Yarn breaking and separating device and method for rapier loom

By introducing clamping and docking aids into the rapier loom, and using hydraulic control to control the figure-eight unfolding and arc movement of the clamps, the problems of yarn misalignment and inaccurate docking were solved, achieving precise yarn clamping and automatic docking, thus improving weaving quality and efficiency.

CN120945561APending Publication Date: 2025-11-14CHANGSHU INSTITUTE OF TECHNOLOGY
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Patent Information

Application Number
CN202511351374.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

The yarn-separating structure of traditional rapier looms lacks an effective yarn guiding and limiting mechanism, which makes the yarn prone to deviation, tangling and disordered arrangement, inconsistent yarn breakage locations, and the failure of yarn splicing after a breakage due to manual or simple mechanical pushing, thus affecting weaving quality and efficiency.

Method used

Employing clamping and docking aids, including hydraulically driven clamps and ramp structures, the clamps are hydraulically controlled to unfold in a figure-eight shape and move in an arc, achieving precise clamping and automatic docking of yarns.

Benefits of technology

It improves the accuracy of yarn splicing and the efficiency of automatic docking, reduces the intensity of manual operation, enhances the equipment's adaptability to fluctuations in operating conditions, and ensures that the yarn enters the take-up roller groove stably.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a yarn breaking and separating device and method for a rapier loom, and relates to the technical field of loom equipment.The yarn breaking and separating device comprises a winding frame and the rapier loom arranged on one side of the winding frame, a winding roller is installed on the inner side of the winding frame, and articles woven by spinning threads are wound to the winding roller through the rapier loom; the wire separating roller is arranged on the inner side of the winding frame, a plurality of inwards-sunken wire separating grooves are formed in the outer side of the wire separating roller, and the multiple wire separating grooves are distributed in the outer side of the wire separating roller at equal intervals. Through cooperation of parts such as the clamping pieces and the like, every two clamping pieces are in a splayed unfolding state, so that when a spinning thread deviates from the thread separating groove in the outer side of the thread separating roller, alignment operation can be conducted in the direction of the thread separating groove under the guiding effect of the slope in the splayed state, the thread separating precision is improved, and the spinning quality is improved. Therefore, the subsequent automatic docking efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of loom equipment technology, specifically a yarn breaking and separating device and method for rapier looms. Background Technology

[0002] In the development of modern textile industry, various forms of shuttleless looms have emerged, including rapier looms, projectile looms, air-jet looms, water-jet looms, multiphase looms, and magnetic weft insertion looms. Compared with shuttle looms, shuttleless looms produce fabrics with unparalleled advantages in terms of output, quality, and variety. They have replaced shuttle looms in most weaving fields, and this pace is accelerating, expanding from the textile industries of developed countries to developing countries. From the perspective of international shuttleless loom technology development and the needs of the textile industry, air-jet looms have made rapid progress in terms of high speed, wide width, and serialization. In addition to their widespread application in the cotton textile industry, they are increasingly used in yarn-dyed and jacquard fabrics. Rapier looms, on the other hand, have advantages in terms of adaptability to different fabric types, variety of fabric colors and patterns, and a wider range of suitable fabrics. These two types of looms have become the two most widely used types of looms in the textile industry.

[0003] Currently, rapier looms typically consist of a lead-in device, shedding mechanism, weft insertion mechanism, beat-up mechanism, take-up mechanism, warp feed mechanism, transmission mechanism, weft supply mechanism, and take-up mechanism. In operation, the warp feed mechanism feeds out a certain number of warp yarns according to the required length and width for weaving, and gives the warp yarns a certain tension. According to the fabric structure, the shedding mechanism separates the warp yarns into the shed to form a shed. The weft insertion mechanism introduces the weft yarns into the shed. The beat-up mechanism pushes the weft yarns introduced into the shed towards the weft end to form the fabric. Then, the take-up mechanism leads the woven fabric away from the fabric forming area and winds it into a certain package. Finally, the woven fabric is cut off.

[0004] According to the patent application published on the China Patent Network, under the number "CN 115367524 A", entitled "A Yarn Breaking and Separating Device for a Rapier Loom", the device includes a frame and a loom body fixedly mounted on the frame. The loom body has an inlet end and an outlet end. A winding mechanism for winding up the fabric is located on the frame, on one side of the outlet end of the loom body. A lifting platform is slidably mounted vertically between the winding mechanism and the loom body on the frame. A first driving component is provided on the frame to drive the lifting platform up and down. A yarn separating shaft is provided on the lifting platform, with multiple yarn separating grooves for inserting warp yarns, each groove corresponding to a warp yarn. A fixing component for fixing the warp yarns is provided on the yarn separating shaft. A cutting component for cutting the warp yarns is located on the frame, between the yarn separating shaft and the winding mechanism. This application has the effect of reducing the labor intensity of workers.

