Warp loosening device of air jet loom

Abstract

The utility model relates to the field of air-jet looms, and discloses a warp loosening device of an air-jet loom, which comprises a base and a pressure roller, two moving plates are slidably arranged at the top of the base, sliders are slidably arranged on the moving plates, a synchronous lifting warp loosening mechanism is arranged between the two moving plates and the two sliders, and the pressure roller is arranged on the pressure roller. A left clamping mechanism and a right clamping mechanism are arranged between the base and the two moving plates, a rotating shaft is rotationally connected to one side of the sliding block, a square block is fixedly connected to one end of the rotating shaft, and square grooves are formed in the two ends of the pressure roller. The device has the following advantages and effects that pressure rollers with different specifications and lengths can be disassembled and assembled conveniently according to use requirements, the use range of the device is widened, transmission of the motor and the two bevel gear sets is adopted, the two lifting lead screws can be synchronously driven to rotate, the consistency in the lifting process can be guaranteed, and the working efficiency is improved. And the pressure roller is not easy to incline to reduce the loose warp effect.

Description

Technical Field

[0001] This utility model relates to the field of air-jet loom technology, and in particular to a warp loosening device for an air-jet loom. Background Technology

[0002] Air-jet looms are shuttleless looms that use jet airflow to pull the weft yarn through the shed. The working principle is to use air as the weft-introducing medium, and the compressed airflow generated by the jet will generate frictional traction force on the weft yarn to pull it through the shed. The jet generated by the airflow achieves the purpose of weft introduction.

[0003] A search revealed a Chinese patent (CN210066057U) for a warp loosening device for an air-jet loom. The device includes a frame connected to the air-jet loom, connecting seats on both sides of the frame, with sliding grooves in the connecting seats and sliding rods slidably mounted thereon. A pressure roller is rotatably mounted between the two sliding rods. A guide rod and a slider are located below the sliding rods, with the slider slidably mounted on the guide rod. The top of the slider and the bottom of the sliding rod are both provided with inclined surfaces for contact. A drive mechanism for driving the slider is located on one side of the frame. A tension sensor for detecting yarn tension is located on the frame, as is a controller for controlling the start and stop of the drive mechanism. The tension sensor is electrically connected to the controller, and the controller is electrically connected to the drive mechanism.

[0004] However, the aforementioned warp loosening device for air-jet looms still has shortcomings. Dust and lint will accumulate on the surface of the pressure roller after long-term use. The pressure roller is relatively fixed, making it inconvenient to disassemble and assemble pressure rollers of different specifications and lengths, thus reducing the scope of use of the device. Furthermore, the front and rear sides of the pressure roller are driven by two motors for lifting. When the two motors cannot operate in unison, the pressure roller will tilt, reducing the warp loosening effect. Therefore, we propose a warp loosening device for air-jet looms to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a warp loosening device for an air-jet loom, which allows for easy assembly and disassembly of pressure rollers of different lengths according to usage needs, thereby increasing the range of applications of the device. Furthermore, it employs a motor and two sets of bevel gears for transmission, which can synchronously drive the rotation of two lifting screws, thus ensuring consistency during lifting and lowering, making it less likely for the pressure rollers to tilt and reduce the warp loosening effect.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a warp loosening device for an air-jet loom, comprising a base and a pressure roller disposed on the front side of the air-jet loom, two movable plates slidably disposed on the top of the base, sliders slidably disposed on the movable plates, a synchronous lifting warp loosening mechanism disposed between the two movable plates and the two sliders, a left and right clamping mechanism disposed between the base and the two movable plates, a rotating shaft rotatably connected to one side of the slider, a square block fixedly connected to one end of the rotating shaft, and square grooves opened at both ends of the pressure roller, with the two square blocks respectively movably inserted into the corresponding square grooves.

[0007] A further feature of this invention is that a bearing is fixedly connected to one side of the slider, and the rotating shaft is fixedly sleeved inside the inner ring of the bearing.

[0008] By adopting the above technical solution, the rotating shaft can be supported, thereby improving the smoothness and stability of the rotation of the rotating shaft and the pressure roller.

