Warping machine automatic circulation yarn feeding system and yarn feeding method

Abstract

The invention discloses an automatic circulation yarn feeding system and method for a warping machine, and the system comprises a main conveying rail which is arranged in the longitudinal direction, a warping rail which is arranged on one side of the main conveying rail and is arranged in the transverse direction, a full yarn standby rail, a yarn feeding waiting rail, a full yarn temporary storage rail, and a yarn hanging chain which is used for fixing a yarn hanging frame. The yarn hanging chain is in rolling connection with the main conveying rail, the warping rail, the yarn feeding waiting rail, the yarn feeding conveying rail and the full yarn temporary storage rail and can drive the yarn hanging frame to circularly run along the rails. According to the invention, the interactive air track suitable for automatic circulating yarn feeding of the warping machine is established, and the yarn feeding station and the tube discharging and recycling station are moved out of the fixed internal area of the warping machine to the external set area of the warping machine, so that fixed-point empty tube recycling and automatic yarn hanging of cone yarns can be conveniently realized; and a plurality of yarn hanging chains are matched to realize the running and circulation of the yarn hanging frame on each track, so that the automatic circulating yarn feeding of one or more warping machines is realized.

Description

Technical Field

[0001] This invention relates to the field of warping machine equipment technology, specifically to an automatic circulating yarn feeding system and method for a warping machine. Background Technology

[0002] A warping machine is a type of textile machinery used for warping yarn. It is mainly divided into two categories: batch warping machines and sliver warping machines. A yarn rack is attached to one side of the warping machine, with several yarn-hanging rods on it. When the warping machine needs to load yarn, it is mainly done manually, which is inefficient. Currently, a few textile companies have implemented automated yarn loading, which involves moving an automated yarn loading mechanism and a yarn loading carriage to the yarn rack of the warping machine for automatic yarn loading. This improves work efficiency and reduces manual labor intensity. However, the yarn rack of the warping machine is usually arranged in a V-shape, and the space at the end angle is small. Automated yarn loading equipment cannot enter the end angle, and manual yarn loading is still required at the end of the warping machine, making full automation practically impossible. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this invention provides an automatic circulating yarn feeding system and method for warping machines. By arranging interactive aerial tracks and cooperating with multiple yarn hanging chains, the yarn hanging frame can run and circulate on each track, realizing automatic yarn feeding for one or more warping machines.

[0004] The technical solution adopted in this invention is as follows: In a first aspect, the present invention provides an automatic circulating yarn feeding system for warping machines, used for automatically feeding yarn onto at least one warping machine, comprising a main conveyor track arranged longitudinally and warping tracks, a yarn feeding waiting track, and a full yarn storage track arranged transversely on one side of the main conveyor track; the warping tracks are arranged in 2n configurations, with each pair of warping tracks corresponding to one warping machine; the yarn feeding waiting track is located on the outer side of one of the outermost warping tracks; the full yarn storage track is located on the side of the yarn feeding waiting track away from the warping tracks; one end of each of the warping tracks, the yarn feeding waiting track, and the full yarn storage track is connected to the main conveyor track via a track divider; the end of the yarn feeding waiting track away from the main conveyor track is connected to the end of the full yarn storage track away from the main conveyor track via the yarn feeding conveyor track. The system also includes yarn hanging chains, of which several chains are provided. Each yarn hanging chain is equipped with several yarn hanging frames that match the number of yarn bobbins required by the warping machine. The yarn hanging chains are tumblingly connected to the main conveying track, the warping track, the yarn loading waiting track, the yarn loading conveying track, the full yarn temporary storage track, and the empty tube recovery track, and can drive the yarn hanging frames to circulate along each track.

[0005] Furthermore, each of the warping tracks is provided with at least one full-yarn spare track on one side, and the full-yarn spare track is connected to the main conveying track through a track splitter.

[0006] Furthermore, at least one empty tube recovery track is provided on the side of the full yarn temporary storage track away from the yarn loading waiting track, and the empty tube recovery track is connected to the main conveying track through a track divider.

[0007] Furthermore, the main conveying track extends away from the end of the full yarn storage track and beyond the outermost warping track.

[0008] Furthermore, when there is at least one yarn feeding waiting track, and two or more yarn feeding waiting tracks are provided, the multiple yarn feeding waiting tracks are arranged in parallel, and the two ends of each yarn feeding waiting track are respectively connected to the main conveying track and the yarn feeding conveying track. When there is at least one full yarn storage track, and two or more full yarn storage tracks are provided, the multiple full yarn storage tracks are arranged in parallel, and the two ends of each full yarn storage track are respectively connected to the main conveying track and the yarn feeding conveying track.

[0009] Furthermore, a yarn feeding device is provided on the side of the yarn feeding conveyor track near the warping track and is used to hang the yarn bobbins on the yarn hanging frame.

[0010] Furthermore, a tube unloading and recycling device is provided on one side of the empty tube recycling track for removing and recycling empty tubes from the yarn hanging rack.

[0011] Furthermore, a warping position fixing device is provided on one side of each warping track and is used to synchronously fix the bottom ends of several yarn hangers on the corresponding warping track when the warping machine is working. A yarn-fixing device is provided on one side of the yarn-feeding conveyor track and is used to fix the bottom end of the single yarn-hanging frame to be fed when the yarn-feeding device is hanging yarn. A tube unloading fixing device is installed directly below the tube recovery track and is used to fix the bottom end of the single hanging yarn frame of the tube to be unloaded when the tube unloading and recovery device takes out the tube.

[0012] Secondly, the present invention provides an automatic circulating yarn feeding method for a warping machine, implemented using the aforementioned automatic circulating yarn feeding system for a warping machine, comprising the following steps: (1) There are several empty yarn hanging frames on the yarn waiting track. The yarn hanging chain drives each empty yarn hanging frame to be transported from the yarn waiting track to the yarn conveying track. At the yarn feeding station on the side of the yarn conveying track, the yarn is hung on the hanging frame to form a full yarn hanging frame. The yarn hanging chain drives the full yarn hanging frame to be transported from the yarn conveying track to the full yarn temporary storage track. (2) After the yarn hanging racks on the yarn hanging chain are all full of yarn cones, the yarn hanging chain of the full yarn hanging rack is transported from the full yarn temporary storage track to the main conveying track, and then from the main conveying track to the warping track; (3) Repeat steps (1) and (2) above so that both warping tracks of the warping station of the warping machine are equipped with full yarn hanging frames that match the number of yarns required by the warping machine, and the warping machine performs warping action; and while the warping machine is warping, step (1) is repeated and the full yarn hanging frames are temporarily stored in the full yarn temporary storage track or the full yarn spare track. (4) After the warping machine finishes working, the full yarn hanging frame on the warping track becomes an empty tube hanging frame. The hanging chain drives the empty tube hanging frame to the main conveying track or the hanging chain drives the empty yarn hanging frame after manual recycling to the main conveying track. Then the hanging chain fully loaded with full yarn hanging frames is transported from the full yarn temporary storage track or the full yarn spare track to the warping track. (5) The yarn hanging chain continues to drive the empty yarn hanging frame from the main conveying track to the yarn waiting track to wait for yarn to be loaded, or the empty tube hanging frame on the main conveying track is manually recycled and then transported to the yarn waiting track to wait for yarn to be loaded, or the yarn hanging chain drives the empty tube hanging frame to the empty tube recycling track for automatic tube unloading and recycling and then transported to the yarn waiting track to wait for yarn to be loaded. Repeat the above steps to achieve automatic cyclic yarn feeding.

