Automatic yarn winding apparatus and method

Abstract

The present application relates to the technical field of yarn winding, and particularly relates to a yarn automatic winding device and method. The device comprises a feeding unit and a winding unit. The feeding unit is used for conveying an I-shaped yarn disc of yarn to be wound to a winding station. The winding unit comprises a rotating device, a clamping device and a movable yarn guide device. The rotating device comprises a rotatable end surface. The clamping device comprises a rotating clamping surface and an axially movable shaft body. The shaft body is rotationally connected with the rotating clamping surface. The winding station is between the rotatable end surface and the clamping device. The yarn guide device is provided with yarn. The yarn guide device is used for guiding the yarn to one side of the rotating clamping surface. After the I-shaped yarn disc reaches the winding station, the shaft body is moved to drive the rotating clamping surface to move towards the rotatable end surface, so that the I-shaped yarn disc and the yarn are clamped between the rotatable end surface and the rotating clamping surface. The rotatable end surface is rotated to drive the I-shaped yarn disc and the rotating clamping surface to rotate. Meanwhile, the yarn guide device is reciprocally moved along the axial direction of the I-shaped yarn disc, so that the yarn is wound on the I-shaped yarn disc.

Description

Technical Field

[0001] This invention relates to the field of yarn winding technology, and in particular to an automatic yarn winding device and method. Background Technology

[0002] Yarn-reinforced preforms are one of the raw materials for preparing composite materials.

[0003] In related technologies, yarn-reinforced preforms are mainly prepared using three-dimensional weaving equipment. However, preparing yarn-reinforced preforms using three-dimensional weaving equipment requires a large number of I-beams containing yarn. Currently, there is a lack of equipment and methods for automatically winding yarn onto these I-beams. Summary of the Invention

[0004] This invention provides an automatic yarn winding device and method that can automatically wind yarn onto an I-beam spool.

[0005] This invention provides an automatic yarn winding device, including a feeding unit and a winding unit;

[0006] The feeding unit is used to transport the I-beam spool of yarn to be wound to the winding station.

[0007] The winding unit includes a rotating device, a clamping device, and a movable yarn guiding device. The rotating device includes a rotatable end face, and the clamping device includes a rotating clamping surface and an axially movable shaft. The shaft is rotatably connected to the rotating clamping surface. The winding station is located between the rotatable end face and the clamping device. The yarn guiding device is threaded with yarn and is used to guide the yarn to one side of the rotating clamping surface. After the I-beam yarn spool reaches the winding station, the shaft is moved to drive the rotating clamping surface to move towards the rotatable end face, so that the I-beam yarn spool and the yarn are clamped between the rotatable end face and the rotating clamping surface. The rotatable end face is rotated to drive the I-beam yarn spool and the rotating clamping surface to rotate. At the same time, the yarn guiding device is moved back and forth along the axial direction of the I-beam yarn spool to make the yarn wound on the I-beam yarn spool.

[0008] In one possible design, the rotating device further includes a shaft-shaped telescopic component, a concentric limiting component, and a power component;

[0009] The power assembly includes a motor and a first cylinder. The rotating shaft of the motor is hollow and connected to the rotatable end face. The rotatable end face is provided with a first through hole. The telescopic component passes through the rotating shaft, with one end connected to the first cylinder and the other end connected to the concentric limiting member. The telescopic component is extended or retracted by the first cylinder to control the concentric limiting member to be hidden in or out of the first through hole.

[0010] In one possible design, the rotatable end face and / or the rotating clamping surface are provided with a plurality of bosses, which are used to lock the side ridges on the I-beam yarn disc and catch the yarn when the I-beam yarn disc is in close contact with the rotatable end face, so as to prevent the I-beam yarn disc from turning over at high speed.

[0011] In one possible design, the clamping device further includes a first locking ring, a first spring, a thrust member, and a second locking ring arranged sequentially along the shaft, wherein the first locking ring is close to the rotating clamping surface;

[0012] The first locking ring and the second locking ring are fixedly sleeved on the shaft, and the thrust component and the first spring are slidably sleeved on the shaft;

[0013] When it is necessary to clamp the I-beam yarn disc on the winding station, the thrust component moves toward the first locking ring to sequentially push the first spring and the first locking ring to move. The first locking ring drives the shaft to move so that the rotating clamping surface contacts the I-beam yarn disc. The thrust component continues to move to compress the first spring and apply clamping force to the rotating clamping surface.

[0014] When it is not necessary to clamp the I-beam yarn spool on the winding station, the thrust component moves toward the second locking ring to sequentially push the second locking ring, the shaft and the rotating clamping surface to release the I-beam yarn spool.

[0015] In one possible design, the feeding unit includes a yarn tray groove and a yarn tray support. The yarn tray groove is used to store multiple I-beam yarn trays to be wound. The yarn tray groove includes a discharge port. The yarn tray support includes a feeding slide rail and a feeding component that can slide on the feeding slide rail. The feeding component is provided with a groove for receiving the I-beam yarn trays output from the discharge port. The feeding slide rail is used to transport the feeding component holding the I-beam yarn trays to the winding station of the winding unit for fixing. The feeding slide rail is also used to retract the feeding component to receive new I-beam yarn trays after the winding unit has fixed the I-beam yarn trays.