[0005] While the aforementioned patent can automatically fix the warp yarns and automatically snap them onto the take-up roller, it still has the following problems: Traditional yarn separation structures lack effective yarn guiding and limiting mechanisms. Multiple textile yarns are prone to shifting due to tension fluctuations or equipment vibrations, causing the yarn separation groove to fail to accurately engage the yarns, which in turn leads to yarn tangling and disordered arrangement, affecting weaving quality. If the yarn is not stably inserted into the yarn divider before it breaks, the broken yarn position will be skewed or inconsistent, increasing the difficulty of subsequent splicing. At the same time, the lack of an auxiliary clamping structure may cause the yarn to slip when it breaks, further aggravating the yarn breaking accuracy problem. When replacing the take-up roller after a yarn breakage, the alignment of the textile thread with the groove of the new take-up roller relies on manual visual inspection or simple mechanical pushing, which can easily lead to docking failure due to slight positional misalignment; and the yarn is easily damaged by rigid force during the pushing process, or the machine may stop due to untimely adjustment. Therefore, we provide a yarn breakage separating device and method for rapier looms to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of this invention is to solve the problems that the yarn cannot be accurately inserted into the yarn-separating groove on the yarn-separating roller and that the alignment of the yarn with the groove of the new take-up roller relies on manual visual inspection or simple mechanical pushing, which is prone to failure due to slight positional misalignment. This invention provides a yarn-separating device and method for rapier looms.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a yarn breakage separating device for a rapier loom, comprising: a take-up frame and a rapier loom disposed on one side of the take-up frame, wherein a take-up roller is installed on the inner side of the take-up frame, and the rapier loom takes the woven yarn into the take-up roller; a yarn separating roller disposed on the inner side of the take-up frame, wherein a plurality of inwardly recessed yarn separating grooves are provided on the outer side of the yarn separating roller, and the plurality of yarn separating grooves are evenly distributed on the outer side of the yarn separating roller, and the yarn separating grooves are used to clamp the yarn; a clamping auxiliary device located on the inner side of each yarn separating groove, used to assist the yarn in clamping and docking operations, the clamping auxiliary device including a connecting seat fixedly connected to the inner side of each yarn separating groove, wherein two sets of clamping plates are disposed above the connecting seat, and each set of clamping plates has two clamping plates; and a docking auxiliary device located between the clamping plates and the connecting seat, used to assist the yarn in docking with the take-up roller.

[0008] As a further embodiment of the present invention: the clamping auxiliary device includes a support frame disposed below the dividing roller, a first hydraulic cylinder is installed inside the support frame, the output end of the first hydraulic cylinder extends through to the top of the support frame and is fixedly connected to a U-shaped frame, and the dividing roller is fixedly connected to the inner side of the U-shaped frame.

[0009] As a further embodiment of the present invention: the clamping aid further includes two lifting seats disposed inside the connecting seat, one of the lifting seats having an inwardly recessed cutting groove at its top, the two lifting seats being respectively located below a set of clamping plates, and each pair of clamping plates being rotatably connected to the inner side of the lifting seat, a spur gear being fixedly connected to the bottom of each clamping plate, a rack meshing with one side of the spur gear, a sealing post being disposed below the rack, and the sealing post being fixedly connected to the lifting seat via a suspension rod, a piston rod being installed inside the sealing post, and a push rod being fixedly connected to one end of the piston rod extending through to the top of the sealing post, a piston spring being installed between the piston rod and the sealing post, and the push rod being fixedly connected to the two racks, an oil supply assembly being disposed between the U-shaped frame and the sealing post, and a correction aid assembly being disposed between the bottom of the sealing post and the textile thread.

[0010] As a further embodiment of the present invention: the oil supply assembly includes a connecting plate fixedly connected to one side of the U-shaped frame, an oil supply pipe fixedly connected to the inner side of the connecting plate, a branch pipe fixedly connected to the oil outlet of the oil supply pipe, corrugated hoses fixedly connected to the oil outlets on both sides of the branch pipe, and one end of the corrugated hose is installed at the oil inlet of the sealing column.

[0011] As a further embodiment of the present invention: the correction auxiliary component includes an auxiliary frame disposed inside the textile thread, a slide rod slidably connected to the inner side of the auxiliary frame, both ends of the slide rod extending to the outside of the auxiliary frame, a ring fixedly connected to one end of the slide rod, and an auxiliary spring installed between the ring and the auxiliary frame, the slide rod being fixedly connected to the bottom of the sealing column, and a slope provided on the back of the clamping piece.

[0012] As a further embodiment of the present invention: the docking aid includes two linear modules installed inside the winding frame, and the support frame is installed at the execution end of the linear module. A traction plate is provided below each textile thread, and two traction plates are fixedly connected by a connecting rod. Two first auxiliary seats are fixedly connected to one side of one textile thread. A second hydraulic cylinder is installed on the top of each first auxiliary seat. The output end of the second hydraulic cylinder passes through to the bottom of the first auxiliary seat and is fixedly connected to a second auxiliary seat. The second auxiliary seat is fixedly connected to the traction plate. Two rectangular rods are fixedly connected to the top of each traction plate. A rectangular sleeve is slidably connected to the outer wall of each rectangular rod. A second power spring is installed between the rectangular rod and the rectangular sleeve. One end of the rectangular sleeve passes through to the inner side of the connecting seat and is fixedly connected to an adjusting seat. The adjusting seat is located at the bottom of the auxiliary frame. A horizontal push auxiliary component is provided between the adjusting seat and the auxiliary frame.

[0013] As a further embodiment of the present invention: the lateral push auxiliary component includes a T-shaped block fixedly connected to the bottom of the auxiliary frame, the inner side of the adjustment seat is provided with a T-shaped groove that matches the T-shaped block, and a first power spring is installed between the T-shaped block and the T-shaped groove.

