rotatably disposed on the turning support.

4. The wire-feeding system according to claim 2, characterized in that, At least one of the doffing roller assembly, the flipping roller assembly, and the connecting roller assembly includes a pusher for axially moving the yarn cake passing through the roller to disengage the yarn cake from the roller.

5. The wire-feeding system according to claim 4, characterized in that, The roller has a hollow channel, and the outer wall of the roller has a groove that passes through the hollow channel. Both the groove and the hollow channel extend along the axial direction of the roller. The ejector includes a contact portion and a pushing portion. The contact portion is located on the outside of the roller shaft, 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 roller shaft.

6. The wire-feeding system according to claim 5, characterized in that, 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 roller shaft. The connecting end is connected to the ejector slide. The ejector power unit is disposed on the roller shaft 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 to move axially.

7. The wire-feeding system according to claim 6, characterized in that, The lead screw is rotatably connected to the inner wall of the hollow channel.

8. The wire-feeding system according to claim 2, characterized in that, The axial direction of the connecting roller shaft is perpendicular to the longitudinal direction of the silk cake connecting vehicle; The axial direction of the doffing roller shaft is perpendicular to the longitudinal direction of the doffing car on the production line.

9. The wire-feeding system according to claim 2, characterized in that, At least one of the production line doffing car, the yarn cake turning table, and the yarn cake connecting car includes a docking adjustment component, which is connected to the corresponding roller assembly and is used to drive the corresponding roller assembly to move along the axial direction of its roller.

10. The wire-feeding system according to claim 2 or 9, characterized in that, The production line doffing car also includes a doffing support assembly, and the doffing roller shaft assembly is slidably disposed on the doffing support assembly along the axial direction of the doffing roller shaft. The silk cake transfer vehicle also includes a transfer support assembly, and the transfer roller assembly is slidably disposed on the transfer support assembly along the axial direction of the transfer roller.

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