[0013] Furthermore, in step (1), when hanging yarn at the yarn feeding station on the side of the yarn feeding track, the empty yarn hanging frame is fixed at the yarn feeding station. In step (2), after the yarn hanging chain of the fully loaded yarn hanging frame is transported to the warping track, the fully loaded yarn hanging frame is fixed at the warping station. In step (6), when the empty pipe is taken out at the empty pipe unloading station of the empty pipe recycling track, the empty pipe hanging frame is fixed at the empty pipe unloading station.

[0014] The beneficial effects of this invention are as follows: (1) The present invention provides an automatic circulating yarn feeding system for warping machines. By setting a main conveying track arranged longitudinally and a warping track, a full yarn spare track, a yarn feeding waiting track, and a full yarn temporary storage track arranged transversely on one side of the main conveying track, an interactive aerial track for automatic circulating yarn feeding of warping machines is established. In conjunction with multiple yarn hanging chains, the yarn hanging frame can run and rotate on each track, realizing automatic yarn feeding of one or more warping machines, saving manpower and reducing labor intensity. (2) The present invention provides an automatic circulating yarn feeding system for a warping machine. Each track adopts a specific layout to transfer the yarn feeding station from the internal area of ​​the warping machine to a set area outside the warping machine, thereby realizing the fixed-point automatic yarn feeding of the yarn package. This facilitates the centralized processing and docking of yarn packages in the form of tray yarn and woven bag yarn, without being limited by the internal space of the warping machine. (3) The present invention provides an automatic circulating yarn feeding system for a warping machine, and also provides an empty tube recovery track to realize the transfer of the tube unloading and recovery station from the internal area of ​​the warping machine to a set area outside the warping machine, so as to realize the fixed-point recovery of empty tubes; in addition, an appropriate automatic tube unloading and recovery device can be configured on the side of the empty tube recovery track to perform automatic tube unloading and recovery. (4) The present invention provides an automatic circulating yarn feeding system for a warping machine. Each track adopts a specific layout to ensure that the yarn hanging chain drives the yarn hanging frame to run on each track, so that the yarn hanging rod on the yarn hanging frame always faces outward, eliminating the risk of yarn collision. At the same time, it also facilitates yarn feeding and tube unloading operations at the yarn feeding station and tube unloading station. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the automatic circulating yarn feeding system for a warping machine in Embodiment 1 of the present invention; Figure 2 This is the automatic circulating yarn feeding system for two warping machines in Embodiment 1 of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the automatic circulating yarn feeding system in Embodiment 1 of the present invention. Figure 4 This is a schematic diagram of the running direction of the yarn hanging chain driving the fully loaded yarn bobbin hanging frame from the yarn feeding conveyor track to the warping track and the full yarn standby track in the automatic circulating yarn feeding system of Embodiment 1 of the present invention. Figure 5 This is a schematic diagram of the running direction of the yarn hanging chain driving the empty tube yarn hanging frame from the warping track to the empty tube recovery track in the automatic circulating yarn feeding system of Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the running direction of the yarn hanging chain driving the fully loaded yarn bobbin hanging frame from the full yarn spare track to the warping track in the automatic circulating yarn feeding system of Embodiment 1 of the present invention. Figure 7 This refers to the automatic circulating yarn feeding system for the warping machine in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the warping position fixing device in Embodiment 3 of the present invention; Figure 9 for Figure 8 Enlarged view of the structure at point B in the middle; Figure 10 for Figure 8Enlarged view of the structure at point C; Figure 11 This is a schematic diagram of the yarn fixing device in Embodiment 4 of the present invention; Figure 12 This is a schematic diagram of the structure of the empty pipe fixing device in Embodiment 5 of the present invention; Figure 13 This is a schematic diagram of the pipe unloading and recovery device in Embodiment 6 of the present invention; Figure 14 This is a schematic diagram of the upper yarn pushing tube mechanism in Embodiment 6 of the present invention; Figure 15 This is a schematic diagram of the lower yarn tube recovery mechanism in Embodiment 6 of the present invention; Figure 16 This is a schematic diagram of the lower yarn tube guide basket in Embodiment 6 of the present invention; Figure 17 This is a schematic diagram of the bottom yarn tube guide plate in Embodiment 6 of the present invention.

[0017] The image is labeled as follows: A. Warping machine; 1. Main conveyor track; 2. Warping track; 3. Yarn loading waiting track; 4. Full yarn temporary storage track; 5. Empty tube recovery track; 6. Yarn loading conveyor track; 7. Inclined connecting track; 8. Full yarn spare track; 9. Yarn hanger; 10. Warping position fixing device; 101. Multi-station clamping mechanism fixing seat; 102. Multi-station clamping drive cylinder; 103. Multi-station clamping arm fixing seat; 104. Multi-station clamping arm; 105. Multi-station moving drive cylinder; 106. Multi-station moving slider; 107. Multi-station moving slide rail; 11. Yarn feeding device; 12. Yarn feeding fixing device; 121. Single-station clamping mechanism fixing seat; 122. Single-station clamping drive cylinder; 123. Single-station clamping arm fixing seat; 124. Single-station clamping arm; 125. Single-station moving drive cylinder; 126. Single-station moving slider; 127. Single-station moving slide rail; 1 3. Yarn tube unloading and recovery device; 13-1. Upper yarn tube pushing mechanism; 13-2. Lower yarn tube pushing mechanism; 131. Yarn tube push rod; 132. Yarn tube push rod drive cylinder; 133. Push rod slider; 134. Push rod slide rail; 135. U-shaped connector; 14. Lower yarn tube recovery mechanism; 141. Inclined conveyor line; 1411. Inclined conveyor frame; 1412. Inclined conveyor belt; 1413. Conveyor belt drive motor; 141 4. Yarn tube conveying baffle; 142. Lower layer yarn tube guide basket; 1421. Side opening of guide basket; 1422. Bottom opening of guide basket; 1423. Inclined bottom plate of guide basket; 143. Bottom layer yarn tube guide plate; 1431. Bottom layer yarn tube baffle; 1432. Bottom layer yarn tube lever; 1433. Lever drive cylinder; 15. Upper layer yarn tube recovery basket; 16. Lower layer yarn tube recovery basket; 17. Column; 18. Empty tube fixing device. Detailed Implementation

[0018] This invention provides an automatic circulating yarn feeding system and method for warping machines. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] Example 1 Reference Figure 1-3 This embodiment provides an automatic circulating yarn feeding system for warping machines, used to automatically feed yarn onto one or more warping machines A. The system includes a main conveying track 1 arranged longitudinally and warping track 2, yarn feeding waiting track 3, full yarn temporary storage track 4, and empty tube recovery track 5 arranged laterally on one side of the main conveying track 1. Each track is an overhead track, which is arranged in the air by track columns. The system also includes yarn hanging chains, with several yarn hanging chains and several yarn hanging frames 9 on each yarn hanging chain that match the number of yarn bobbins required by the warping machine. The yarn hanging chains are connected to each track by roller assemblies and can drive the yarn hanging frames 9 to circulate along each track.

