A warp stop device for jacquard machine

Abstract

The utility model relates to the technical field of jacquard machines, and discloses a warp stop device of the jacquard machine. The utility model comprises: a base and a top frame arranged on the base, a frame frame that can be raised and lowered and a lifting mechanism for driving the frame frame to be raised and lowered are arranged on the top frame, a plurality of trigger frames that can move up and down are arranged on the frame, an open hole for embroidery thread to pass through is arranged at the bottom of the trigger frame, photoelectric sensors that can sense each other and can be triggered by the trigger frame are arranged at both ends of the base, and a controller that is used to control the jacquard machine to stop and is controlled by the photoelectric sensor is arranged on the base. The utility model enables the embroidery thread to be simply and conveniently deployed on the warp stop device after being broken and connected.

Description

Technical Field

[0001] The utility model relates to the technical field of jacquard machines, in particular to a warp stop device of the jacquard machine. Background Art

[0002] The jacquard machine is a kind of textile device. When weaving, generally many kinds of embroidery threads are woven into patterned cloth. When the jacquard machine is working, the embroidery thread may occasionally break. Once the embroidery thread breaks, if the jacquard machine is still weaving, the broken part of the embroidery thread cannot be woven any further, resulting in defects in the woven cloth. In order to avoid this, a warp stop device is provided on the existing jacquard machine. When the embroidery thread breaks, the warp stop device is triggered, and then the controller on the warp stop device controls the jacquard machine to stop running. After the broken embroidery thread is connected, the jacquard machine is started again to continue weaving.

[0003] After searching, the related technology (CN213835752U) discloses a warp stop device for a jacquard machine, which relates to the technical field of textile equipment, including a base, a fixed plate, two side plates and multiple yarns. A plurality of fixed plates are fixedly arranged in the middle of the upper surface of the base, and the plurality of fixed plates are distributed in a rectangular array. A through slot is provided in the middle of one side of the fixed plate, and a slide slot is provided in the middle of the inner wall at the bottom of the through slot. A movable plate is movably arranged inside the through slot, and the bottom end of the movable plate extends to the lower end of the slide slot. The utility model sets the first contact piece and the second contact piece. When the yarn is short, the movable plate loses its supporting force and slides downward, causing the first contact piece to touch the second contact piece, so that the controller controls the jacquard machine to stop running, which is conducive to preventing the jacquard machine from continuing to run, resulting in defects in the product, thereby affecting the product yield. At the same time, the broken line position can be found according to the position of the movable plate, which is conducive to conveniently finding the broken warp yarn.

[0004] However, after the embroidery thread is connected, it still needs to pass through the warp stop device. When deploying the broken embroidery thread, the above technical solution needs to pass the broken end through the threading hole before the embroidery thread is connected, so as to avoid the embroidery thread being unable to be placed in the threading hole after the connection. This operation is relatively cumbersome and inconvenient. Therefore, it is necessary to propose a warp stop device for a jacquard machine. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a warp stop device of a jacquard machine which is simpler and more convenient to deploy on the warp stop device after the embroidery thread is connected.

[0006] The utility model is implemented by the following technical scheme: a base and a top frame arranged on the base, the top frame is provided with a liftable frame and a lift mechanism for driving the frame to lift, the frame is provided with a plurality of trigger frames that can move up and down, the bottom of the trigger frame is provided with an open hole for embroidery thread to pass through, both ends of the base are provided with photoelectric sensors that can sense each other and can be triggered by the trigger frame, a controller for controlling the jacquard machine to stop is provided on the base, the photoelectric sensor can transmit a blocking signal to the controller, and then the controller controls the jacquard machine to stop.

[0007] As a further improvement of the above scheme, the lifting mechanism includes a motor fixedly mounted on the top of the top frame, a worm gear is fixedly mounted on the output shaft of the motor, the bottom end of the worm gear passes through the top frame and is rotatably connected to the top frame, a winding rod is rotatably mounted on the top frame, a worm wheel meshing with the worm gear is fixedly sleeved on the winding rod, and two lifting ropes fixedly connected to the frame are wound around the winding rod.

[0008] As a further improvement of the above solution, two sponge foot pads in contact with the base are adhered to the bottom of the frame.

