A jet loom warp take-up device
Patent Information
- Application Number
- CN202522188296.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-16
AI Technical Summary
由于断经后纱线头端形态不规则、位置不确定,固定的吸嘴难以精准地对准并捕捉断经,容易出现吸取失败或吸取不彻底的情况
[0013]本实用新型的有益效果是:通过旋转机构能够转动吸嘴,使得吸嘴靠近断经位置,气流通过吸嘴从出气口处排出,从而在吸料口处形成负压,能够有效地将断掉的经纱吸入。
Smart Images

Figure CN224799075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loom technology, and more specifically, to a warp-cutting device for an air-jet loom. Background Technology
[0002] Air-jet looms, as key equipment in the modern textile industry, are widely used due to their high speed, high efficiency, and high degree of automation. Their weft insertion method utilizes airflow to pull the weft yarn through the shed formed by the warp yarns. During this high-speed operation, the warp yarns inevitably experience warp breakage due to continuous exposure to complex mechanical stresses such as friction and tension. Existing suction nozzles are usually fixed or have limited range of motion, and there is often a certain distance between the suction nozzle position and the point of warp breakage. Because the yarn ends are irregular in shape and uncertain in position after a break, fixed suction nozzles cannot accurately align with and capture the break, easily resulting in failed or incomplete suction. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for cutting warp threads on an air-jet loom.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This utility model discloses a device for suction and cutting warp in an air-jet loom, including a guide rail bracket, a movable seat, and a drive mechanism. The movable seat is disposed on the upper part of the guide rail bracket, and the drive mechanism can drive the movable seat to move along the guide rail bracket. An installation frame is fixedly installed on the movable seat, and a drive shaft is rotatably disposed inside the installation frame. A suction nozzle is installed on the drive shaft, and a rotating mechanism is installed on the installation frame. The rotating mechanism drives and connects to the drive shaft. The suction nozzle has a hollow structure, with one end of the suction nozzle near the drive shaft closed and an air outlet at the other end of the suction nozzle away from the drive shaft. A suction port is provided on the side of the suction nozzle near the air outlet, and a suction nozzle connector is connected to the side of the suction nozzle near the drive shaft.
[0006] Furthermore, the drive mechanism includes a lead screw motor and a lead screw, with the lead screw motor driving the lead screw and the movable seat mounted on the lead screw.
[0007] Furthermore, it includes two support seats, with the lead screw rotatably positioned between the two support seats, and the lead screw motor mounted on one of the support seats.
[0008] Furthermore, it includes two wall panels, with two support bases fixedly installed on one of the wall panels respectively.
[0009] Furthermore, the rotating mechanism includes a cylinder, one end of which is driven and connected to a spherical bearing. A rotating seat is mounted on the side of the mounting frame. The end of the cylinder away from the spherical bearing is rotatably mounted on the rotating seat. A rotating shaft is rotatably connected to the side of the mounting frame. A sector gear is mounted on the rotating shaft. The rotating mechanism also includes a rocker arm, one end of which is hinged to the spherical bearing and the other end is fixedly connected to the rotating shaft. One end of the drive shaft extends out of the mounting frame and is connected to a drive gear, which meshes with the sector gear.
[0010] Furthermore, the cylinder includes cylinder connector one and cylinder connector two, and a solenoid valve one is mounted on the mounting frame. The solenoid valve one includes an air inlet connector one, a mounting connector one, and a mounting connector two. The mounting connector one is connected to the cylinder connector one via a hose, and the mounting connector two is connected to the cylinder connector two via a hose.
[0011] Furthermore, a second solenoid valve is installed on the mounting frame. The second solenoid valve includes an air inlet connector and an air supply connector, and the air supply connector is connected to the nozzle connector via a hose.
[0012] Furthermore, a cable chain is installed on the guide rail bracket.
[0013] The beneficial effects of this utility model are: the rotating mechanism can rotate the suction nozzle so that the suction nozzle is close to the broken warp position, and the airflow is discharged from the air outlet through the suction nozzle, thereby forming a negative pressure at the suction port, which can effectively suck in the broken warp yarn. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one structure of the air-jet loom warp-cutting device in this embodiment;
[0015] Figure 2 This is a schematic diagram of one structure of the mounting frame in this embodiment;
[0016] Figure 3 This is a schematic diagram of the installation frame in use in this embodiment.