[0014] As a further embodiment of the present invention: the transverse push auxiliary assembly further includes a spherical rod fixedly connected to the end of the auxiliary frame, power rods are fixedly connected to both sides of the traction plate, and the top of the power rod is provided with an inclined surface, the top of the adjusting seat is provided with a through groove penetrating the connecting seat, and the diameter of the through groove is larger than the power rod, and a pressure roller is rotatably connected to the inner side of the clamping plate.

[0015] This invention also discloses a method for separating broken yarns on a rapier loom, which employs the aforementioned device for separating broken yarns on a rapier loom and includes the following steps: S1. After the workpiece is wound on the take-up roller, the first hydraulic cylinder can be started first. The output end of the first hydraulic cylinder drives the dividing roller to move upward, so that the textile thread that needs to be cut is stuck in the dividing groove on the outside of the dividing roller, and then the cutting operation is performed by the existing cutting equipment. S2. During the upward movement of the U-shaped frame, since every two slopes are spread out in a figure-eight shape, when the textile thread deviates from the dividing groove outside the dividing roller, it can be aligned with the dividing groove under the guidance of the slope in the figure-eight shape. S3. The oil supply pipe is connected to an external hydraulic oil delivery pump through a pipeline. When the textile thread needs to be cut, the hydraulic oil can be sent into the inside of the oil supply pipe by the action of the external delivery pump and introduced into the inside of the sealing column through the branch pipe. The piston rod is pushed to drive the first auxiliary seat to move upward, thereby driving the spur gear to drive the clamping plate to press towards the textile thread, so that the cutting operation can be performed by aligning the cutting groove with the existing cutting equipment. S4. When the textile thread is cut and the take-up roller needs to be rewound when it is replaced, the outer side of the take-up roller is provided with a groove for engaging the textile thread. When the cut textile thread needs to be engaged into the groove on the outer side of the take-up roller, the linear module can drive the splitting roller to pull the cut textile thread to the bottom of the take-up roller. At this time, the textile thread between the two sets of clamps is located below the take-up roller. Then, the second hydraulic cylinder is activated, so that the output end of the second hydraulic cylinder drives the lifting seat to pull the textile thread upward, thereby engaging the textile thread into the groove on the outer side of the take-up roller, so that the cut textile thread can be automatically connected to the outside of the take-up roller. S5. When the output end of the second hydraulic cylinder drives the lifting seat to pull the textile thread upward, it also drives the closed clamping plate to move upward. When the textile thread is not aligned with the outer groove of the take-up roller, a slight offset occurs. At this time, the slope on the back of the clamping plate will first contact the inner wall of the groove of the outer groove of the take-up roller. At the same time, under the drive of the second hydraulic cylinder, the clamping plate can drive the textile thread to adjust its lateral position, thereby allowing the slide bar to move laterally. S6. When the two clamping plates are closed, the pressure roller abuts against the side of the textile thread. When the clamping plates move upward and abut against the groove on the outside of the take-up roller, the output end of the second hydraulic cylinder drives the traction plate to continue moving upward, thereby squeezing the second power spring through the rectangular rod. At the same time, the power rod moves upward and contacts the ball rod, pushing the ball rod to drive the two clamping plates that are pressed together to move away from the take-up roller through the suspension rod, thereby forming a rolling motion through the pressure roller. This allows the clamping plates to move laterally under the action of the power rod and the ball rod. At the same time, under the reset action of the second power spring, the clamping plates can move upward again, thereby forming an oblique upward movement of the clamping plates. This allows the inner pressed textile thread to be inserted into the groove on the outside of the take-up roller in an arc shape. When the clamping plates move out of the groove on the outside of the take-up roller, the pressure rollers on the inner sides of the two clamping plates separate from the textile thread, thereby automatically inserting the textile thread into the groove on the outside of the take-up roller to form an automatic connection.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By coordinating components such as the second power spring, the clamping plate moves obliquely upward to form an arc-shaped guide trajectory. This allows the inner pressed textile thread to be "wrapped" into the groove of the take-up roller in a way that conforms to the curvature of the groove. This avoids thread offset or jamming caused by straight pushing, ensuring that the textile thread falls accurately into the groove. This solves the problem of "misalignment and failure to clamp" during the docking process. The contact and pushing of the power rod and the ball rod, along with the reset action of the second power spring, form a composite action of "lateral fine adjustment + longitudinal lifting" for the clamping plate. This allows the clamping plate to adaptively adjust according to the actual position of the take-up roller groove (even if there are minor installation errors or positional deviations). Docking can be completed without precise calibration, improving the equipment's adaptability to fluctuations in operating conditions. When the clamping plate moves out of the take-up roller groove, the pressure roller and the textile thread automatically separate. This avoids secondary interference to the textile thread already clamped in the groove when the clamping plate exits, and allows the textile thread to remain stably in the groove under its own tension or the rotation trend of the take-up roller. This completes the fully automatic docking process of "thread feeding-clamping-separation" without manual assistance, reducing the intensity of manual operation. 2. By setting up the cooperation of parts such as clamps, each pair of clamps is spread out in a figure-eight shape. This allows the textile thread to be aligned with the dividing groove on the outside of the dividing roller when it deviates from the dividing groove. This is guided by the figure-eight-shaped slope, thereby improving the accuracy of the dividing process and thus improving the efficiency of subsequent automatic docking. 3. By setting up components such as ramps, when the output end of the second hydraulic cylinder drives the lifting seat to pull the textile thread upward, it also drives the closed clamping plate upward. When the textile thread is not aligned with the outer groove of the take-up roller and a slight offset occurs, the ramp on the back of the clamping plate will first contact the inner wall of the groove on the outer side of the take-up roller. At the same time, driven by the second hydraulic cylinder, the clamping plate can drive the textile thread to adjust its lateral position, thereby causing the slide bar to move laterally. This improves the accuracy of the engagement between the textile thread and the take-up roller, eliminating the need for manual operation and thus improving the efficiency of the engagement between the textile thread and the take-up roller. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the winding rack structure of the present invention; Figure 3 This is a schematic diagram of the splitting roller structure of the present invention; Figure 4 This is a schematic diagram of the inner structure of the connector of the present invention; Figure 5 This is a side view of the connector of the present invention; Figure 6 This is a schematic diagram of the adjusting seat structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the clip structure of the present invention; Figure 9 This is a cross-sectional view of the rectangular sleeve of the present invention; Figure 10 This is a diagram showing the clamping and abutting state of the receiving roller according to the present invention; Figure 11 This is a schematic diagram of the textile thread snap-fit ​​of the present invention.