[0016] In one possible design, the yarn tray groove is square columnar and slopes downward. The discharge port is located at the downward-facing end of the yarn tray groove. The yarn tray support also includes a blocking sliding member connected to the feeding slide rail. The groove of the feeding member is arc-shaped. The bottom of the blocking sliding member is connected to the bottom shaft pin of the feeding member. The bottom of the blocking sliding member is connected to the side of the feeding member through a second spring. The upper part of the blocking sliding member is a blocking sliding surface. The second spring is used to provide elastic force to make the groove of the feeding member face upward and fit tightly against the blocking sliding surface.

[0017] In one possible design, the yarn guiding device is located above the winding station and includes a yarn guide eye, a yarn discharge rod, and a timing belt component;

[0018] The yarn guide eye is threaded with yarn and is located at one end of the yarn feeding rod. The synchronous belt component is used to control the axial movement of the yarn feeding rod and to move the yarn guide eye to the feeding position. When the yarn guide eye is located at the feeding position, the yarn that hangs down naturally from the yarn guide eye is located on one side of the rotating clamping surface.

[0019] In one possible design, the winding unit further includes a cutting device located below the winding station, the cutting device including a cutting piece and a second cylinder, the second cylinder being used to control the movement of the cutting piece;

[0020] After the yarn is wound on the spool, the second cylinder controls the cutting component to cut the yarn.

[0021] In one possible design, a feeding device located below the winding station is also included. The feeding device includes a yarn spool gripper, a telescopic cylinder, and a servo motor. The telescopic cylinder is used to control the yarn spool gripper to move up and down, and the servo motor is used to control the yarn spool gripper to rotate left and right.

[0022] After the I-beam yarn spool is wound, the telescopic cylinder controls the yarn spool clamp to clamp the I-beam yarn spool at the winding station, moves the rotating clamping surface to release the I-beam yarn spool, the telescopic cylinder controls the yarn spool clamp to move downwards, the feeding unit moves a new I-beam yarn spool to the winding station, moves the rotating clamping surface to clamp the new I-beam yarn spool, the servo motor controls the yarn spool clamp to tilt towards the cutting piece to tighten the yarn, the second cylinder controls the cutting piece to cut the yarn, and the telescopic cylinder and the servo motor control the yarn spool clamp to move to a preset position to release the I-beam yarn spool.

[0023] This invention also provides an automatic yarn winding method, based on any of the automatic yarn winding devices described above, the method comprising:

[0024] The feeding unit is used to transport the I-beam spool of yarn to be wound to the winding station;

[0025] The yarn is guided to one side of the rotating clamping surface using the yarn guiding device.

[0026] After the I-beam yarn spool reaches the winding station, the shaft is moved to drive the rotating clamping surface to move to the rotatable end face, so that the I-beam yarn spool and the yarn are clamped between the rotatable end face and the rotating clamping surface.

[0027] Rotating the rotatable end face causes the I-beam yarn disc and the rotating clamping surface to rotate, while the yarn guiding device reciprocates along the axial direction of the I-beam yarn disc to make the yarn wound on the I-beam yarn disc.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] In this embodiment, before winding, the yarn guiding device guides the yarn to one side of the rotating clamping surface. The feeding unit transports the I-beam yarn spool to a pre-reserved winding station, which is located between the rotatable end face and the rotating clamping surface. When the I-beam yarn spool is transported to the winding station, the rotating clamping surface moves towards the I-beam yarn spool at the winding station under the drive of the shaft. During this process, the rotating clamping surface pushes the yarn continuously closer to the I-beam yarn spool until the rotating clamping surface contacts the side of the I-beam yarn spool, clamping the yarn between the rotating clamping surface and the I-beam yarn spool. The rotating clamping surface continues to move, causing the other side of the I-beam yarn spool to abut against the rotatable end face, thus firmly fixing the I-beam yarn spool and the yarn between the rotatable end face and the rotating clamping surface. At this point, the yarn tray is fixed at the winding station, and one end of the yarn is also fixed. The rotatable end face is driven to rotate, which in turn causes the yarn tray and the rotating clamping surface to rotate. One end of the yarn is fixed between the yarn tray and the rotatable end face, thus allowing the yarn to wind onto the yarn tray. While the yarn tray rotates, the position of the yarn guiding device is moved to ensure the yarn is evenly wound onto the yarn tray. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an automatic yarn winding device provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a rotating device and a yarn guiding device provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of a clamping device and a cutting device provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of a feeding unit provided in an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of a yarn tray holder provided in an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of a feeding device provided in an embodiment of the present invention.