[0009] A further feature of this invention is as follows: the left and right clamping mechanisms include a mounting frame fixedly connected to the bottom of the base; a drive motor is fixedly connected to the inner wall of the bottom of the mounting frame; a drive shaft is fixedly connected to the output shaft of the drive motor; a drive tooth is fixedly connected to the top of the drive shaft; a rotating shaft is rotatably connected to the inner wall of the bottom of the mounting frame; a driven tooth is fixedly sleeved on the outer side of the rotating shaft; the drive tooth meshes with the driven tooth; a rotating plate is fixedly connected to the top of the rotating shaft; two push-pull rods are rotatably connected to the top of the rotating plate; the two push-pull rods are rotatably connected to the inner side of the corresponding moving plate; two support plates are fixedly connected to the top of the base; a guide plate is fixedly connected between the two support plates; both moving plates are slidably sleeved on the outer side of the guide plate; and a controller is fixedly connected to one side of the right support plate.

[0010] By adopting the above technical solution, pressure rollers of different lengths are placed between two moving plates and two rotating shafts, and the square slots and square blocks of the pressure rollers are aligned. The drive motor is started, which drives the drive shaft and the active gear to rotate. The active gear drives the driven gear, the rotating shaft and the rotating plate to rotate. The rotating plate drives the two push-pull rods to move closer to each other and drives the two moving plates and the two square blocks to move closer to each other, so that the two square blocks are inserted into the corresponding square slots. In this way, pressure rollers of different lengths can be connected between the two rotating shafts, which greatly improves the application range of the device and facilitates the disassembly and maintenance of the pressure rollers.

[0011] A further feature of this invention is that a second bearing is fixedly connected to the bottom inner wall of the mounting bracket, and the rotating shaft is fixedly sleeved inside the inner ring of the second bearing.

[0012] By adopting the above technical solution, the rotating shaft can be supported, making its rotation more stable.

[0013] A further feature of this invention is that the push-pull rod is rotatably connected between the moving plate and the rotating plate via a hinge.

[0014] By adopting the above technical solution, it is beneficial to rotatably position the push-pull rod between the rotating plate and the moving plate.

[0015] A further feature of this invention is that the synchronous lifting and loosening mechanism includes two connecting shafts and a servo motor fixedly connected to the top of the left movable plate, as well as a groove formed on one side of the movable plate. One end of the left connecting shaft is fixedly connected to a square rod, and one end of the right connecting shaft is provided with a slot. The square rod is movably inserted into the slot. The output shaft of the servo motor is fixedly connected to one end of the left connecting shaft. An upper bevel gear is fixedly sleeved on the outer side of the connecting shaft. Lifting screws are rotatably connected to the upper and lower inner walls of the groove. The top ends of the two lifting screws are fixedly connected to lower bevel gears. The two upper bevel gears mesh with the corresponding lower bevel gears respectively. Two sliders are threadedly sleeved in the corresponding lifting screws respectively.

[0016] By adopting the above technical solution, when adjusting the distance between the two moving plates, the square rod can automatically slide in the slot. At the same time, the connecting shaft on the left can drive the connecting shaft on the right to rotate synchronously. When it is necessary to loosen the warp, the servo motor is started. The servo motor drives the two connecting shafts and the square rod to rotate synchronously. The two connecting shafts drive the two upper bevel gears to rotate synchronously. The two upper bevel gears drive the two lower bevel gears and the lifting screw to rotate synchronously. The two lifting screws synchronously drive the two sliders, the two rotating shafts and the pressure roller to move downward. The tension of the pressure roller on the warp is reduced, thereby achieving the effect of loosening the warp. Because the two rotating shafts and the pressure roller are driven to move downward synchronously, the pressure roller is prevented from tilting, which would reduce the effect of loosening the warp.

[0017] A further feature of this invention is that a fixed base is fixedly connected to the top of the left movable plate, the servo motor is fixedly connected to the top of the fixed base, a stabilizing plate is fixedly connected to one side of the right movable plate, and the right connecting shaft is rotatably connected to one side of the stabilizing plate.

[0018] By adopting the above technical solution, the connecting shaft can be supported, making its rotation more stable, and the servo motor can be supported and fixed, making its operation more stable.

[0019] A further feature of this invention is that the two sliders are respectively slidably fitted into the corresponding grooves.

[0020] By adopting the above technical solution, it is convenient to guide the slider so that it does not rotate together with the lifting screw.