[0020] The aforementioned warping track 2 is located at the warping station and is used to place the full-yarn hanger loaded with yarn bobbins, thereby providing yarn to the warping machine. There are 2n warping tracks 2, with each pair of warping tracks 2 corresponding to one warping machine, and one end of each warping track 2 is connected to the main conveyor track 1 via a track divider. Furthermore, the two warping tracks 2 of each warping machine are symmetrically arranged, and the two warping tracks 2 are either parallel or V-shaped. When arranged in a V-shape, the opening distance between the two warping tracks 2 gradually decreases towards the side furthest from the main conveyor track 1.

[0021] Each of the above-mentioned warping tracks 2 is also provided with a warping position fixing device 10 on one side, which is used to fix several yarn hangers 9 on each warping track 2 when the warping machine is working.

[0022] The yarn loading waiting track 3 is set at the yarn loading waiting station and is used to temporarily store empty yarn racks. The yarn loading waiting track 3 is set on the outer side of one of the outermost warping tracks 2. There is at least one yarn loading waiting track 3. When there are two or more yarn loading waiting tracks 3, they are arranged in parallel. The ends of the multiple yarn loading waiting tracks 3 that are closer to the main conveying track 1 are connected to the main conveying track 1 through track dividers. The other ends are connected to the end of the full yarn temporary storage track 4 that is away from the main conveying track through the yarn loading conveying track 6. The multiple yarn loading waiting tracks 3 are connected to the yarn loading conveying track 6 through track dividers.

[0023] In addition, when two or more yarn feeding waiting tracks 3 are set, inclined connecting tracks 7 for the convergence of multiple yarn feeding waiting tracks 3 can be set at both ends of the multiple yarn feeding waiting tracks 3, so that the multiple yarn feeding waiting tracks 3 are arranged in a parallelogram. One end of one inclined connecting track 7 is connected to the main conveying track 1 through a track splitter, and one end of another inclined connecting track 7 is connected to the yarn feeding conveying track 6 through a track splitter. The two ends of the multiple yarn feeding waiting tracks 3 are connected to the inclined connecting tracks 7 through track splitters respectively.

[0024] The aforementioned yarn feeding conveyor track 6 is set at the yarn feeding station. A yarn feeding device 10 is set on the side of the track 2 near the yarn warping track 2 and is used to hang the yarn bobbins on the yarn hanging frame 9. The aforementioned yarn feeding device 11 can be an automatic yarn feeding robot. A yarn feeding fixing device 12 is also set on one side of the yarn feeding device 11. The yarn feeding fixing device 12 is set at the bottom of the yarn hanging frame 9 and is used to fix the bottom of the yarn hanging frame 9.

[0025] The aforementioned full yarn temporary storage track 4 is set at the full yarn temporary storage station and is used to temporarily store the yarn hanging rack 9 with full yarn bobbins. The aforementioned full yarn temporary storage track 4 is set on the side of the yarn loading waiting track 3 away from the warping track 2, and at least one full yarn temporary storage track 4 is set. When two or more full yarn temporary storage tracks 4 are set, the multiple full yarn temporary storage tracks 4 are set in parallel, and the two ends of each full yarn temporary storage track 4 are respectively connected to the main conveying track 1 and the yarn loading conveying track 6 through a track divider.

[0026] The aforementioned empty tube recovery track 5 is installed at the empty tube unloading station and is used to place the yarn hanging rack 9 with empty tubes. The aforementioned empty tube recovery track 5 is installed on the side of the full yarn temporary storage track 4 away from the yarn loading waiting track 3. At least one empty tube recovery track 5 is provided. When two or more empty tube recovery tracks 5 are provided, the multiple empty tube recovery tracks 5 are arranged in parallel, and the ends of the multiple empty tube recovery tracks 5 closest to the main conveying track 1 are respectively connected to the main conveying track 1 through track dividers.

[0027] Each of the aforementioned empty tube recovery tracks 5 is equipped with a tube unloading and recovery device 13 on the side near the full yarn spare track 8, which is used to remove and recover empty tubes from the yarn hanging frame 9. If the tube unloading and recovery device 13 is used, it is located at the end of the empty tube recovery track 5 near the main conveying track 1. Specifically, the tube unloading and recovery device 13 can adopt a conventional push rod mechanism to push the empty tube from the yarn hanging rod and drop it into the empty tube box. In addition, when the tube unloading and recovery device 13 is used to unload the empty tube, an empty tube fixing device 18 needs to be installed on one side of the tube unloading and recovery device 13 to fix the bottom end of the yarn hanging frame 9 when the tube unloading and recovery device 13 removes the empty tube.

[0028] In this embodiment, each of the aforementioned warping tracks 2 is also provided with at least one full-yarn spare track 8 on one side for temporarily storing yarn hangers full of bobbins, and the full-yarn spare track 8 is connected to the main conveying track 1 through a track divider. When the bobbins on the warping track 2 are warped and the empty bobbin yarn hangers are removed, the yarn hangers full of bobbins stored on the full-yarn spare track 8 can be directly conveyed to the warping track 2.

[0029] In addition, in this embodiment, the main conveying track 1 extends away from the empty tube recovery track 5 and beyond the outermost warping track 2. The extension end of the main conveying track 1 beyond the outermost warping track 2 needs to reserve a distance of at least one yarn hanging chain to ensure that the yarn hanging chain has space to change the running direction. In order to improve the space utilization, the extension end of the main conveying track 1 can be bent in the arrangement direction of the warping track 2.

[0030] In this embodiment, the installation direction of the track divider can be arranged according to the running direction. However, it should be noted that when the angle between the track divider of each track and the running direction of the yarn hanging chain on the main conveying track is an acute angle, the tail of the yarn hanging chain needs to run beyond the track, and then the yarn hanging chain runs in the opposite direction on the main conveying track. That is, the tail of the yarn hanging chain first enters the corresponding track from the main conveying track through the track divider. When the angle between the track divider of each track and the running direction of the yarn hanging chain on the main conveying track is an obtuse angle, there is no need to change direction, and the yarn hanging chain can directly drive the yarn hanging frame into the corresponding track.