[0017] Reference numerals: 1. Wall panel; 2. Guide rail bracket; 3. Support base; 4. Screw motor; 5. Screw; 6. Moving base; 7. Mounting frame; 8. Cable chain; 9. Warp thread; 10. Stop warp piece; 11. Drive shaft; 12. Suction nozzle; 13. Air outlet; 14. Material suction port; 15. Rotating base; 16. Cylinder; 17. Spherical bearing; 18. Rocker arm; 19. Rotating shaft; 20. Sector gear; 21. Cylinder connector one; 22. Cylinder connector two; 23. Suction nozzle connector; 24. Solenoid valve one; 25. Air inlet connector one; 26. Mounting connector one; 27. Mounting connector two; 28. Solenoid valve two; 29. Air inlet connector two; 30. Air supply connector; 31. Drive gear. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] like Figures 1-3 As shown, a warp-cutting device for an air-jet loom includes a drive mechanism and two wall plates 1. Each wall plate 1 has a support base 3 fixedly mounted on it. A guide rail bracket 2 is positioned between the two support bases 3, with its left and right ends fixed to the two support bases 3 respectively. The drive mechanism includes a lead screw motor 4 and a lead screw 5. The lead screw 5 is mounted between the two support bases 3 via bearings, and the lead screw motor 4 is fixedly mounted on one of the support bases 3. One end of the lead screw 5 is connected to the drive shaft of the lead screw motor 4 via a coupling. A movable seat 6 is provided on the upper part of the guide rail bracket 2, and the movable seat 6 is threadedly engaged with the lead screw 5. The lead screw 5 is driven to rotate by the lead screw motor 4, enabling it to move left and right on the guide rail bracket 2.
[0020] A mounting frame 7 is fixedly installed on the movable base 6. A drive shaft 11 is rotatably mounted inside the mounting frame 7. A suction nozzle 12 is mounted on the drive shaft 11 and fixed to the drive shaft 11 with screws. A rotating mechanism is mounted on the mounting frame 7, which drives the drive shaft 11. The suction nozzle 12 has a hollow structure with an internal cavity. The end of the suction nozzle 12 near the drive shaft 11 is closed, and the end of the suction nozzle 12 away from the drive shaft 11 has an air outlet 13. A suction port 14 is opened on the side of the suction nozzle 12 near the air outlet 13. The air outlet 13 and the suction port 14 are connected to the cavity. A suction nozzle connector 23 is connected to the side of the suction nozzle 12 near the drive shaft 11 and is connected to the cavity.
[0021] The rotating mechanism includes a cylinder 16, one end of which is driven and connected to a spherical bearing 17. A rotating seat 15 is mounted on the side of the mounting frame 7. The end of the cylinder 16 away from the spherical bearing 17 is mounted on the rotating seat 15, allowing it to rotate flexibly. A rotating shaft 19 is rotatably connected to the side of the mounting frame 7. A sector gear 20 is mounted on the rotating shaft 19. The rotating mechanism also includes a rocker arm 18, one end of which is hinged to the spherical bearing 17, and the other end is fixedly connected to the rotating shaft 19. One end of a drive shaft 11 extends out of the mounting frame 7 and is connected to a drive gear 31, which meshes with the sector gear 20.
[0022] Cylinder 16 includes cylinder connector 21 and cylinder connector 22. A solenoid valve 24 is mounted on the mounting frame 7. Solenoid valve 24 includes an intake connector 25, a mounting connector 26, and a mounting connector 27. Mounting connector 26 is connected to cylinder connector 21 via a hose, and mounting connector 27 is connected to cylinder connector 22 via a hose. Intake connector 25 connects to the intake pipe.
[0023] Furthermore, a second solenoid valve 28 is installed on the mounting frame 7. The second solenoid valve 28 includes an air inlet connector 29 and an air supply connector 30. The air supply connector 30 is connected to the nozzle connector 23 via a flexible hose. The second air inlet connector 29 is connected to the air inlet pipe.
[0024] Furthermore, a cable chain 8 is installed on the guide rail bracket 2, and the air intake pipe and communication line are installed inside the cable chain 8.