[0018] In the diagram: 1. Take-up frame; 2. Take-up roller; 3. Rapier loom; 4. Straight module; 5. Dividing roller; 6. Support frame; 7. First hydraulic cylinder; 8. U-shaped frame; 9. Connecting plate; 10. Oil supply pipe; 11. Dividing groove; 12. Textile thread; 13. Connecting seat; 14. Branch pipe; 15. Clamping plate; 16. Traction plate; 17. Connecting rod; 18. First auxiliary seat; 19. Second hydraulic cylinder; 20. Corrugated hose; 21. Second auxiliary seat; 22. Lifting seat; 3. Inclined ramp; 24. Adjusting seat; 25. Auxiliary frame; 26. Sealing column; 27. Push rod; 28. Straight rack; 29. ​​Spur gear; 30. Pressure roller; 31. Cutting groove; 32. Rectangular sleeve; 33. Rectangular rod; 34. Power rod; 35. Suspension rod; 36. Piston rod; 37. Piston spring; 38. T-block; 39. First power spring; 40. Ball rod; 41. Slide rod; 42. Ring; 43. Auxiliary spring; 44. Second power spring. Detailed Implementation

[0019] 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 only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0021] Please see Figures 1 to 11This embodiment provides a yarn breaking and separating device for a rapier loom, including: a take-up frame 1 and a rapier loom 3 disposed on one side of the take-up frame 1. A take-up roller 2 is installed on the inner side of the take-up frame 1. The rapier loom 3 takes the textile yarn 12 woven into the take-up roller 2. A yarn separating roller 5 is disposed on the inner side of the take-up frame 1. A plurality of inwardly recessed yarn separating grooves 11 are opened on the outer side of the yarn separating roller 5. The plurality of yarn separating grooves 11 are evenly distributed on the outer side of the yarn separating roller 5. The textile yarn 12 is clamped by the yarn separating grooves 11. After the workpiece is wound on the take-up roller 2, the first hydraulic cylinder 7 can be started first. The output end of the first hydraulic cylinder 7 drives the dividing roller 5 to move upward, so that the textile thread 12 that needs to be cut is stuck in the dividing groove 11 on the outside of the dividing roller 5. Then, the cutting operation is carried out by the existing cutting equipment (since the cutting operation is existing technology, it is not described in detail in this solution).

[0022] Please see Figures 3 to 11 The clamping aid, located inside each yarn divider 11, assists in the snapping and splicing of the textile yarns 12. The clamping aid includes a connecting seat 13 fixedly connected to the inside of each yarn divider 11. Two sets of clamping plates 15 are arranged above the connecting seat 13, with two clamping plates in each set. The clamping aid also includes a support frame 6 located below the yarn divider roller 5. A first hydraulic cylinder 7 is installed inside the support frame 6. The output end of the first hydraulic cylinder 7 extends through to the top of the support frame 6 and is fixedly connected to a U-shaped frame 8. The yarn divider roller 5 is fixedly connected to the inside of the U-shaped frame 8. The clamping aid also includes two lifting seats 22 located inside the connecting seat 13. One lifting seat 22 has an inwardly recessed cutting groove 31 at its top. The two lifting seats 22 are located below each set of clamping plates 15, and each pair of clamping plates 15 is rotatably connected to the inside of the lifting seat 22. A spur gear is fixedly connected to the bottom of each clamping plate 15. 29. A spur gear 29 meshes with a spur rack 28 on one side. A sealing column 26 is provided below the spur rack 28, and the sealing column 26 is fixedly connected to the lifting seat 22 via a suspension rod 35. A piston rod 36 is installed on the inner side of the sealing column 26, and one end of the piston rod 36 extends through to the top of the sealing column 26 and is fixedly connected to a push rod 27. A piston spring 37 is installed between the piston rod 36 and the sealing column 26, and the push rod 27 is fixedly connected to the two spur racks 28. An oil supply assembly is provided between the U-shaped frame 8 and the sealing column 26. A correction auxiliary assembly is provided between the bottom of the sealing column 26 and the textile thread 12. The oil supply assembly includes a connecting plate 9 fixedly connected to one side of the U-shaped frame 8. An oil supply pipe 10 is fixedly connected to the inner side of the connecting plate 9. A branch pipe 14 is fixedly connected to the oil outlet of the oil supply pipe 10. Corrugated hoses 20 are fixedly connected to the oil outlets on both sides of the branch pipe 14, and one end of the corrugated hose 20 is installed at the oil inlet of the sealing column 26. As the U-shaped frame 8 moves upward, since each pair of clamping pieces 15 unfolds in a figure-eight shape, when the textile thread 12 deviates from the dividing groove 11 outside the dividing roller 5, it can be aligned with the dividing groove 11 under the guidance of the figure-eight-shaped ramp 23, thereby improving the accuracy of the dividing and thus improving the efficiency of subsequent automatic docking. The oil supply pipe 10 is connected to an external hydraulic oil delivery pump via a pipeline. When the textile thread 12 needs to be cut, the hydraulic oil can be sent into the inside of the oil supply pipe 10 by the action of the external delivery pump and introduced into the inside of the sealing column 26 through the branch pipe 14. This pushes the piston rod 36 to drive the first auxiliary seat 18 to move upward, thereby driving the spur gear 29 to drive the clamping plate 15 to press towards the textile thread 12, so that it can be cut by aligning with the cutting groove 31 position using the existing cutting equipment.