[0031] In this embodiment, each track is also equipped with a matching drive mechanism. The drive mechanism has rollers and can cooperate with the roller assembly of the yarn hanging chain to drive the yarn hanging chain to run along the track. The specific structure and connection method of the drive mechanism and the yarn hanging chain can be implemented by existing technology, and will not be described in detail in this embodiment. In addition, each track is also equipped with a positioning area as needed, and the positioning area is equipped with a through-beam photoelectric sensor. The through-beam photoelectric sensor cooperates with the yarn hanging chain. When it detects the yarn hanging chain, the drive mechanism is turned off, that is, the yarn hanging chain stops driving the yarn hanging frame. In addition, at the yarn loading station and the empty tube unloading station, yarn is usually loaded or empty tubes are unloaded for a single yarn hanging frame. At this time, it is necessary to control the start and stop interval of the drive mechanism on the corresponding track. After the yarn loading or empty tube unloading of a yarn hanging frame is completed, the drive mechanism controls the yarn hanging chain to move a certain distance, moving the completed yarn hanging frame out of the station, and at the same time, the next yarn hanging frame enters the corresponding station.

[0032] Reference Figure 4-6 The automatic yarn feeding process based on the above-mentioned automatic yarn feeding system of the warping machine is as follows: (1) The yarn hanging chain on the yarn waiting track has several empty yarn hanging frames (i.e. empty hanging frames, with no yarn bobbins or empty tubes on the hanging rods). The yarn hanging chain drives each empty yarn hanging frame to be transported from the yarn waiting track to the yarn conveying track. At the yarn feeding station on the side of the yarn conveying track, the yarn bobbins are hung on the hanging frames to form full yarn hanging frames (i.e., the hanging frames are full of yarn bobbins). The yarn hanging chain drives the full yarn hanging frames to be transported from the yarn conveying track to the full yarn temporary storage track. (2) After the yarn hanging racks on the yarn hanging chain are all full of yarn cones, the yarn hanging chain with the full yarn hanging racks is transported from the full yarn temporary storage track to the main conveying track, and then from the main conveying track to the warping track. (3) Repeat steps (1) and (2) above so that both warping tracks of the warping machine are equipped with full yarn hanging frames that match the number of yarns required by the warping machine, and the warping machine performs warping action; while the warping machine is warping, step (1) is repeated and the full yarn hanging frames are temporarily stored in the full yarn temporary storage track and / or the full yarn spare track. (4) After the warping machine finishes working, the full yarn hanging frame on the warping track becomes an empty tube hanging frame (that is, the yarn on the hanging frame is consumed and only empty tubes remain). The hanging chain drives the empty tube hanging frame to the main conveying track, and then to the empty tube recycling track. (5) After the yarn hanging chain drives the empty tube yarn hanging frame to the empty tube recycling track or during the conveying process, the yarn hanging chain of the fully loaded yarn hanging frame is conveyed from the full yarn temporary storage track or the full yarn spare track to the warping track. (6) The yarn hanging chain drives the empty tube yarn hanging frame to run in the opposite direction along the empty tube recycling track, that is, it drives the empty tube yarn hanging frame to run towards the direction of the unloading tube recycling device. Then, at the unloading station on the side of the empty tube recycling track, the empty tube on the yarn hanging frame is removed to form an empty yarn hanging frame. After the empty tube is unloaded, the yarn hanging chain drives the empty yarn hanging frame to be transported to the yarn loading waiting track to wait for yarn loading. Repeat the above steps to achieve automatic cyclic yarn feeding.

[0033] In addition, in step (1) above, when the yarn is hung at the yarn feeding station on the side of the yarn feeding conveyor track, the yarn feeding fixing device fixes the corresponding empty yarn hanging frame at the yarn feeding station. When a hanging frame is full, the yarn feeding fixing device needs to reset and release the positioning of the hanging frame. In step (2), after the yarn hanging chain of the fully loaded yarn hanging frame is transported to the warping track, the warping station fixing device fixes several full yarn hanging frames on the warping track at the warping station. When the warping is completed, the warping station fixing device needs to reset and release the positioning of all the hanging frames on the warping track. In step (6), when the empty tube is taken at the empty tube unloading station of the empty tube recovery track, the empty tube unloading fixing device fixes the corresponding empty tube hanging frame at the empty tube unloading station. When the empty tube of a hanging frame is unloaded, the yarn hanging chain drives the hanging frame away from the empty tube unloading fixing device.

[0034] In steps (1) to (6) above, when the yarn hanging chain drives the yarn hanging frame to run on the warping track, yarn waiting track, yarn conveying track, full yarn temporary storage track, full yarn spare track, and empty tube recycling track, the yarn hanging rods of the yarn hanging frame on the yarn hanging chain all remain facing outward.

[0035] Example 2 Reference Figure 7 This embodiment provides an automatic circulating yarn feeding system for a warping machine. The difference between this system and Embodiment 1 is that this embodiment does not include an empty tube recovery track 5 and a corresponding unloading and recovery device 13; instead, empty tubes are manually recovered. In this embodiment, the main conveying track 1 extends towards the end closest to the full yarn storage track 4 and beyond the outermost full yarn storage track 4. The extension end beyond the outermost full yarn storage track 4 must reserve a distance of at least one yarn hanging chain to ensure that the yarn hanging chain has space for reversing its running direction. To improve space utilization, this extension end of the main conveying track 1 can be bent towards the arrangement direction of the full yarn storage track 4.

[0036] The automatic circulating yarn feeding process based on the above-mentioned automatic circulating yarn feeding system of the warping machine is as follows: (1) There are several empty yarn hanging frames on the yarn waiting track. The yarn hanging chain drives each empty yarn hanging frame to be transported from the yarn waiting track to the yarn conveying track. At the yarn feeding station on the side of the yarn conveying track, the yarn is hung on the hanging frame to form a full yarn hanging frame. The yarn hanging chain drives the full yarn hanging frame to be transported from the yarn conveying track to the full yarn temporary storage track. (2) After the yarn hanging racks on the yarn hanging chain are all full of yarn cones, the yarn hanging chain of the full yarn hanging rack is transported from the full yarn temporary storage track to the main conveying track, and then from the main conveying track to the warping track; (3) Repeat steps (1) and (2) above so that both warping tracks of the warping station of the warping machine are equipped with full yarn hanging frames that match the number of yarns required by the warping machine, and the warping machine performs warping action; and while the warping machine is warping, step (1) is repeated and the full yarn hanging frames are temporarily stored in the full yarn temporary storage track or the full yarn spare track. (4) After the warping machine finishes working, the full yarn hanging frame on the warping track becomes an empty tube hanging frame. The hanging chain drives the empty tube hanging frame to the main conveying track, or the empty tube is manually recycled in the warping area. Then the hanging chain drives the empty yarn hanging frame after the empty tube is manually recycled to the main conveying track. Then the hanging chain loaded with full yarn hanging frames is transported from the full yarn temporary storage track or the full yarn spare track to the warping track. (5) The yarn hanging chain continues to drive the empty yarn hanging frame from the main conveying track to the yarn waiting track to wait for yarn to be loaded, or the empty tubes of the empty tube hanging frame on the main conveying track are manually recycled and then transported to the yarn waiting track to wait for yarn to be loaded. Repeat the above steps to achieve automatic cyclic yarn feeding.