[0037] In the picture:

[0038] 1-Feeding unit;

[0039] 11- Yarn tray groove;

[0040] 12- Yarn tray support;

[0041] 121 - Feeding slide rail;

[0042] 122-Loading component;

[0043] 123 - Blocking the sliding component;

[0044] 124 - Second spring;

[0045] 2-Wound unit;

[0046] 21-Rotating device;

[0047] 211 - Rotatable end face;

[0048] 212 - Scalable components;

[0049] 213 - Concentric limiting component;

[0050] 214 - Power Components;

[0051] 22-Clamping device;

[0052] 221-Shaft;

[0053] 222 - Rotational clamping surface;

[0054] 223 - First locking ring;

[0055] 224 - First Spring;

[0056] 225 - Thrust component;

[0057] 226 - Second locking ring;

[0058] 23- Yarn guiding device;

[0059] 231- Yarn guide eye;

[0060] 232 - Yarn guide bar;

[0061] 233 - Synchronous belt components;

[0062] 24-Cutting device;

[0063] 241-Cut piece;

[0064] 242 - Second cylinder;

[0065] 3- Feeding device;

[0066] 31- Yarn disc clamp;

[0067] 32-Telescopic cylinder;

[0068] 33-Servo motor. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0070] In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or stated, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0071] In this specification, it should be understood that the directional terms such as "upper" and "lower" used in the description of the embodiments of the present invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of the present invention. Furthermore, in the context, it should also be understood that when it is mentioned that one element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0072] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides an automatic yarn winding device, including a feeding unit 1 and a winding unit 2;

[0073] Feeding unit 1 is used to transport the I-beam spool of yarn to be wound to the winding station;

[0074] The winding unit 2 includes a rotating device 21, a clamping device 22, and a movable yarn guiding device 23. The rotating device 21 includes a rotatable end face 211, and the clamping device 22 includes a rotating clamping surface 222 and a shaft 221 that can move along the axial direction. The shaft 221 is rotatably connected to the rotating clamping surface 222. The winding station is between the rotatable end face 211 and the clamping device 22. The yarn guiding device 23 is threaded with yarn and is used to guide the yarn to one side of the rotating clamping surface 222. After the I-beam yarn spool reaches the winding station, the movable shaft 221 drives the rotating clamping surface 222 to move toward the rotatable end face 211 so that the I-beam yarn spool and the yarn are clamped between the rotatable end face 211 and the rotating clamping surface 222. The rotating rotatable end face 211 drives the I-beam yarn spool and the rotating clamping surface 222 to rotate. At the same time, the yarn guiding device 23 moves back and forth along the axial direction of the I-beam yarn spool so that the yarn is wound on the I-beam yarn spool.

[0075] In this embodiment, before winding the yarn, the yarn guiding device 23 guides the yarn to one side of the rotating clamping surface 222. The feeding unit 1 transports the I-beam yarn spool to the reserved winding station, which is located between the rotatable end face 211 and the rotating clamping surface 222. When the I-beam yarn spool is transported to the winding station, the rotating clamping surface 222 moves towards the I-beam yarn spool at the winding station under the drive of the shaft 221. During this process, the rotating clamping surface 222 pushes the yarn closer and closer to the I-beam yarn spool until the rotating clamping surface 222 contacts the side of the I-beam yarn spool, clamping the yarn between the rotating clamping surface 222 and the I-beam yarn spool. The rotating clamping surface 222 continues to move, causing the other side of the I-beam yarn spool to abut against the rotatable end face 211, thus firmly fixing the I-beam yarn spool and the yarn between the rotatable end face 211 and the rotating clamping surface 222. At this time, the I-beam yarn spool is fixed at the winding station, and one end of the yarn is also fixed. The rotatable end face 211 is driven to rotate, which in turn drives the I-beam yarn spool and the rotating clamping surface 222 to rotate. One end of the yarn is fixed between the I-beam yarn spool and the rotatable end face 211, so the yarn can be wound on the I-beam yarn spool. While the I-beam yarn spool is rotating, the position of the yarn guiding device 23 is moved to make the yarn evenly wound on the I-beam yarn spool.

[0076] To achieve automatic yarn winding, a key issue to address is automatic yarn start-up, which involves securing one end of the yarn to ensure smooth winding onto the spool at the start. Existing technologies often employ adhesive tape for automatic start-up, using tape to secure the yarn end. However, tape is unreliable; it easily adheres to non-target locations such as delivery components, leading to start-up failure, or it may become contaminated with dust, resulting in weak adhesion. Furthermore, adhesive residue on the yarn can negatively impact its quality. In this application, the yarn guide device 23 and winding unit 2 work together to achieve yarn start-up, avoiding the problems associated with tape-based start-up. Moreover, the elimination of delivery and tape supply components simplifies the structure.

[0077] like Figure 2 As shown, in some embodiments of the present invention, the rotating device 21 further includes a shaft-shaped telescopic component 212, a concentric limiting component 213, and a power component 214.

[0078] The power assembly 214 includes a motor and a first cylinder. The rotating shaft of the motor is hollow and connected to a rotatable end face 211. The rotatable end face 211 is provided with a first through hole. The telescopic assembly 212 passes through the rotating shaft, with one end connected to the first cylinder and the other end connected to a concentric limiting member 213. The telescopic assembly 212 is extended or retracted by the first cylinder to control the concentric limiting member 213 to be hidden in or out of the first through hole.