[0023] Please see Figures 3 to 11The web guiding auxiliary assembly includes an auxiliary frame 25 disposed inside the textile thread 12. A slide rod 41 is slidably connected to the inner side of the auxiliary frame 25, with both ends of the slide rod 41 extending to the outside of the auxiliary frame 25. A ring 42 is fixedly connected to one end of the slide rod 41, and an auxiliary spring 43 is installed between the ring 42 and the auxiliary frame 25. The slide rod 41 is fixedly connected to the bottom of the sealing post 26. A ramp 23 is provided on the back of the clamp 15. A docking auxiliary device is located between the clamp 15 and the connecting seat 13 to assist in docking the textile thread 12 with the take-up roller 2. The docking aid includes two linear modules 4 installed inside the winding frame 1, and a support frame 6 installed at the execution end of the linear module 4. A traction plate 16 is provided below each textile thread 12, and two traction plates 16 are fixedly connected by a connecting rod 17. Two first auxiliary seats 18 are fixedly connected to one side of one textile thread 12. A second hydraulic cylinder 19 is installed on the top of each first auxiliary seat 18. The output end of the second hydraulic cylinder 19 extends through to the bottom of the first auxiliary seat 18 and is fixedly connected to a second auxiliary seat 21, which is fixedly connected to the traction plate 16. Two rectangular rods 33 are fixedly connected to the top of each traction plate 16. A rectangular sleeve 32 is slidably connected to the outer wall of each rectangular rod 33. A second power spring 44 is installed between the rectangular rod 33 and the rectangular sleeve 32. One end of the rectangular sleeve 32 extends through to the inner side of the connecting seat 13 and is fixedly connected to an adjusting seat 24. The adjusting seat 24 is located at the bottom of the auxiliary frame 25. A horizontal push auxiliary assembly is provided between the adjusting seat 24 and the auxiliary frame 25. The horizontal push auxiliary assembly includes components fixedly connected to... The T-shaped block 38 at the bottom of the auxiliary frame 25 has a T-shaped groove on the inner side of the adjusting seat 24 that matches the T-shaped block 38. A first power spring 39 is installed between the T-shaped block 38 and the T-shaped groove. The horizontal push auxiliary assembly also includes a ball rod 40 fixedly connected to the end of the auxiliary frame 25. Power rods 34 are fixedly connected to both sides of the traction plate 16, and the top of the power rods 34 is provided with an inclined surface. The top of the adjusting seat 24 is provided with a through groove that passes through the connecting seat 13, and the diameter of the through groove is larger than that of the power rods 34. A pressure roller 30 is rotatably connected to the inner side of the clamping plate 15. When the textile thread 12 is cut and the take-up roller 2 needs to be rewound, the outer side of the take-up roller 2 has a groove for engaging the textile thread 12. When the cut textile thread 12 needs to be engaged into the groove on the outer side of the take-up roller 2, the linear module 4 can drive the split roller 5 to pull the cut textile thread 12 to the bottom of the take-up roller 2. At this time, the textile thread 12 between the two sets of clamping plates 15 is located below the take-up roller 2. Then, the second hydraulic cylinder 19 is activated, so that the output end of the second hydraulic cylinder 19 drives the lifting seat 22 to pull the textile thread 12 upward, so that the textile thread 12 is engaged into the groove on the outer side of the take-up roller 2, so that the cut textile thread 12 can be automatically connected to the outer side of the take-up roller 2. When the output end of the second hydraulic cylinder 19 drives the lifting seat 22 to pull the textile thread 12 upward, it also drives the closed clamping plate 15 upward. When the textile thread 12 is not aligned with the outer groove of the take-up roller 2, a slight offset occurs. At this time, the slope 23 on the back of the clamping plate 15 will first contact the inner wall of the groove of the outer groove of the take-up roller 2. At the same time, driven by the second hydraulic cylinder 19, the clamping plate 15 can drive the textile thread 12 to adjust its lateral position, thereby causing the slide bar 41 to move laterally. This improves the accuracy of the engagement between the textile thread 12 and the take-up roller 2, eliminating the need for manual operation by the staff and thus improving the efficiency of the docking between the textile thread 12 and the take-up roller 2. When the two clamping pieces 15 are closed, they abut against the side of the textile thread 12 via the pressure roller 30. As the clamping pieces 15 move upwards and abut against the groove on the outside of the take-up roller 2, the output end of the second hydraulic cylinder 19 drives the traction plate 16 to continue moving upwards. This causes the rectangular rod 33 to compress the second power spring 44. Simultaneously, the power rod 34 moves upwards and contacts the ball rod 40, pushing the ball rod 40 to move the two clamping pieces 15 away from the take-up roller 2 via the suspension rod 35. This causes the pressure roller 30 to roll, thereby... The clamping piece 15 moves laterally under the action of the power rod 34 and the ball rod 40. At the same time, under the reset action of the second power spring 44, the clamping piece 15 can move upward again, so that the clamping piece 15 moves obliquely upward. This allows the inner pressed textile thread 12 to be inserted into the outer groove of the take-up roller 2 in an arc shape. When the clamping piece 15 moves out of the outer groove of the take-up roller 2, the pressure roller 30 on the inner side of the two clamping pieces 15 separates from the textile thread 12, thereby allowing the textile thread 12 to automatically be inserted into the outer groove of the take-up roller 2 to form an automatic connection. The clamping piece 15 moves obliquely upward to form an arc-shaped guide trajectory, which can "wrap" the inner pressed textile thread 12 into the groove of the take-up roller 2 in a way that conforms to the arc of the groove. This avoids thread deviation or jamming caused by straight pushing and ensures that the textile thread falls accurately into the groove. This solves the problem of "misalignment and jamming" during the docking process. The contact and pushing of the power rod 34 and the ball rod 40, and the reset action of the second power spring 44, form a compound action of "lateral fine adjustment + longitudinal lifting" of the clamping piece 15, so that the clamping piece can adjust according to the actual groove of the take-up roller 2. The position (even with minor installation errors or positional deviations) is adaptively adjusted, and docking can be completed without precise calibration, improving the equipment's adaptability to fluctuations in operating conditions. When the clamp 15 moves out of the groove of the take-up roller 2, the pressure roller 30 and the textile thread 12 automatically separate. This avoids secondary interference to the textile thread that is already stuck in the groove when the clamp is removed, and allows the textile thread to remain stably in the groove under its own tension or the rotation trend of the take-up roller, completing a fully automatic docking process of "thread feeding-clamping-separation" without manual assistance, reducing the intensity of manual operation.