[0037] Example 3 Reference Figure 8-10 This embodiment specifically describes the structure of the warping position fixing device 10 mentioned in Embodiment 1. The warping position fixing device 10 is arranged on the ground on the non-yarn hanging side of the yarn hanging frame 9, that is, on the side away from the yarn hanging rod on the yarn hanging frame 9. It specifically includes a multi-station synchronous clamping mechanism and a multi-station synchronous moving mechanism. The multi-station synchronous clamping mechanism is used to synchronously clamp the left and right sides of the bottom end of multiple yarn hanging frames 9 on the warping track 2. The multi-station synchronous moving mechanism is used to drive the multi-station synchronous clamping mechanism to move back and forth to move it closer to or away from the yarn hanging frame.

[0038] Specifically, the aforementioned multi-station synchronous clamping mechanism is arranged in two parallel sets. Each set includes a multi-station clamping mechanism fixing seat 101, a multi-station clamping drive cylinder 102, and a multi-station clamping arm fixing seat 103 connected to the piston rod of the multi-station clamping drive cylinder 102. The multi-station clamping mechanism fixing seat 101 and the multi-station clamping arm fixing seat 103 are arranged parallel to the warping track 2. The multi-station clamping arms 104, the same number as the yarn hanger 9, are arranged above the multi-station clamping arm fixing seat 103 along its length direction and are connected to the yarn hanger. The positions of the rods 9 correspond one-to-one, and the multi-position clamping arms 104 of the two sets of multi-position synchronous clamping mechanisms are respectively located on the left and right sides of the yarn hanger 9 at corresponding positions; moreover, for each set of multi-position synchronous clamping mechanisms, the multi-position clamping drive cylinder 102 is fixedly installed above one end of the multi-position clamping mechanism fixing seat 101, and the multi-position clamping arm fixing seat 103 is slidably installed above the multi-position clamping mechanism fixing seat 101; in addition, the multi-position clamping mechanism fixing seats 101 of the two sets of multi-position synchronous clamping mechanisms are connected as one unit by a connector.

[0039] Specifically, the aforementioned multi-station synchronous moving mechanism includes a multi-station moving drive cylinder 105, a multi-station moving slider 106, and a multi-station moving slide rail 107. The number of multi-station moving drive cylinders 105, multi-station moving sliders 106, and multi-station moving slide rails 107 installed is set according to the length of the multi-station clamping mechanism fixing seat 101. When the length of the multi-station clamping mechanism fixing seat 101 is long, multiple sets can be arranged along its length direction. The aforementioned multi-station moving slider 106 and multi-station moving slide rail 107 are located below the multi-station clamping mechanism fixing seat 101 and are installed perpendicular to the multi-station clamping mechanism fixing seat. The top of the multi-station moving slider 106 is fixedly connected to the bottom of the multi-station clamping mechanism fixing seat 101. The lower middle part of the multi-station moving slider 106 is tumbledly connected to the multi-station moving slide rail 107. The multi-station moving slide rail 107 is fixedly set on the ground. The multi-station moving drive cylinder 105 is located on the outer side of the multi-station synchronous clamping mechanism away from the yarn hanging frame 9, and its piston rod is connected to the multi-station clamping mechanism fixing seat 101 away from the yarn hanging frame 9. The cylinder body of the multi-station moving drive cylinder 105 is fixed to the ground by a fixing frame.

[0040] The working process of the above-mentioned warping position fixing device is as follows: When the yarn hanging chain drives the yarn hanging frame to the warping track and stops running after being positioned by the through-beam photoelectric sensor, the multi-station synchronous moving mechanism first drives the multi-station synchronous clamping mechanism to move to the side closer to the yarn hanging frame. At this time, the clamping arms of the two sets of multi-station synchronous clamping mechanisms are in the open state and are respectively located on the left and right sides of the corresponding yarn hanging frame. Then, the multi-station clamping drive cylinders of the two sets of multi-station synchronous clamping mechanisms drive the corresponding multi-station clamping arm fixing seats to move towards each other, and at the same time drive the corresponding multi-station clamping arms to move towards each other, thereby realizing the synchronous clamping of the yarn hanging frame on the warping track. When the warping machine finishes working and needs to change yarn, the two sets of multi-station synchronous clamping mechanisms drive the corresponding multi-station clamping arms to move away from each other, and release each yarn hanging frame synchronously. Then, the multi-station synchronous moving mechanism drives the multi-station synchronous clamping mechanism to move to the side away from the yarn hanging frame, release the limit on the yarn hanging frame, and then the yarn hanging chain drives the yarn hanging frame to run towards the main conveying track 1.

[0041] Of course, other structures can also be used for the warping position fixing device, as long as they can simultaneously fix the bottom ends of multiple yarn hanging frames.

[0042] Example 4 Reference Figure 11This embodiment specifically describes the structure of the yarn-feeding fixing device 12 mentioned in Embodiment 1. The yarn-feeding fixing device 12 is arranged on the ground on the non-yarn-feeding side of the yarn-feeding frame 9, that is, on the side away from the yarn-feeding rod on the yarn-feeding frame 9. It specifically includes a single-station clamping mechanism and a single-station moving mechanism. The single-station clamping mechanism is arranged along the left and right sides of the yarn-feeding frame 9 and is used to clamp the left and right sides of the bottom end of the single yarn-feeding frame 9 transported to the yarn-feeding station on the yarn-feeding conveying track 6. The single-station moving mechanism is arranged along the front and back sides of the yarn-feeding frame 9 and is used to drive the single-station clamping mechanism to move back and forth to move it closer to or away from the yarn-feeding frame 9.

[0043] Specifically, two sets of single-station clamping mechanisms are arranged in parallel. Each set of single-station clamping mechanisms includes a single-station clamping mechanism fixing seat 121, a single-station clamping drive cylinder 122, a single-station clamping arm fixing seat 123 connected to the piston rod of the single-station clamping drive cylinder 122, and a single-station clamping arm 124 disposed above the single-station clamping arm fixing seat 123 with its clamping end facing the yarn hanger 9. The single-station clamping arms 124 of the two sets of single-station clamping mechanisms are located on the left and right sides of the yarn hanger 9, respectively. For each set of single-station clamping mechanisms, the single-station clamping drive cylinder 122 is fixed above one end of the single-station clamping mechanism fixing seat 121, and the single-station clamping arm fixing seat 123 is slidably disposed above the single-station clamping mechanism fixing seat 121. In addition, the single-station clamping mechanism fixing seats 121 of the two sets of single-station clamping mechanisms are connected as one unit by a connector.