[0079] In this embodiment, when the feeding unit 1 transports the I-beam yarn spool to the winding station, to prevent the concentric limiting member 213, which protrudes from the rotatable end face 211, from blocking the movement path of the I-beam yarn spool, the concentric limiting member 213 is connected to the telescopic component 212. When transporting the I-beam yarn spool, the telescopic component 212 retracts the concentric limiting member 213 into the rotatable end face 211. When the I-beam yarn spool is transported to the winding station, the telescopic component 212 extends the concentric limiting member 213, allowing it to be inserted into the center hole of the I-beam yarn spool from the side, thereby ensuring that the I-beam yarn spool does not become eccentric when rotating around the axis. The tail of the telescopic component 212 is connected to the first cylinder by a floating joint to prevent the cylinder from vibrating and loosening due to insufficient coaxiality accuracy of the machining when the telescopic rod assembly rotates.

[0080] In some embodiments of the present invention, the rotatable end face 211 and / or the rotatable clamping surface 222 are provided with a plurality of bosses. The bosses are used to hold the side ridges on the I-beam yarn disc and hold the yarn when the I-beam yarn disc is in close contact with the rotatable end face 211, so as to prevent the I-beam yarn disc from turning over when the rotation speed is high.

[0081] In this embodiment, multiple bosses can be evenly provided on the rotatable end face 211 and / or the rotatable clamping surface 222, and the height of the bosses is preferably 1mm. The bosses are used to hold the side ridges on the I-beam yarn disc and trap the yarn when the I-beam yarn disc is in close contact with the rotatable end face 211, so as to prevent the I-beam yarn disc from turning over at high speed.

[0082] Understandably, in order to increase the friction with the I-beam yarn disc, the rotatable end face 211 and / or the rotatable clamping face 222 can be made of a high-hardness elastic material.

[0083] like Figure 3 As shown, in some embodiments of the present invention, the clamping device 22 further includes a first locking ring 223, a first spring 224, a thrust member 225 and a second locking ring 226 arranged sequentially along the shaft 221, wherein the first locking ring 223 is close to the rotating clamping surface 222.

[0084] The first locking ring 223 and the second locking ring 226 are fixedly sleeved on the shaft 221, and the thrust component 225 and the first spring 224 are slidably sleeved on the shaft 221;

[0085] When it is necessary to clamp the I-beam yarn spool at the winding station, the thrust component 225 moves toward the first locking ring 223 to sequentially push the first spring 224 and the first locking ring 223 to move. The first locking ring 223 drives the shaft 221 to move so that the rotating clamping surface 222 contacts the I-beam yarn spool. The thrust component 225 continues to move to compress the first spring 224 and apply clamping force to the rotating clamping surface 222.

[0086] When the yarn spool on the winding station does not need to be clamped, the thrust component 225 moves toward the second locking ring 226 to sequentially push the second locking ring 226, the shaft 221 and the rotating clamping surface 222 to release the yarn spool.

[0087] In this embodiment, when it is necessary to clamp the I-beam yarn spool at the winding station, the thrust member 225 moves toward the first locking ring 223 to sequentially push the first spring 224 and the first locking ring 223 to move. The first locking ring 223 drives the shaft 221 to move so that the rotating clamping surface 222 contacts the I-beam yarn spool. The thrust member 225 continues to move to compress the first spring 224, applying a clamping force to the rotating clamping surface 222, which comes from the spring force. This arrangement allows for flexible adjustment of the force applied by the rotating clamping surface 222 to the I-beam yarn spool. Specifically, the force applied by the rotating clamping surface 222 to the I-beam yarn spool can be adjusted by adjusting the elastic coefficient of the first spring 224, and also by adjusting the distance between the first locking ring 223 and the thrust member 225. For the thrust component 225, it is only necessary to connect it to a cylinder with a thrust greater than the limit force of the first spring 224 to push the thrust component 225 to the preset position. When it is not necessary to clamp the I-beam yarn spool on the winding station, the thrust component 225 moves toward the second locking ring 226 to sequentially push the second locking ring 226, the shaft 221 and the rotating clamping surface 222 to release the I-beam yarn spool.

[0088] like Figure 4 and Figure 5As shown, in some embodiments of the present invention, the feeding unit 1 includes a yarn tray groove 11 and a yarn tray support 12. The yarn tray groove 11 is used to store multiple I-shaped yarn trays to be wound. The yarn tray groove 11 includes a discharge port. The yarn tray support 12 includes a feeding slide rail 121 and a feeding component 122 that can slide on the feeding slide rail 121. The feeding component 122 is provided with a groove for receiving the I-shaped yarn trays output from the discharge port. The feeding slide rail 121 is used to transport the feeding component 122, which receives the I-shaped yarn trays, to the winding station of the winding unit 2 for fixing. The feeding slide rail 121 is also used to retract the feeding component 122 to receive new I-shaped yarn trays after the winding unit 2 has fixed the I-shaped yarn trays.