[0025] When warp thread 9 breaks, the warp stop piece 10 falls, triggering the position sensor. The position sensor on the warp stop frame sends a signal to the control center of the electronic control system. After processing, the control center sends a position signal to the lead screw motor 4. The lead screw motor 4 drives the lead screw 5 to rotate, bringing the suction nozzle 12 to the position where the warp stop piece 10 falls. After positioning, the control center sends a command to the solenoid valve 24, connecting the air inlet connector 25 to the mounting connector 27. Airflow enters the cylinder 16 through the air inlet connector 25, mounting connector 27, and cylinder connector 22, causing the piston rod to extend. The spherical bearing 17 on the piston rod drives the sector gear 20 on the rotating shaft 19 to rotate via the rocker arm 18. The sector gear 20 rotates counterclockwise, thereby driving the meshing drive gear 31 to rotate clockwise. The drive gear 31 drives the suction nozzle 12 to rotate and descend via the drive shaft 11, bringing the suction port 14 closer to the warp thread 9. Solenoid valve 28 opens, allowing airflow to enter the suction nozzle 12 through inlet connector 29, supply connector 30, and suction nozzle connector 23. The airflow exits from outlet 13, creating negative pressure at suction port 14, which draws in the broken warp yarn. Solenoid valve 24 connects inlet connector 25 to mounting connector 26, allowing airflow to enter cylinder 16 through inlet connector 25, mounting connector 26, and cylinder connector 21. The piston rod retracts into cylinder 16, driving sector gear 20 to rotate clockwise. Sector gear 20 then drives drive gear 31 to rotate counterclockwise, raising suction nozzle 12 to a certain height, awaiting warp insertion. After insertion, suction nozzle 12 continues to rise, returning to its initial position. Solenoid valves 24 and 28 close, ceasing air supply.
[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A device for preventing warp breakage on an air-jet loom, characterized in that, The device includes a guide rail bracket (2), a movable seat (6), and a drive mechanism. The movable seat (6) is located on the upper part of the guide rail bracket (2). The drive mechanism can drive the movable seat (6) to move along the guide rail bracket (2). An installation frame (7) is fixedly installed on the movable seat (6). A drive shaft (11) is rotatably installed inside the installation frame (7). A suction nozzle (12) is installed on the drive shaft (11). A rotating mechanism is installed on the installation frame (7). The rotating mechanism drives and connects to the drive shaft (11). The suction nozzle (12) has a hollow structure. The end of the suction nozzle (12) near the drive shaft (11) is closed. An air outlet (13) is opened at the end of the suction nozzle (12) away from the drive shaft (11). A suction port (14) is opened on the side of the suction nozzle (12) near the air outlet (13). A suction nozzle connector (23) is connected to the side of the suction nozzle (12) near the drive shaft (11).
2. The air-jet loom warp-cutting device according to claim 1, characterized in that, The driving mechanism includes a lead screw motor (4) and a lead screw (5), the lead screw motor (4) drives the lead screw (5), and the movable seat (6) is mounted on the lead screw (5).
3. The air-jet loom warp-cutting device according to claim 2, characterized in that, It includes two support seats (3), the lead screw (5) is rotatably disposed between the two support seats (3), and the lead screw motor (4) is installed on one of the support seats (3).
4. The air-jet loom warp-cutting device according to claim 3, characterized in that, It includes two wall panels (1) and two support bases (3) that are fixedly installed on one of the wall panels (1).
5. The air-jet loom warp-cutting device according to claim 1, characterized in that, The rotating mechanism includes a cylinder (16), one end of which is driven and connected to a spherical bearing (17). A rotating seat (15) is mounted on the side of the mounting frame (7). The end of the cylinder (16) away from the spherical bearing (17) is rotatably mounted on the rotating seat (15). A rotating shaft (19) is rotatably connected to the side of the mounting frame (7). A sector gear (20) is mounted on the rotating shaft (19). The rotating mechanism also includes a rocker arm (18), one end of which is hinged to the spherical bearing (17) and the other end is fixedly connected to the rotating shaft (19). One end of the drive shaft (11) extends out of the mounting frame (7) and is connected to a drive gear (31). The drive gear (31) meshes with the sector gear (20).
6. The air-jet loom warp-cutting device according to claim 5, characterized in that, The cylinder (16) includes a cylinder connector one (21) and a cylinder connector two (22). A solenoid valve one (24) is installed on the mounting frame (7). The solenoid valve one (24) includes an air inlet connector one (25), a mounting connector one (26) and a mounting connector two (27). The mounting connector one (26) is connected to the cylinder connector one (21) via a hose, and the mounting connector two (27) is connected to the cylinder connector two (22) via a hose.
7. The air-jet loom warp-cutting device according to claim 1, characterized in that, The mounting frame (7) is equipped with a second solenoid valve (28), which includes an air inlet connector (29) and an air supply connector (30). The air supply connector (30) is connected to the nozzle connector (23) via a hose.
8. The air-jet loom warp-cutting device according to claim 1, characterized in that, The guide rail bracket (2) is equipped with a drag chain (8).