[0044] Specifically, the aforementioned single-station moving mechanism includes a single-station moving drive cylinder 125, a single-station moving slider 126, and a single-station moving slide rail 127. The single-station moving slider 126 and the single-station moving slide rail 127 are disposed below the single-station clamping mechanism fixing seat 121. The top of the single-station moving slider 126 is fixedly connected to the bottom of the single-station clamping mechanism fixing seat 121. The lower middle part of the single-station moving slider 126 is rotatably connected to the single-station moving slide rail 127. The single-station moving slide rail 127 is fixedly disposed on the ground. The single-station moving drive cylinder 125 is disposed on the outer side of the single-station clamping mechanism away from the yarn hanging frame 9, and its piston rod is connected to the single-station clamping mechanism fixing seat 121 away from the yarn hanging frame 9. The cylinder body of the single-station moving drive cylinder 125 is fixed to the ground by a fixing frame.

[0045] The working process of the above-mentioned yarn-fixing device is as follows: When the yarn-hanging chain drives the yarn-hanging frame to the yarn-hanging station on the yarn-hanging conveyor track and stops running, the single-station moving mechanism first drives the single-station clamping mechanism to move towards the side closer to the yarn-hanging frame. At this time, the clamping arms of the two sets of single-station clamping mechanisms are in the open state and are located on the left and right sides of the yarn-hanging frame respectively. Then, the single-station clamping drive cylinders of the two sets of single-station clamping mechanisms drive the corresponding single-station clamping arm fixing seats to move towards each other, and at the same time drive the corresponding single-station clamping arms to move towards each other, thereby clamping the yarn-hanging frame. After the yarn-hanging frame is hung, the two sets of single-station clamping mechanisms drive the corresponding single-station clamping arms to move away from each other, releasing the yarn-hanging frame. Then, the single-station moving mechanism drives the single-station clamping mechanism to move away from the side of the yarn-hanging frame, releasing the limit on the yarn-hanging frame. Then, the yarn-hanging chain drives the yarn-hanging frame to move forward and leave the yarn-hanging station.

[0046] Of course, other structures can be used for the yarn fixing device, as long as they can fix the single yarn hanger.

[0047] In addition, if manual yarn feeding is used at the yarn feeding station, there is no need to fix the yarn hanging frame at that station.

[0048] Example 5 Reference Figure 12 This embodiment specifically describes the structure of the empty pipe fixing device 18 mentioned in Embodiment 1. Specifically, the empty pipe fixing device 18 can be a U-shaped fixing groove arranged along the length of the empty pipe recovery track and opening upwards. The U-shaped fixing groove is fixed to the ground directly below the empty pipe recovery track 5, and the opening width of the U-shaped fixing groove is greater than the width of the bottom end of the hanging yarn frame 9. The bottom end of the hanging yarn frame 9 enters the U-shaped fixing groove to fix it in the front-to-back direction, preventing the hanging yarn frame 9 from moving back and forth when the empty pipe recovery device 13 pushes the empty pipe.

[0049] Of course, other structures can also be used for the unloading tube fixing device, as long as they can fix the single hanging yarn frame.

[0050] Example 6 Reference Figure 13-17 This embodiment specifically describes the structure of the unloading and recovery device 13 mentioned in Embodiment 1.

[0051] The tube unloading and recycling device 13 provided in this embodiment is used to unload and recycle empty tubes on the yarn hanging frame 9 that can run along the empty tube recycling track 5. Specifically, it includes an upper yarn pushing tube mechanism 13-1 and a lower yarn pushing tube mechanism 13-2. The upper yarn pushing tube mechanism 13-1 is located on the upper part of the side of the yarn hanging frame 9 away from the empty tube and is used to push out the empty tubes on the upper part of the yarn hanging frame 9. The lower yarn pushing tube mechanism 13-2 is located on the lower part of the side of the yarn hanging frame 9 away from the empty tube and is used to push out the empty tubes on the lower part of the yarn hanging frame 9. In this embodiment, the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2 are located on the sides of different yarn hanging frames 9, and the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2 are respectively provided with an upper yarn tube recycling basket 15 and a lower yarn tube recycling basket 16 on their pushing sides. There is a gap between the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2 to leave space for the recycling basket. When the yarn hanging frame 9 runs along the track to one side of the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2, the upper empty tube and the lower empty tube on the yarn hanging frame 9 are pushed out respectively. This embodiment is specifically illustrated by taking an example where each yarn hanger 9 has eight empty tubes. The eight empty tubes are divided into two groups: the first to fourth layers are upper empty tubes, and the fifth to eighth layers are lower empty tubes. An upper yarn pushing tube mechanism 13-1 is designed to push out the empty tubes of the first to fourth layers, and a lower yarn pushing tube mechanism 13-2 is designed to push out the empty tubes of the fourth to eighth layers.

[0052] Furthermore, for each empty tube on the yarn rack 9, the upper empty tubes (first to fourth layers) are easily pushed out and retrieved. They can be directly pushed into the upper yarn tube retrieval basket 15 using the upper yarn tube pushing mechanism 13-1 (the height of the upper yarn tube retrieval basket is lower than the bottom of the upper yarn tube pushing mechanism and lower than the bottom of the last layer of empty tubes). However, the lower empty tubes (fifth to eighth layers), especially the last layer, are closer to the ground. Although they can be pushed out using the lower yarn tube pushing mechanism 13-2, they cannot be directly collected using the retrieval basket. Therefore, in this embodiment, a lower yarn tube retrieval mechanism 14 is provided on the pushing side of the lower yarn tube pushing mechanism 13-2 to collect the lower empty tubes.

[0053] Specifically, in this embodiment, both the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2 are installed on the column 17 on one side of the yarn hanging frame 9. Both the upper yarn pushing tube mechanism 13-1 and the lower yarn pushing tube mechanism 13-2 include two vertically arranged yarn tube push rods 131, and the distance between the two yarn tube push rods 131 is greater than the width of the yarn hanging frame 9 and less than the outer diameter of the large end of the empty tube (the large end of the yarn tubes and bobbins on the yarn hanging frame is generally located on the inner side). The side of the yarn tube push rod 131 away from the empty tube is connected to a yarn tube push rod driving cylinder 132, which pushes the yarn tube push rod 131 to move towards or away from the yarn hanging frame 9. The yarn tube push rod 131 is connected to one end of the piston rod of the yarn tube push rod driving cylinder 132, and the cylinder body of the yarn tube push rod driving cylinder 132 is fixed on one side of the column 17.

[0054] To ensure that the yarn tube push rod driving cylinder 132 maintains linear motion when pushing the yarn tube push rod 131 towards or away from the yarn hanger 9, this embodiment also provides two sets of sliding components on the side of the yarn tube push rod 131 away from the empty tube. The two sets of sliding components are located at the upper and lower ends of the yarn tube push rod 131, respectively, and the yarn tube push rod driving cylinder 132 is located between the two sets of sliding components. Each of the above sliding components includes a push rod slider 133 and a push rod slide rail 134. The arrangement direction of the push rod slide rail 134 is parallel to the movement direction of the yarn tube push rod 131. The push rod slide rail 134 is fixed to one side of the column 17, the push rod slider 133 is slidably disposed above the push rod slide rail 134, and the yarn tube push rod 131 is fixed on the push rod slider 133.