[0089] In some embodiments of the present invention, the yarn tray groove 11 is square columnar and inclined downward. The discharge port is located at the downward end of the yarn tray groove 11. The yarn tray support 12 also includes a blocking sliding member 123. The blocking sliding member 123 is connected to the feeding slide rail 121. The groove of the feeding member 122 is arc-shaped. The bottom of the blocking sliding member 123 is connected to the bottom shaft pin of the feeding member 122. The bottom of the blocking sliding member 123 is connected to the side of the feeding member 122 through a second spring 124. The upper part of the blocking sliding member 123 is a blocking sliding surface. The second spring 124 is used to provide elastic force so that the groove of the feeding member 122 faces upward and is in close contact with the blocking sliding surface.

[0090] In this embodiment, a plurality of I-shaped yarn trays can be sequentially placed in a square columnar yarn tray groove 11 that matches the size of the I-shaped yarn trays. The yarn tray groove 11 is inclined downward, preferably at 75 degrees, so that the I-shaped yarn trays in the yarn tray groove 11 can slide out of the discharge port sequentially under the action of gravity. The discharge port faces the groove of the feeding component 122, and then the feeding component 122 slides on the feeding slide rail 121 to complete the feeding. When the feeding component 122 is not at the bottom of the discharge port, the blocking sliding component 123 blocks the discharge port to prevent the I-shaped yarn in the yarn tray groove 11 from rolling out.

[0091] Specifically, the workflow of the feeding unit 1 is as follows:

[0092] The I-shaped yarn disc falls from the discharge port into the groove of the feeding component 122. The blocking sliding component 123 transports the I-shaped yarn disc to the winding station along the feeding slide rail 121. During this period, the blocking sliding surface blocks the discharge port to prevent the I-shaped yarn disc in the yarn disc groove 11 from falling out.

[0093] After the I-beam yarn spool reaches the winding station, the rotatable end face 211 and the rotatable clamping face 222 clamp and fix the I-beam yarn spool. Then, the sliding blocking part and the feeding part 122 are retracted. When the feeding part 122 starts to retract, it is restricted by the I-beam yarn spool. Therefore, the feeding part 122 rotates around the shaft pin connection as the center, thereby releasing the I-beam yarn spool to continue retracting. After the feeding part 122 releases the I-beam yarn spool, it returns to the state of the groove facing upward under the action of the second spring 124. During the retraction, the blocking sliding surface continuously blocks the outlet until the groove of the feeding part 122 retracts to below the outlet. The blocking sliding surface and the upper groove of the groove of the feeding part 122 are flush and unobstructed, so that when retracting, the I-beam yarn spool rolls from the blocking sliding surface into the groove of the feeding part 122, waiting for the next feeding.

[0094] In this embodiment, the yarn tray groove 11 and the yarn tray support work together to achieve multiple automatic feeding functions. To facilitate feeding by the feeding component 122 along the feeding slide rail 121, a certain distance needs to be maintained between the discharge port and the feeding component 122, preferably a minimum distance of 15mm. Furthermore, to ensure unobstructed discharge, a notch is provided at the discharge port, preferably with a depth of 45mm. To ensure smooth sliding of the I-shaped yarn tray within the yarn tray groove 11, the width and height of the yarn tray groove 11 are both 1mm larger than the height and diameter of the I-shaped yarn tray. The yarn tray groove 11 is made of transparent material, allowing operators to easily observe the material level within it; the mounting hole in the yarn tray groove 1121 is a waist hole, allowing adjustment of its left-right and front-back positions.

[0095] like Figure 2 As shown, in some embodiments of the present invention, the yarn guiding device 23 is located above the winding station and includes a yarn guide eye 231, a yarn discharge rod 232 and a synchronous belt component 233;

[0096] Yarn is threaded through the yarn guide eye 231, which is located at one end of the yarn feeding rod 232. The timing belt component 233 is used to control the axial movement of the yarn feeding rod 232 and to move the yarn guide eye 231 to the feeding position. When the yarn guide eye 231 is in the feeding position, the yarn hanging down naturally from the yarn guide eye 231 is located on one side of the rotating clamping surface 222.