[0021] The beneficial effects of this utility model are:

[0022] This invention places pressure rollers of different lengths between two movable plates and two rotating shafts, aligning the square slots on the pressure rollers with the square blocks. The drive motor is then activated, causing the drive shaft and the active gear to rotate. The active gear, in turn, drives the driven gear, the rotating shaft, and the rotating plate to rotate. The rotating plate causes the two push-pull rods to move closer together, which in turn drives the two movable plates and the two square blocks to move closer together, allowing the two square blocks to insert into their corresponding square slots. This allows pressure rollers of different lengths to be connected between the two rotating shafts, greatly expanding the device's usability and facilitating the disassembly and maintenance of the pressure rollers.

[0023] Because of the sliding of the square rod and the slot, when adjusting the distance between the two moving plates, the square rod can automatically slide in the slot. At the same time, the connecting shaft on the left can drive the connecting shaft on the right to rotate synchronously. The arrangement of the square block and the square slot facilitates the rotation of the rotating shaft and the pressure roller together.

[0024] 3. When the warp needs to be loosened, the servo motor is started. The servo motor drives the two connecting shafts and the square rod to rotate synchronously. The two connecting shafts drive the two upper bevel gears to rotate synchronously. The two upper bevel gears drive the two lower bevel gears and the lifting screw to rotate synchronously. The two lifting screws synchronously drive the two sliders, the two rotating shafts and the pressure roller to move downwards. The tension of the pressure roller on the warp is reduced, thereby achieving the effect of loosening the warp. Because the two rotating shafts and the pressure roller are driven to move downwards synchronously, the pressure roller is prevented from tilting, which would reduce the effect of loosening the warp. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a warp loosening device for an air-jet loom proposed in this utility model;

[0027] Figure 2 This is a partial cross-sectional view of the moving plate and pressure roller of the warp loosening device of an air-jet loom proposed in this utility model;

[0028] Figure 3 for Figure 1 A schematic diagram of the structure of part A;

[0029] Figure 4 This is a cross-sectional view of the connecting shaft and square bar of the warp loosening device of an air-jet loom proposed in this utility model.

[0030] In the diagram, 1. Base; 2. Support plate; 3. Guide plate; 4. Moving plate; 5. Left and right clamping mechanism; 6. Controller; 7. Pressure roller; 8. Synchronous lifting and loosening mechanism; 9. Bearing 1; 10. Rotating shaft; 11. Square groove; 12. Square block; 51. Mounting bracket; 52. Bearing 2; 53. Drive motor; 54. Drive shaft; 55. Driving gear; 56. Driven gear; 57. Rotating shaft; 58. Rotating plate; 59. Push-pull rod; 801. Fixed seat; 802. Servo motor; 803. Upper bevel gear; 804. Connecting shaft; 805. Lower bevel gear; 806. Square rod; 807. Stabilizing plate; 808. Lifting screw; 809. Groove; 810. Slider; 811. Slot. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] See Figure 1 — Figure 4 This utility model provides a warp loosening device for an air-jet loom, including a base 1 and a pressure roller 7 located at the front of the air-jet loom. Two movable plates 4 are slidably arranged on the top of the base 1, and sliders 810 are slidably arranged on the movable plates 4. A synchronous lifting warp loosening mechanism 8 is arranged between the two movable plates 4 and the two sliders 810. A left and right clamping mechanism 5 is arranged between the base 1 and the two movable plates 4. A rotating shaft 10 is rotatably connected to one side of the slider 810. A square block 12 is fixedly connected to one end of the rotating shaft 10. Square grooves 11 are opened at both ends of the pressure roller 7, and the two square blocks 12 are respectively movably inserted into the corresponding square grooves 11.

[0033] Specifically, a bearing 9 is fixedly connected to one side of the slider 810, and the rotating shaft 10 is fixedly sleeved inside the inner ring of the bearing 9.

[0034] Specifically, the left and right clamping mechanism 5 includes a mounting bracket 51 fixedly connected to the bottom of the base 1. A drive motor 53 is fixedly connected to the bottom inner wall of the mounting bracket 51. A drive shaft 54 ​​is fixedly connected to the output shaft of the drive motor 53. An active gear 55 is fixedly connected to the top of the drive shaft 54. A rotating shaft 57 is rotatably connected to the bottom inner wall of the mounting bracket 51. A driven gear 56 is fixedly sleeved on the outer side of the rotating shaft 57. The active gear 55 meshes with the driven gear 56. A rotating plate 58 is fixedly connected to the top of the rotating shaft 57. Two push-pull rods 59 are rotatably connected to the top of the rotating plate 58. The two push-pull rods 59 are rotatably connected to the inner side of the corresponding moving plate 4.