[0024] The following describes a method for separating broken yarns on a rapier loom, based on the aforementioned yarn-breaking device, specifically including the following steps: S1. After the workpiece is wound on the take-up roller 2, the first hydraulic cylinder 7 can be started first. The output end of the first hydraulic cylinder 7 drives the dividing roller 5 to move upward, so that the textile thread 12 that needs to be cut is stuck in the dividing groove 11 on the outside of the dividing roller 5, and then the cutting operation is carried out by the existing cutting equipment. S2. During the upward movement of the U-shaped frame 8, since each pair of clamping pieces 15 are spread out in a figure-eight shape, when the textile thread 12 deviates from the dividing groove 11 outside the dividing roller 5, it can be aligned with the dividing groove 11 under the guidance of the figure-eight shaped ramp 23. S3. The oil supply pipe 10 is connected to an external hydraulic oil delivery pump through a pipeline. When the textile thread 12 needs to be cut, the hydraulic oil can be sent into the inside of the oil supply pipe 10 by the action of the external delivery pump and introduced into the inside of the sealing column 26 through the branch pipe 14. The piston rod 36 is pushed to drive the first auxiliary seat 18 to move upward, thereby driving the spur gear 29 to drive the clamping plate 15 to press towards the textile thread 12, so that the cutting operation can be performed by aligning with the cutting groove 31 position using the existing cutting equipment. S4. When the textile thread 12 is cut and the take-up roller 2 needs to be rewound, the outer side of the take-up roller 2 is provided with a groove for engaging the textile thread 12. When the cut textile thread 12 needs to be engaged into the groove on the outer side of the take-up roller 2, the linear module 4 can drive the split roller 5 to pull the cut textile thread 12 to the bottom of the take-up roller 2. At this time, the textile thread 12 between the two sets of clamping plates 15 is located below the take-up roller 2. Then, the second hydraulic cylinder 19 is activated, so that the output end of the second hydraulic cylinder 19 drives the lifting seat 22 to pull the textile thread 12 upward, so that the textile thread 12 is engaged into the groove on the outer side of the take-up roller 2, so that the cut textile thread 12 can be automatically connected to the outer side of the take-up roller 2. S5. When the output end of the second hydraulic cylinder 19 drives the lifting seat 22 to pull the textile thread 12 upward, it also drives the closed clamp 15 to move upward. When the textile thread 12 is not aligned with the outer groove of the take-up roller 2, it will slightly deviate. At this time, the slope 23 on the back of the clamp 15 will first contact the inner wall of the groove of the outer groove of the take-up roller 2. At the same time, under the drive of the second hydraulic cylinder 19, the clamp 15 can drive the textile thread 12 to adjust its lateral position, thereby making the slide bar 41 move laterally. S6. When the two clamping pieces 15 are closed, they abut against the side of the textile thread 12 through the pressure roller 30. When the clamping pieces 15 move upward and abut against the groove on the outside of the take-up roller 2, the output end of the second hydraulic cylinder 19 drives the traction plate 16 to continue moving upward, thereby squeezing the second power spring 44 through the rectangular rod 33. At the same time, the power rod 34 moves upward and contacts the ball rod 40, pushing the ball rod 40 to drive the two clamping pieces 15, which are pressed together, to move away from the take-up roller 2 through the suspension rod 35, thereby forming a rolling motion through the pressure roller 30. This allows the clamping plate 15 to move laterally under the action of the power rod 34 and the ball rod 40. At the same time, under the reset action of the second power spring 44, the clamping plate 15 can move upward again, thus making the clamping plate 15 move obliquely upward. This allows the inner pressed textile thread 12 to be inserted into the outer groove of the take-up roller 2 in an arc shape. When the clamping plate 15 moves out of the outer groove of the take-up roller 2, the pressure rollers 30 on the inner side of the two clamping plates 15 separate from the textile thread 12, thereby making the textile thread 12 automatically inserted into the outer groove of the take-up roller 2 to form an automatic connection.