[0097] In this embodiment, the yarn guiding device 23 includes a yarn feeding rod 232, one end of which is provided with a yarn guide eye 231 through which the yarn passes. The yarn feeding rod 232 performs reciprocating yarn feeding operations via a synchronous belt component 233. The yarn guide eye 231 can be made of ceramic material to reduce damage caused by friction. Changing the position of the yarn guide eye 231 can change the position of the yarn. Before winding the yarn, the yarn guide eye 231 needs to be moved to the feeding position. The yarn hangs down from the yarn guide eye 231 at the feeding position to one side of the rotating clamping surface 222, so that the rotating clamping surface 222 can drive the yarn and clamp the yarn between the rotating clamping surface 222 and the I-beam yarn tray. After the yarn guide eye 231 carries the yarn end to the feeding position, the yarn tray support 12 sends the I-shaped yarn tray to the winding position. At this time, the I-shaped yarn tray is positioned between the rotatable end face 211 and the yarn end. Then, the cylinder pushes the rotating clamping surface 222 to clamp the yarn end from its naturally drooping state to the middle position of the side of the I-shaped yarn tray. When the I-shaped yarn tray rotates, the yarn end and the rotating clamping surface 222 rotate synchronously with the I-shaped yarn tray, realizing the function of automatic yarn starting. The boss of the rotating clamping surface 222, combined with the clamping force, can effectively hold the yarn and prevent it from slipping out, effectively avoiding yarn starting failure and improving the reliability of the system. During the winding stage, the yarn guide eye 231 is equipped with an upper limit and a lower limit for yarn placement. As the I-beam yarn disc rotates, the yarn guide eye 231 moves to the upper limit for yarn placement and reciprocates between the upper and lower limits. The yarn can then be automatically and evenly wound onto the I-beam yarn disc. The lower and upper limits for yarn placement are the starting and ending points of the reciprocating motion of the yarn guide eye 231 during yarn winding. The movement speed of the yarn guide eye 231 can be adjusted according to the rotation speed of the rotatable end face 211. Preferably, the yarn guide eye 231 moves the width of one yarn when the rotatable end face 211 rotates one revolution.

[0098] like Figure 3 As shown, in some embodiments of the present invention, the winding unit 2 further includes a cutting device 24 located at the lower part of the winding station. The cutting device 24 includes a cutting piece 241 and a second cylinder 242. The second cylinder 242 is used to control the movement of the cutting piece 241.

[0099] After the yarn is wound on the spool, the second cylinder 242 controls the cutting piece 241 to cut the yarn.

[0100] In this embodiment, after the yarn is wound onto the I-beam roll, the cutting device 24 can automatically cut the yarn to collect the fully loaded I-beam roll. In this embodiment, the cutting component 241 can be a pneumatic scissor made of high-quality tool steel, which has excellent blade rigidity and wear resistance.

[0101] like Figure 6As shown, in some embodiments of the present invention, a feeding device 3 located at the lower part of the winding station is also included. The feeding device 3 includes a yarn tray gripper 31, a telescopic cylinder 32 and a servo motor 33. The telescopic cylinder 32 is used to control the yarn tray gripper 31 to move up and down, and the servo motor 33 is used to control the yarn tray gripper 31 to rotate left and right.

[0102] After the I-beam yarn is wound, the telescopic cylinder 32 controls the yarn disc clamp 31 to clamp the I-beam yarn at the winding station, moves the rotating clamping surface 222 to release the I-beam yarn, and the telescopic cylinder 32 controls the yarn disc clamp to move downward. The feeding unit 1 moves the new I-beam yarn to the winding station, moves the rotating clamping surface 222 to clamp the new I-beam yarn, and the servo motor 33 controls the yarn disc clamp to tilt towards the cutting piece 241 to make the yarn tensioned. The second cylinder 242 controls the cutting piece 241 to cut the yarn, and the telescopic cylinder 32 and the servo motor 33 control the yarn disc clamp to move to the preset position to release the I-beam yarn.

[0103] In this embodiment, after the yarn tray is filled with yarn, the yarn tray gripper 31 moves to the winding station and grabs the full yarn tray. To increase friction, buffer clamping force, and reduce noise, a rubber pad is provided inside the yarn tray gripper 31. The servo motor 33 for left and right rotation is provided with a clearance position and a cutting position. After the yarn tray gripper 31 grabs the yarn tray, it rotates the yarn tray to avoid the boss on the rotatable end face 211, preferably by 3 degrees. Then the yarn tray is moved downwards to vacate the winding station. The new I-beam yarn spool is moved to the winding station using the feeding unit 1. The yarn is then guided to one side of the rotating clamping surface 222 using the yarn guiding device 23. The rotating clamping surface 222 is moved so that the rotatable end face 211 and the rotating clamping surface 222 clamp the yarn and the new I-beam yarn spool. The yarn spool jaws 31 then move to the cutting position, tautening the yarn on the fully loaded I-beam yarn spool. This taut tension ensures that the tail yarn will not slip or shift during cutting, reliably completing each tail yarn cutting operation. Repeating these steps achieves automatic feeding, winding, and unloading. The feeding action takes 1-2 seconds, and the unloading action takes 6-7 seconds, significantly improving work efficiency.

[0104] This invention also provides an automatic yarn winding method, based on any of the automatic yarn winding devices described above, the method comprising:

[0105] The feeding unit 1 is used to transport the I-beam spool of yarn to be wound to the winding station;

[0106] The yarn is guided to one side of the rotating clamping surface 222 using the yarn guiding device 23;

[0107] After the I-beam yarn spool reaches the winding station, the moving shaft 221 drives the rotating clamping surface 222 to move toward the rotatable end face 211, so that the I-beam yarn spool and the yarn are clamped between the rotatable end face 211 and the rotating clamping surface 222.

[0108] The rotating end face drives the I-shaped yarn disc and the rotating clamping surface 222 to rotate, while the yarn guiding device 23 reciprocates along the axis of the I-shaped yarn disc to make the yarn wound on the I-shaped yarn disc.