[0055] In addition, to ensure that the two yarn tube push rods 131 of the upper and lower yarn tube pushing mechanisms can smoothly pass through the yarn hanging frame 9 and push the empty tube, in each set of upper and lower yarn tube pushing mechanisms, the yarn tube push rods 131 are also connected to the yarn tube push rod drive cylinder 132 and the push rod slider 133 through U-shaped connectors 135 respectively. The open end of the U-shaped connector 135 faces the yarn tube push rod 131, and the opening width of the U-shaped connector 135 is greater than the width of the yarn hanging frame 9. The length of the U-shaped connector 135 needs to ensure that the yarn tube push rod 131 can completely push the empty tube out of the yarn hanging rod of the yarn hanging frame 9. Specifically, the opening width of the U-shaped connector 135 can be set to be equal to the distance between the two yarn tube push rods 131, and the length of the U-shaped connector 135 can be equal to the length of the yarn hanging rod on the yarn hanging frame 9, thereby ensuring that the yarn tube push rod 131 and the U-shaped connector 135 can pass through the left and right sides of the yarn hanging frame 9 and completely push the empty tube out of the yarn hanging rod.

[0056] The process of the upper and lower yarn tube pushing mechanisms pushing the empty tube is as follows: the yarn hanging frame 9 runs along the track to the front of the upper or lower yarn tube pushing mechanism and is fixed. The yarn tube push rod driving cylinder 132 pushes the yarn tube push rod 131 to move towards the yarn hanging frame 9. At this time, the yarn tube push rod 131 and the U-shaped connector 135 pass through the left and right sides of the yarn hanging frame 9, and the yarn tube push rod 131 contacts the empty tube and gradually pushes the empty tube out of the yarn hanging rod. After the empty tube is pushed out, the yarn tube push rod driving cylinder 132 drives the yarn tube push rod 131 to move in the opposite direction and reset.

[0057] Specifically, in this embodiment, the lower yarn tube recycling mechanism 14 includes a ramp conveyor line 141, a lower yarn tube guide basket 142 with openings at the top and bottom, and a bottom yarn tube guide plate 143 located below the lower yarn tube guide basket 142. The lower yarn tube recycling basket 16 is located on the side of the high-end output port of the ramp conveyor line 141. The lower yarn tube guide basket 142 is used to receive the empty tubes (fifth to seventh layers) at the bottom of the hanging frame 9 pushed out by the lower yarn tube pushing mechanism 13-2, except for the bottom layer. The bottom yarn tube guide plate 143 is used to receive the bottommost empty tube (eighth layer) pushed out by the lower yarn tube pushing mechanism 13-2. The empty tubes received by the lower yarn tube guide basket 142 and the bottom yarn tube guide plate 143 fall to the lower end of the ramp conveyor line 141. The ramp conveyor line 141 transports the empty tubes from its lower end to its upper end and they fall into the lower yarn tube recycling basket 16 for recycling.

[0058] The aforementioned inclined conveyor line 141 has a low-end horizontal section and an inclined section. Specifically, the inclined conveyor line 141 includes an inclined conveyor frame 1411, an inclined conveyor belt 1412 mounted on the inclined conveyor frame 1411, and a conveyor belt drive motor 1413 that drives the inclined conveyor belt 1412. The conveyor belt drive motor 1413 drives the inclined conveyor belt 1412 through cooperating main and driven shafts and main and driven wheels. Furthermore, several yarn tube conveying baffles 1414 are arranged along the length of the inclined conveyor belt 1412. It should be noted that the structural connections of the inclined conveyor line 141 in this embodiment can be achieved using existing technology, and will not be elaborated further in this embodiment.

[0059] The aforementioned lower yarn tube guide basket 142 is positioned above the lower end of the inclined conveyor line 141. The lower yarn tube guide basket 142 has a guide basket side opening 1421 on the side near the yarn hanging frame 9, which cooperates with the lower yarn pushing tube mechanism 13-2. The guide basket side opening 1421 is located on the side of the lower yarn tube guide basket 142 near the starting position of the lower end of the inclined conveyor line 141. In addition, the lower yarn tube guide basket 142 has a guide basket bottom opening 1422 on the side away from the yarn hanging frame 9. The guide basket bottom opening 1422 is located above the lower end of the inclined conveyor line 141. The side of the lower yarn tube guide basket 142 near the yarn hanging frame 9 is inclined downward towards the bottom opening. The bottom of the inclined downward portion of the lower yarn tube guide basket 142 is provided with a guide basket inclined bottom plate 1423. The lower yarn pushing tube mechanism 13-2 can push out the empty tubes at the bottom of the yarn hanging frame 9 and allow the other empty tubes (the fifth to seventh layers) except the bottom layer to enter the lower yarn tube guide basket 142 through the guide basket side opening 1421, and then slide down through the guide basket inclined bottom plate 1423 to the inclined conveyor belt 1412 of the inclined conveyor line 141.

[0060] The bottom yarn tube guide plate 143 is set on the side of the inclined conveyor frame 1411 at the lower end of the inclined conveyor line 141, close to the yarn hanging frame 9. The bottom yarn tube guide plate 143 is located directly below the guide basket side opening 1421 of the lower yarn tube guide basket 142. The installation height of the bottom yarn tube guide plate 143 is lower than the height of the empty tube at the bottom of the yarn hanging frame 9. The lower yarn tube pushing mechanism 13-2 can push out the empty tubes at the bottom of the yarn hanger 9 and push the bottommost empty tubes onto the bottom yarn tube guide plate 143. The bottom yarn tube guide plate 143 has a bottom yarn tube baffle 1431 on the side near the high end of the inclined conveyor line 141, and an L-shaped bottom yarn tube lever 1432 is provided on the other side. The horizontal bar of the bottom yarn tube lever 1432 is located on the side of the bottom yarn tube guide plate 143 near the yarn hanger 9. The vertical bar of the bottom yarn tube lever 1432 is connected to the piston rod end of the lever drive cylinder 1433. The lever drive cylinder 1433 is located on the inclined conveyor frame 1411 at the low end of the inclined conveyor line 141 near the vertical bar of the bottom yarn tube lever 1432. The aforementioned lever-driven cylinder 1433 drives the bottom yarn tube lever 1432 to move towards the inclined conveyor line 141 and pushes the empty yarn tube 2 held on the bottom yarn tube guide plate 143 above the inclined conveyor belt 1412 of the inclined conveyor line 141.