[0025] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A yarn-breaking and separating device for a rapier loom, characterized in that, include: A take-up frame (1) and a rapier loom (3) disposed on one side of the take-up frame (1). A take-up roller (2) is installed on the inner side of the take-up frame (1). The article woven from the textile thread (12) is taken up onto the take-up roller (2) by the rapier loom (3). The dividing roller (5) is located on the inner side of the winding frame (1). The outer side of the dividing roller (5) has multiple inwardly recessed dividing grooves (11), and the multiple dividing grooves (11) are evenly distributed on the outer side of the dividing roller (5). The textile thread (12) is clamped through the dividing grooves (11). A clamping aid is located inside each of the branch grooves (11) and is used to assist the textile thread (12) in clamping and docking operations. The clamping aid includes a connecting seat (13) fixedly connected inside each of the branch grooves (11). Two sets of clamping pieces (15) are provided above the connecting seat (13), and each set of clamping pieces (15) has two pieces. A docking aid is located between the clamp (15) and the connecting seat (13) to assist the textile thread (12) in docking with the take-up roller (2).

2. The yarn breaking and separating device for a rapier loom according to claim 1, characterized in that, The clamping aid includes a support frame (6) disposed below the splitting roller (5). A first hydraulic cylinder (7) is installed inside the support frame (6). The output end of the first hydraulic cylinder (7) extends through to the top of the support frame (6) and is fixedly connected to a U-shaped frame (8). The splitting roller (5) is fixedly connected to the inner side of the U-shaped frame (8).

3. A yarn-breaking and separating device for a rapier loom according to claim 2, characterized in that, The clamping aid also includes two lifting seats (22) disposed inside the connecting seat (13). One of the lifting seats (22) has an inwardly recessed cutting groove (31) on its top. The two lifting seats (22) are respectively located below a set of clamping pieces (15), and each pair of clamping pieces (15) is rotatably connected to the inside of the lifting seat (22). A spur gear (29) is fixedly connected to the bottom of each clamping piece (15). A spur rack (28) meshes with one side of the spur gear (29). A sealing post (26) is disposed below the spur rack (28), and the sealing post (26) is... 6) The suspension rod (35) is fixedly connected to the lifting seat (22). A piston rod (36) is installed on the inner side of the sealing column (26), and one end of the piston rod (36) passes through to the top of the sealing column (26) and is fixedly connected to a push rod (27). A piston spring (37) is installed between the piston rod (36) and the sealing column (26), and the push rod (27) is fixedly connected to two straight racks (28). An oil supply assembly is provided between the U-shaped frame (8) and the sealing column (26). A correction auxiliary assembly is provided between the bottom of the sealing column (26) and the textile thread (12).

4. A yarn-breaking and separating device for a rapier loom according to claim 3, characterized in that, The oil supply assembly includes a connecting plate (9) fixedly connected to one side of the U-shaped frame (8), an oil supply pipe (10) fixedly connected to the inner side of the connecting plate (9), a branch pipe (14) fixedly connected to the oil outlet of the oil supply pipe (10), corrugated hoses (20) fixedly connected to the oil outlets on both sides of the branch pipe (14), and one end of the corrugated hose (20) is installed at the oil inlet of the sealing column (26).

5. A yarn breaking and separating device for a rapier loom according to claim 3, characterized in that, The correction auxiliary component includes an auxiliary frame (25) disposed inside the textile thread (12). A slide rod (41) is slidably connected to the inner side of the auxiliary frame (25). Both ends of the slide rod (41) extend to the outside of the auxiliary frame (25). A ring (42) is fixedly connected to one end of the slide rod (41), and an auxiliary spring (43) is installed between the ring (42) and the auxiliary frame (25). The slide rod (41) is fixedly connected to the bottom of the sealing column (26), and a ramp (23) is provided on the back of the clamp (15).

6. A yarn-breaking and separating device for a rapier loom according to claim 5, characterized in that, The docking aid includes two linear modules (4) installed inside the winding frame (1), and the support frame (6) is installed at the execution end of the linear module (4). A traction plate (16) is provided below each textile thread (12), and two traction plates (16) are fixedly connected by a connecting rod (17). Two first auxiliary seats (18) are fixedly connected to one side of one of the textile threads (12). A second hydraulic cylinder (19) is installed on the top of each first auxiliary seat (18). The output end of the second hydraulic cylinder (19) extends through to the bottom of the first auxiliary seat (18) and is fixedly connected to a second auxiliary seat (2). 1), and the second auxiliary seat (21) is fixedly connected to the traction plate (16). Two rectangular rods (33) are fixedly connected to the top of each traction plate (16). A rectangular sleeve (32) is slidably connected to the outer wall of each rectangular rod (33). A second power spring (44) is installed between the rectangular rod (33) and the rectangular sleeve (32). One end of the rectangular sleeve (32) passes through to the inner side of the connecting seat (13) and is fixedly connected to an adjusting seat (24). The adjusting seat (24) is located at the bottom of the auxiliary frame (25). A horizontal push auxiliary component is provided between the adjusting seat (24) and the auxiliary frame (25).