[0009] As a further improvement of the above solution, a rotatable pulley is arranged in the opening of the trigger frame, and an inner arc groove for limiting the embroidery thread is arranged on the pulley.

[0010] As a further improvement of the above solution, two spring pieces expanding toward both sides are arranged at the bottom end of the trigger frame, and the two spring pieces are distributed in an eight-shaped shape.

[0011] As a further improvement of the above solution, a plurality of sliding openings for inserting the trigger racks are arranged on the frame, and the plurality of trigger racks respectively penetrate the corresponding sliding openings and are slidably connected with the corresponding sliding openings.

[0012] As a further improvement of the above solution, a screw rod is arranged at the top end of the trigger frame, and a limit nut is arranged on the threaded sleeve of the screw rod.

[0013] As a further improvement of the above solution, two sliding rods are fixedly installed on both sides of the top frame, and connecting blocks are slidably sleeved on the two sliding rods. The two connecting blocks pass through the top frame and are fixedly connected to the frame.

[0014] As a further improvement of the above solution, two support rollers for supporting the embroidery thread are fixedly mounted on both sides of the top frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The frame can centrally arrange all trigger frames into a whole, so that the lifting mechanism can drive all trigger frames to lift together through the frame, so that the embroidery thread after the connection can be easily returned to the trigger frame. Compared with the existing warp stop device, it does not need to be threaded before wiring. Even if the connection operation is performed first, it can be returned to the trigger mechanism again, so that the reset deployment of the embroidery thread is simpler and more convenient. Even if multiple embroidery threads are broken, they do not need to be deployed one by one after the connection, and the deployment of multiple embroidery threads can be realized synchronously.

[0017] The trigger frame is provided with a hole at the bottom. Compared with setting the threading hole at the center, when the embroidery thread is deployed on the trigger mechanism, there is no need to perform the punching work, and it can be achieved directly by lifting, so that the redeployment of the embroidery thread is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram showing the overall structure of the warp stop device of the jacquard machine of the utility model;

[0019] Figure 2 This is a disassembled structure display diagram of the warp stop device of the jacquard machine of the utility model;

[0020] Figure 3 This is a diagram showing the core mechanism of the warp stop device of the jacquard machine of the utility model;

[0021] Figure 4 This is a display diagram of the trigger frame in the warp stop device of the jacquard machine of the present invention.

[0022] Description of main symbols:

[0023] 1. Base; 2. Top frame; 3. Motor; 4. Worm; 5. Worm wheel; 6. Lifting rope; 7. Frame; 8. Slide; 9. Trigger frame; 10. Through hole; 11. Pulley; 12. Shrapnel; 13. Screw; 14. Limit nut; 15. Photoelectric sensor; 16. Slide rod; 17. Connecting block; 18. Sponge foot pad; 19. Support roller; 20. Controller; 21. Winding rod. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please combine Figures 1 to 4The warp stop device of the jacquard machine of this embodiment includes: a base 1 and a top frame 2 arranged on the base 1, four screw holes distributed in a rectangular shape are arranged on the base 1, two sockets are arranged on the top of the base 1, and the top frame 2 is movably installed in the two sockets. A liftable frame 7 and a lifting mechanism for driving the frame 7 to lift are arranged on the top frame 2, and a plurality of trigger frames 9 that can move up and down are arranged on the frame 7. The bottom of the trigger frame 9 is provided with an open hole 10 for embroidery thread to pass through, and both ends of the base 1 are provided with photoelectric sensors 15 that can sense each other and can be triggered by the trigger frame 9. A controller 20 for controlling the jacquard machine to stop is arranged on the base 1, and the photoelectric sensor 15 can transmit a blocking signal to the controller 20, and then the controller 20 controls the jacquard machine to stop.

[0026] The lifting mechanism includes a motor 3 fixedly mounted on the top of the top frame 2, a worm 4 fixedly mounted on the output shaft of the motor 3, the bottom end of the worm 4 passes through the top frame 2 and is rotatably connected to the top frame 2, a winding rod 21 is rotatably mounted on the top frame 2, a worm wheel 5 meshing with the worm 4 is fixedly sleeved on the winding rod 21, and two suspension ropes 6 fixedly connected to the frame 7 are wound around the winding rod 21.