[0061] In this embodiment, through the aforementioned lower yarn tube pushing mechanism 13-2 and the corresponding lower yarn tube recycling mechanism 14, the lower yarn tube pushing mechanism 13-2 can push out the empty tubes at the bottom of the yarn hanging frame 9, and the empty tubes (the fifth to seventh layers) except for the bottom layer fall into the lower yarn tube guide basket 142. The empty tubes at the bottom layer (the eighth layer) fall onto the bottom yarn tube guide plate 143. Then, the empty tubes received by the lower yarn tube guide basket 142 and the bottom yarn tube guide plate 143 fall to the lower end of the inclined conveyor line 141. The inclined conveyor line 141 transports the empty tubes from its lower end to its upper end and they fall into the lower yarn tube recycling basket 16 for recycling.

[0062] Of course, the tube unloading and recycling device can also adopt other structures, as long as it can automatically unload and recycle the empty tubes on the yarn hanging frame.

[0063] It should be noted that any parts not mentioned in this invention can be achieved by using or referencing existing technologies.

[0064] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic yarn feeding system for warping machines, used for automatically feeding yarn onto at least one warping machine, characterized in that, It includes a main conveyor track arranged longitudinally and a warping track, a yarn loading waiting track, and a full yarn storage track arranged transversely on one side of the main conveyor track; there are 2n warping tracks, with each pair of warping tracks corresponding to one warping machine; the yarn loading waiting track is located on the outer side of one of the outermost warping tracks; the full yarn storage track is located on the side of the yarn loading waiting track away from the warping track; one end of each of the warping track, the yarn loading waiting track, and the full yarn storage track is connected to the main conveyor track via a track divider; the end of the yarn loading waiting track away from the main conveyor track is connected to the end of the full yarn storage track away from the main conveyor track via the yarn loading conveyor track. The system also includes a yarn hanging chain for installing the yarn hanging frame. Several yarn hanging chains are provided. The yarn hanging chains are rotatably connected to the main conveying track, warping track, yarn loading waiting track, yarn loading conveying track, full yarn temporary storage track, and empty tube recovery track, and can drive the yarn hanging frame to circulate along each track.

2. The automatic circulating yarn feeding system for a warping machine according to claim 1, characterized in that, Each warping track has at least one full-yarn spare track on one side, and the full-yarn spare track is connected to the main conveying track through a track splitter.

3. The automatic circulating yarn feeding system for a warping machine according to claim 1, characterized in that, At least one empty tube recovery track is provided on the side of the full yarn temporary storage track away from the yarn loading waiting track. The empty tube recovery track is connected to the main conveying track through a track splitter.

4. The automatic circulating yarn feeding system for a warping machine according to claim 1, characterized in that, The main conveying track extends away from the end of the full yarn storage track and beyond the outermost warping track.

5. The automatic circulating yarn feeding system for a warping machine according to claim 1, characterized in that, When there is at least one yarn feeding waiting track, and two or more yarn feeding waiting tracks are provided, the multiple yarn feeding waiting tracks are arranged in parallel, and the two ends of each yarn feeding waiting track are respectively connected to the main conveying track and the yarn feeding conveying track. When there is at least one full yarn storage track, and two or more full yarn storage tracks are provided, the multiple full yarn storage tracks are arranged in parallel, and the two ends of each full yarn storage track are respectively connected to the main conveying track and the yarn feeding conveying track.

6. The automatic circulating yarn feeding system for a warping machine according to claim 1, characterized in that, The yarn feeding track is equipped with a yarn feeding device on the side near the warping track, which is used to hang the yarn cones on the yarn hanging frame.

7. The automatic circulating yarn feeding system for a warping machine according to claim 3, characterized in that, One side of the empty tube recovery track is equipped with a tube unloading and recovery device for removing and recovering empty tubes from the yarn hanger.

8. The automatic circulating yarn feeding system for a warping machine according to claim 3, characterized in that, Each warping track is provided with a warping position fixing device on one side, which is used to synchronously fix the bottom ends of several yarn hangers on the corresponding warping track when the warping machine is working. A yarn-fixing device is provided on one side of the yarn-feeding conveyor track and is used to fix the bottom end of the single yarn-hanging frame to be fed when the yarn-feeding device is hanging yarn. A tube unloading fixing device is installed directly below the tube recovery track and is used to fix the bottom end of the single hanging yarn frame of the tube to be unloaded when the tube unloading and recovery device takes out the tube.

9. An automatic circulating yarn feeding method for a warping machine, implemented using the automatic circulating yarn feeding system for a warping machine as described in any one of claims 2-8, characterized in that, Including the following steps: (1) There are several empty yarn hanging frames on the yarn waiting track. The yarn hanging chain drives each empty yarn hanging frame to be transported from the yarn waiting track to the yarn conveying track. At the yarn feeding station on the side of the yarn conveying track, the yarn is hung on the hanging frame to form a full yarn hanging frame. The yarn hanging chain drives the full yarn hanging frame to be transported from the yarn conveying track to the full yarn temporary storage track. (2) After the yarn hanging racks on the yarn hanging chain are all full of yarn cones, the yarn hanging chain of the full yarn hanging rack is transported from the full yarn temporary storage track to the main conveying track, and then from the main conveying track to the warping track; (3) Repeat steps (1) and (2) above so that both warping tracks of the warping station of the warping machine are equipped with full yarn hanging frames that match the number of yarns required by the warping machine, and the warping machine performs warping action; and while the warping machine is warping, step (1) is repeated and the full yarn hanging frames are temporarily stored in the full yarn temporary storage track or the full yarn spare track. (4) After the warping machine finishes working, the full yarn hanging frame on the warping track becomes an empty tube hanging frame. The hanging chain drives the empty tube hanging frame to the main conveying track or the hanging chain drives the empty yarn hanging frame after manual recycling to the main conveying track. Then the hanging chain fully loaded with full yarn hanging frames is transported from the full yarn temporary storage track or the full yarn spare track to the warping track. (5) The yarn hanging chain continues to drive the empty yarn hanging frame from the main conveying track to the yarn waiting track to wait for yarn to be loaded, or the empty tube hanging frame on the main conveying track is manually recycled and then transported to the yarn waiting track to wait for yarn to be loaded, or the yarn hanging chain drives the empty tube hanging frame to the empty tube recycling track for automatic tube unloading and recycling and then transported to the yarn waiting track to wait for yarn to be loaded. Repeat the above steps to achieve automatic cyclic yarn feeding.

10. The automatic circulating yarn feeding method for a warping machine according to claim 9, characterized in that, In step (1), when the yarn is hung at the yarn feeding station on the side of the yarn feeding track, the empty yarn hanging frame is fixed at the yarn feeding station. In step (2), after the yarn hanging chain of the fully loaded yarn hanging frame is transported to the warping track, the fully loaded yarn hanging frame is fixed at the warping station. In step (6), when the empty pipe is taken out at the empty pipe unloading station of the empty pipe recycling track, the empty pipe hanging frame is fixed at the empty pipe unloading station.

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