[0035] Specifically, a bearing 52 is fixedly connected to the bottom inner wall of the mounting bracket 51, and a rotating shaft 57 is fixedly sleeved inside the inner ring of the bearing 52.

[0036] Specifically, the top of the base 1 is fixedly connected to two support plates 2, and the two support plates 2 are fixedly connected to the same guide plate 3. Both movable plates 4 are slidably sleeved on the outside of the guide plate 3.

[0037] Specifically, a controller 6 is fixedly connected to one side of the support plate 2 on the right side.

[0038] Specifically, the push-pull rod 59 is rotatably connected between the movable plate 4 and the rotating plate 58 via a hinge.

[0039] Specifically, the synchronous lifting and loosening mechanism 8 includes two connecting shafts 804 and a servo motor 802 fixedly connected to the top of the left movable plate 4, and a groove 809 opened on one side of the movable plate 4. A square rod 806 is fixedly connected to one end of the left connecting shaft 804, and a slot 811 is opened at one end of the right connecting shaft 804. The square rod 806 is movably inserted into the slot 811. The output shaft of the servo motor 802 is fixedly connected to one end of the left connecting shaft 804. An upper bevel gear 803 is fixedly sleeved on the outside of the connecting shaft 804. Lifting screws 808 are rotatably connected to the upper and lower inner walls of the groove 809. The top ends of the two lifting screws 808 are fixedly connected to lower bevel gears 805. The two upper bevel gears 803 mesh with the corresponding lower bevel gears 805 respectively. Two sliders 810 are threadedly sleeved in the corresponding lifting screws 808 respectively.

[0040] Specifically, a fixed base 801 is fixedly connected to the top of the left movable plate 4, and a servo motor 802 is fixedly connected to the top of the fixed base 801. A stabilizing plate 807 is fixedly connected to one side of the right movable plate 4, and a connecting shaft 804 on the right side is rotatably connected to one side of the stabilizing plate 807.

[0041] Specifically, the two sliders 810 are slidably fitted into the corresponding grooves 809.

[0042] In use, pressure rollers 7 of different lengths are placed between two movable plates 4 and two rotating shafts 10, with the square grooves 11 and square blocks 12 of the pressure rollers 7 aligned. The drive motor 53 is then started, which drives the drive shaft 54 ​​and the active gear 55 to rotate. The active gear 55 drives the driven gear 56, the rotating shaft 57, and the rotating plate 58 to rotate. The rotating plate 58 drives the two push-pull rods 59 to move closer together, which in turn drives the two movable plates 4 and the two square blocks 12 to move closer together, so that the two square blocks 12 are inserted into the corresponding square grooves 11. This allows pressure rollers 7 of different lengths to be connected between the two rotating shafts 10, greatly improving the range of applications of the device and facilitating the disassembly and maintenance of the pressure rollers 7.

[0043] Due to the sliding of the square rod 806 and the slot 811, when adjusting the distance between the two moving plates 4, the square rod 806 can automatically slide within the slot 811. At the same time, the connecting shaft 804 on the left can drive the connecting shaft 804 on the right to rotate synchronously. When it is necessary to loosen the warp, the servo motor 802 is started. The servo motor 802 drives the two connecting shafts 804 and the square rod 806 to rotate synchronously. The two connecting shafts 804 drive the two upper bevel gears 803 to rotate synchronously. The two upper bevel gears 803 drive the two lower bevel gears 805 and the lifting screw 808 to rotate synchronously. The two lifting screws 808 synchronously drive the two sliders 810, the two rotating shafts 10 and the pressure roller 7 to move downward. The tension of the pressure roller 7 on the warp is reduced, thereby achieving the effect of loosening the warp. Because the two rotating shafts 10 and the pressure roller 7 are driven to move downward synchronously, the pressure roller 7 is prevented from tilting and reducing the effect of loosening the warp.