7. A yarn-breaking and separating device for a rapier loom according to claim 6, characterized in that, The lateral push auxiliary component includes a T-shaped block (38) fixedly connected to the bottom of the auxiliary frame (25). The inner side of the adjustment seat (24) is provided with a T-shaped groove that matches the T-shaped block (38). A first power spring (39) is installed between the T-shaped block (38) and the T-shaped groove.

8. A yarn-breaking and separating device for a rapier loom according to claim 7, characterized in that, The horizontal push auxiliary assembly also includes a spherical rod (40) fixedly connected to the end of the auxiliary frame (25), a power rod (34) fixedly connected to both sides of the traction plate (16), and the top of the power rod (34) is provided with an inclined surface. The top of the adjusting seat (24) is provided with a through groove that passes through the connecting seat (13), and the diameter of the through groove is larger than that of the power rod (34). The inner side of the clamp (15) is rotatably connected to a pressure roller (30).

9. A method for separating broken yarns on a rapier loom, characterized in that, The yarn breakage separating device for a rapier loom as described in claim 8 includes the following steps: S1. After the workpiece is wound on the take-up roller (2), the first hydraulic cylinder (7) can be started first. The output end of the first hydraulic cylinder (7) drives the dividing roller (5) to move upward, so that the textile thread (12) that needs to be cut is stuck in the dividing groove (11) on the outside of the dividing roller (5), and then the cutting operation is carried out by the existing cutting equipment. S2. During the upward movement of the U-shaped frame (8), since every two slopes (23) are in a figure-eight shape, when the textile thread (12) deviates from the dividing groove (11) outside the dividing roller (5), it can be aligned with the dividing groove (11) under the guidance of the slopes (23) in a figure-eight shape. S3. The oil supply pipe (10) is connected to an external hydraulic oil delivery pump through a pipeline. When the textile thread (12) needs to be cut, the hydraulic oil can be sent into the inside of the oil supply pipe (10) by the action of the external delivery pump and introduced into the inside of the sealing column (26) through the branch pipe (14). The piston rod (36) is pushed to drive the first auxiliary seat (18) to move upward, thereby driving the spur gear (29) to drive the clamp (15) to press towards the textile thread (12) so that the cutting operation can be performed by aligning the cutting groove (31) with the existing cutting equipment. S4. When the textile thread (12) is cut and the take-up roller (2) needs to be re-wound when it is updated, the take-up roller (2) has a groove on the outside for engaging the textile thread (12). When the cut textile thread (12) needs to be engaged in the groove on the outside of the take-up roller (2), the linear module (4) can drive the split roller (5) to pull the cut textile thread (12) to the bottom of the take-up roller (2) (at this time, the textile thread (12) between the two sets of clamps (15) is located below the take-up roller (2). Then, the second hydraulic cylinder (19) is started, so that the output end of the second hydraulic cylinder (19) drives the lifting seat (22) to pull the textile thread (12) upward, so that the textile thread (12) is engaged in the groove on the outside of the take-up roller (2), so that the cut textile thread (12) can be automatically connected to the outside of the take-up roller (2). S5. When the output end of the second hydraulic cylinder (19) drives the lifting seat (22) to pull the textile thread (12) upward, it also drives the closed clamp (15) to move upward. When the textile thread (12) is not aligned with the outer groove of the take-up roller (2) (a slight offset occurs), the slope (23) on the back of the clamp (15) will first contact the inner wall of the groove of the outer groove of the take-up roller (2). At the same time, under the drive of the second hydraulic cylinder (19), the clamp (15) can drive the textile thread (12) to adjust its lateral position, thereby making the slide bar (41) move laterally. S6. When the two clamping pieces (15) are closed, they abut against the side of the textile thread (12) through the pressure roller (30). When the clamping pieces (15) abut against the groove opened on the outside of the take-up roller (2) during the upward movement, the output end of the second hydraulic cylinder (19) drives the traction plate (16) to continue moving upward, thereby forming a squeeze on the second power spring (44) through the rectangular rod (33). At the same time, the power rod (34) moves upward and contacts the ball rod (40), pushing the ball rod (40) to drive the two clamping pieces (15) that are pressed together to move away from the take-up roller (2) through the suspension rod (35), thereby forming a squeeze on the second power spring (44) through the pressure roller (30). The rolling motion causes the clamping piece (15) to move laterally under the action of the power rod (34) and the ball rod (40). At the same time, the second power spring (44) resets the clamping piece (15) so that it can move upward again, thus forming an oblique upward movement. This allows the inner pressed textile thread (12) to be inserted into the outer groove of the take-up roller (2) in an arc shape. When the clamping piece (15) moves out of the outer groove of the take-up roller (2), the pressure rollers (30) on the inner sides of the two clamping pieces (15) separate from the textile thread (12), thereby automatically inserting the textile thread (12) into the outer groove of the take-up roller (2) to form an automatic connection.

Citation Information

Patent Citations

  • Yarn breaking and separating device for rapier loom

    CN115367524A