[0109] In some more specific embodiments, the detailed process of continuous operation is as follows:

[0110] The first step is to fill the yarn tray groove 11 with the I-shaped yarn trays, and let the yarn pass through the yarn guide eye 231 and hang down naturally. The hanging length is slightly greater than the diameter of the end face of the I-shaped yarn tray. The first empty I-shaped yarn tray falls into the rotating groove of the material part 122 on the yarn tray support 12.

[0111] The second step involves the yarn guide eye 231 driving the yarn to the loading position, and then the cylinder driving the yarn tray support 12 to transport the empty I-shaped yarn tray to the winding position.

[0112] In the third step, the thrust component 225 pushes the rotating clamping surface 222 to press the empty I-shaped yarn spool and yarn at the winding station against the rotatable end face 211. The yarn spool support 12 returns to its original position under the yarn spool groove 11. At this time, the groove of the feeding component 122 automatically catches the falling second empty I-shaped yarn spool.

[0113] In the fourth step, the power unit 214 drives the I-beam yarn disc and the yarn to rotate. After the start is completed, the yarn guide device 23 moves back and forth to evenly distribute the yarn on the I-beam yarn disc. After the winding is completed, the power unit 214 stops rotating.

[0114] In the fifth step, the yarn spool clamp 31 is pushed by the telescopic cylinder 32 to the winding station to clamp the fully wound I-shaped yarn spool, while the thrust component 225 retracts and releases the I-shaped yarn spool.

[0115] In the sixth step, the servo motor 33 drives the telescopic cylinder 32, the yarn disc clamp 31, and the fully rolled I-shaped yarn disc to rotate to the clearance position, the I-shaped yarn disc separates from the protrusion stuck on the side rib, and then the telescopic cylinder 32 retracts.

[0116] In the seventh step, the servo motor 33 continues to rotate to the cutting position, while the yarn guide eye 231 moves to the feeding position again, and the yarn tray support 12 transports the second empty I-shaped yarn tray to the winding position.

[0117] Step 8: Rotate the clamping surface 222 to press the yarn against the second empty I-beam yarn tray. Then, the yarn tray support 12 returns to the original position of the yarn tray groove 11. At this time, the tail yarn of the first empty I-beam yarn tray is in a taut state, and the cutting piece 241 extends under the action of the cylinder to cut the tail yarn. Then repeat steps 4 to 8 to automatically wind the remaining empty I-beam yarn trays.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic yarn winding device, characterized in that, Includes a feeding unit (1) and a winding unit (2); The feeding unit (1) is used to transport the I-beam spool of yarn to be wound to the winding station; The winding unit (2) includes a rotating device (21), a clamping device (22), and a movable yarn guide device (23). The rotating device (21) includes a rotatable end face (211), and the clamping device (22) includes a rotating clamping surface (222) and an axially movable shaft (221). The shaft (221) is rotatably connected to the rotating clamping surface (222). The winding station is located between the rotatable end face (211) and the clamping device (22). The yarn guide device (23) is threaded with yarn and is used to guide the yarn to one side of the rotating clamping surface (222) on the I-beam yarn tray. After reaching the winding station, the shaft (221) is moved to drive the rotating clamping surface (222) to move toward the rotatable end face (211). During the movement of the rotating clamping surface (222), it first contacts the side of the I-beam yarn disc and clamps the yarn between the rotating clamping surface (222) and the I-beam yarn disc. Then it continues to move so that the I-beam yarn disc and the yarn are clamped between the rotatable end face (211) and the rotating clamping surface (222). The rotating end face (211) is rotated to drive the I-beam yarn disc and the rotating clamping surface (222) to rotate. At the same time, the yarn guide device (23) is moved back and forth along the axis of the I-beam yarn disc so that the yarn is wound on the I-beam yarn disc. The rotatable end face (211) and / or the rotating clamping surface (222) are provided with a plurality of protrusions. The protrusions are used to hold the side ribs on the I-beam yarn disc and trip the yarn when the I-beam yarn disc is in close contact with the rotatable end face (211) to prevent the I-beam yarn disc from turning over when the rotation speed is high. The yarn guiding device (23) is located above the winding station and includes a yarn guide eye (231), a yarn feeding rod (232), and a synchronous belt component (233). The yarn guide eye (231) is threaded with yarn and is located at one end of the yarn feeding rod (232). The synchronous belt component (233) is used to control the axial movement of the yarn feeding rod (232) and to move the yarn guide eye (231) to the feeding position. When the yarn guide eye (231) is located at the feeding position, the yarn hanging down naturally from the yarn guide eye (231) is located on one side of the rotating clamping surface (222).

2. The automatic yarn winding device according to claim 1, characterized in that, The rotating device (21) also includes a shaft-shaped telescopic component (212), a concentric limiting component (213), and a power component (214). The power assembly (214) includes a motor and a first cylinder. The rotating shaft of the motor is hollow and is connected to the rotatable end face (211). The rotatable end face (211) is provided with a first through hole. The telescopic assembly (212) passes through the rotating shaft, with one end connected to the first cylinder and the other end connected to the concentric limiting member (213). The telescopic assembly (212) is extended and retracted by the first cylinder to control the concentric limiting member (213) to be hidden in or out of the first through hole.