Claims

1. A warp loosening device for an air-jet loom, characterized in that, The system includes a base (1) and a pressure roller (7) on the front side of the air jet loom. Two movable plates (4) are slidably arranged on the top of the base (1). A slider (810) is slidably arranged on the movable plates (4). A synchronous lifting and loosening mechanism (8) is arranged between the two movable plates (4) and the two sliders (810). A left and right clamping mechanism (5) is arranged between the base (1) and the two movable plates (4). A rotating shaft (10) is rotatably connected to one side of the slider (810). A square block (12) is fixedly connected to one end of the rotating shaft (10). Square grooves (11) are opened at both ends of the pressure roller (7). The two square blocks (12) are movably inserted into the corresponding square grooves (11).

2. The warp loosening device for an air-jet loom according to claim 1, characterized in that: A bearing (9) is fixedly connected to one side of the slider (810), and the rotating shaft (10) is fixedly sleeved inside the inner ring of the bearing (9).

3. The warp loosening device for an air-jet loom according to claim 1, characterized in that: The left and right clamping mechanism (5) includes a mounting bracket (51) fixedly connected to the bottom of the base (1). A drive motor (53) is fixedly connected to the bottom inner wall of the mounting bracket (51). A drive shaft (54) is fixedly connected to the output shaft of the drive motor (53). An active tooth (55) is fixedly connected to the top of the drive shaft (54). A rotating shaft (57) is rotatably connected to the bottom inner wall of the mounting bracket (51). A driven tooth (56) is fixedly sleeved on the outer side of the rotating shaft (57). The active tooth (55) meshes with the driven tooth (56). A rotating plate (58) is fixedly connected to the top of the rotating shaft (57). Two push-pull rods (59) are rotatably connected to the top of the rotating plate (58). The two push-pull rods (59) are rotatably connected to the inner side of the corresponding moving plate (4).

4. The warp loosening device for an air-jet loom according to claim 3, characterized in that: The second bearing (52) is fixedly connected to the bottom inner wall of the mounting bracket (51), and the rotating shaft (57) is fixedly sleeved inside the inner ring of the second bearing (52).

5. The warp loosening device for an air-jet loom according to claim 1, characterized in that: The top of the base (1) is fixedly connected to two support plates (2), and the two support plates (2) are fixedly connected to the same guide plate (3). The two movable plates (4) are slidably sleeved on the outside of the guide plate (3).

6. The warp loosening device for an air-jet loom according to claim 5, characterized in that: A controller (6) is fixedly connected to one side of the support plate (2) on the right side.

7. The warp loosening device for an air-jet loom according to claim 3, characterized in that: The push-pull rod (59) is rotatably connected between the moving plate (4) and the rotating plate (58) via a hinge.

8. The warp loosening device for an air-jet loom according to claim 1, characterized in that: The synchronous lifting and loosening mechanism (8) includes two connecting shafts (804) and a servo motor (802) fixedly connected to the top of the left movable plate (4), and a groove (809) opened on one side of the movable plate (4). One end of the left connecting shaft (804) is fixedly connected to a square rod (806), and one end of the right connecting shaft (804) is provided with a slot (811). The square rod (806) is movably inserted into the slot (811), and the output shaft of the servo motor (802) is fixedly connected to the square rod (806). A connecting shaft (804) is fixedly connected to one end on the left side. An upper bevel gear (803) is fixedly sleeved on the outer side of the connecting shaft (804). A lifting screw (808) is rotatably connected to the upper and lower inner walls of the groove (809). A lower bevel gear (805) is fixedly connected to the top of each of the two lifting screws (808). The two upper bevel gears (803) mesh with the corresponding lower bevel gears (805) respectively. Two sliders (810) are threadedly sleeved in the corresponding lifting screws (808).

9. The warp loosening device for an air-jet loom according to claim 8, characterized in that: A fixed base (801) is fixedly connected to the top of the left movable plate (4), and the servo motor (802) is fixedly connected to the top of the fixed base (801). A stabilizing plate (807) is fixedly connected to one side of the right movable plate (4), and the connecting shaft (804) on the right side is rotatably connected to one side of the stabilizing plate (807).

10. The warp loosening device for an air-jet loom according to claim 8, characterized in that: The two sliders (810) are respectively slidably fitted into the corresponding grooves (809).

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