3. The automatic yarn winding device according to claim 1, characterized in that, The clamping device (22) further includes a first locking ring (223), a first spring (224), a thrust component (225), and a second locking ring (226) arranged sequentially along the shaft (221), wherein the first locking ring (223) is close to the rotating clamping surface (222). The first locking ring (223) and the second locking ring (226) are fixedly sleeved on the shaft (221), and the thrust component (225) and the first spring (224) are slidably sleeved on the shaft (221); When it is necessary to clamp the I-beam yarn spool on the winding station, the thrust component (225) moves toward the first locking ring (223) to sequentially push the first spring (224) and the first locking ring (223) to move. The first locking ring (223) drives the shaft (221) to move so that the rotating clamping surface (222) contacts the I-beam yarn spool. The thrust component (225) continues to move to compress the first spring (224) and apply clamping force to the rotating clamping surface (222). When it is not necessary to clamp the I-beam yarn spool on the winding station, the thrust component (225) moves toward the second locking ring (226) to sequentially push the second locking ring (226), the shaft (221) and the rotating clamping surface (222) to release the I-beam yarn spool.

4. The automatic yarn winding device according to claim 1, characterized in that, The feeding unit (1) includes a yarn tray groove (11) and a yarn tray support (12). The yarn tray groove (11) is used to store multiple I-shaped yarn trays to be wound. The yarn tray groove (11) includes a discharge port. The yarn tray support (12) includes a feeding slide rail (121) and a feeding component (122) that can slide on the feeding slide rail (121). The feeding component (122) is provided with a groove for receiving the I-shaped yarn trays output from the discharge port. The feeding slide rail (121) is used to transport the feeding component (122) that receives the I-shaped yarn trays to the winding station of the winding unit (2) for fixing. The feeding slide rail (121) is also used to retract the feeding component (122) to receive new I-shaped yarn trays after the winding unit (2) has fixed the I-shaped yarn trays.

5. The automatic yarn winding device according to claim 4, characterized in that, The yarn tray groove (11) is square columnar and tilts downward. The discharge port is located at the downward end of the yarn tray groove (11). The yarn tray support (12) also includes a blocking sliding member (123). The blocking sliding member (123) is connected to the feeding slide rail (121). The groove of the feeding member (122) is arc-shaped. The bottom of the blocking sliding member (123) is connected to the bottom shaft of the feeding member (122) by a pin. The bottom of the blocking sliding member (123) is connected to the side of the feeding member (122) by a second spring (124). The upper part of the blocking sliding member (123) is a blocking sliding surface. The second spring (124) is used to provide elastic force so that the groove of the feeding member (122) faces upward and is close to the blocking sliding surface.

6. The automatic yarn winding device according to claim 1, characterized in that, The winding unit (2) also includes a cutting device (24) located at the lower part of the winding station. The cutting device (24) includes a cutting piece (241) and a second cylinder (242). The second cylinder (242) is used to control the movement of the cutting piece (241). After the yarn is wound on the spool, the second cylinder (242) controls the cutting piece (241) to cut the yarn.

7. The automatic yarn winding device according to claim 6, characterized in that, It also includes a feeding device (3) located at the lower part of the winding station. The feeding device (3) includes a yarn disc gripper (31), a telescopic cylinder (32) and a servo motor (33). The telescopic cylinder (32) is used to control the yarn disc gripper (31) to move up and down, and the servo motor (33) is used to control the yarn disc gripper (31) to rotate left and right. After the I-beam yarn is wound, the telescopic cylinder (32) controls the yarn disc clamp (31) to clamp the I-beam yarn at the winding station, moves the rotating clamping surface (222) to release the I-beam yarn, the telescopic cylinder (32) controls the yarn disc clamp to move downward, the feeding unit (1) moves the new I-beam yarn to the winding station, moves the rotating clamping surface (222) to clamp the new I-beam yarn, the servo motor (33) controls the yarn disc clamp to tilt towards the cutting piece (241) to make the yarn tensioned, the second cylinder (242) controls the cutting piece (241) to cut the yarn, and the telescopic cylinder (32) and the servo motor (33) control the yarn disc clamp to move to the preset position to release the I-beam yarn.

8. A method for automatically winding yarn, characterized in that, Based on any one of the automatic yarn winding devices according to claims 1-7, the method includes: The feeding unit (1) is used to transport the I-beam spool of yarn to be wound to the winding station; The yarn is guided to one side of the rotating clamping surface (222) using the yarn guiding device (23); After the I-beam yarn spool reaches the winding station, the shaft (221) is moved to drive the rotating clamping surface (222) to move toward the rotatable end face (211), so that the I-beam yarn spool and the yarn are clamped between the rotatable end face (211) and the rotating clamping surface (222); Rotating the rotatable end face (211) causes the I-beam yarn disc and the rotating clamping surface (222) to rotate, while the yarn guiding device (23) moves back and forth along the axial direction of the I-beam yarn disc to make the yarn wound on the I-beam yarn disc.

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