[0027] Through the above technical solution, the lifting mechanism can not only realize the rapid deployment of the continuous embroidery thread by driving the frame 7 and multiple trigger frames 9 to rise and fall synchronously, but also is more suitable for the synchronous deployment of multiple embroidery threads. The worm 4 and the worm wheel 5 are used as the driving parts of the motor 3 and the winding rod 21, which can not only realize normal transmission, but also realize the limited self-locking of the winding rod 21 when the motor 3 is powered off.

[0028] Two sponge pads 18 in contact with the base 1 are adhered to the bottom of the frame 7 .

[0029] Through the above technical solution, the sponge foot pad 18 can reduce the impact generated when the frame 7 contacts the base 1 after falling, and play a buffering and protective role for both.

[0030] A rotatable pulley 11 is arranged in the through opening 10 of the trigger frame 9, and an inner arc groove for limiting the embroidery thread is arranged on the pulley 11.

[0031] Through the above technical solution, the pulley 11 can reduce the wear of the embroidery thread when passing through the hole 10 at the bottom of the trigger frame 9.

[0032] The bottom end of the trigger frame 9 is provided with two spring pieces 12 extending toward both sides, and the two spring pieces 12 are distributed in an eight-shaped shape.

[0033] Through the above technical solution, the spring piece 12 can increase the wiring diameter of the hole 10, so that the embroidery thread can enter the hole 10 more easily, and the plasticity of the spring piece 12 will not limit the two trigger frames 9 from getting closer, so that the trigger frames 9 can adjust the distance between each other by inserting different sliding openings 8, so as to better adapt to the spacing of the embroidery thread.

[0034] The frame 7 is provided with a plurality of sliding openings 8 for inserting the trigger frames 9 , and the plurality of trigger frames 9 respectively penetrate through the corresponding sliding openings 8 and are slidably connected with the corresponding sliding openings 8 .

[0035] Through the above technical solution, the number of slides 8 is more than the trigger racks 9, and there is an empty slide 8 between each of the trigger racks 9, so that the spacing or number of the trigger racks 9 can be adjusted by inserting different slides 8, thereby better adapting to the spacing and number of embroidery threads.

[0036] A screw rod 13 is disposed at the top end of the trigger frame 9 , and a limit nut 14 is threadedly sleeved on the screw rod 13 .

[0037] Through the above technical solution, the limit nut 14 serves as a limiting mechanism of the trigger frame 9, which can prevent the trigger frame 9 from detaching from the frame 7. After the limit nut 14 is unscrewed, the trigger frame 9 can be removed from the frame 7, thereby facilitating the adjustment of the position and spacing of the trigger frame 9.

[0038] Two sliding rods 16 are fixedly installed on both sides of the top frame 2, and connecting blocks 17 are slidably sleeved on the two sliding rods 16. The two connecting blocks 17 pass through the top frame 2 and are fixedly connected to the frame 7. Long strips are provided on both sides of the top frame 2, and the two connecting blocks 17 pass through the corresponding long strips respectively.

[0039] Through the above technical solution, the slide rod 16 cooperates with the connecting block 17 to improve the stability of the frame 7 without affecting the upgrade.

[0040] Two support rollers 19 for supporting embroidery threads are fixedly mounted on both sides of the top frame 2.

[0041] Through the above technical solution, the support roller 19 can support the embroidery thread in the area of ​​the trigger frame 9 to reduce the pressure caused by the trigger frame 9 on the embroidery thread as a whole, so that it is not easy to break and sag after bearing the weight of the trigger frame 9.

[0042] The implementation principle of the warp stop device of a jacquard machine in the embodiment of the present application is:

[0043] Step 1: During the weaving process, each embroidery thread passes through the hole 10 below the corresponding trigger frame 9;

[0044] Step 2: When the embroidery thread is being woven, it will be in a taut state. At this time, the trigger frame 9 is hung on the embroidery thread. When one of the embroidery threads breaks, the embroidery thread limitation is lost, and the corresponding trigger frame 9 starts to fall and is between the two photoelectric sensors 15 and cuts off the induction between the two. At this time, the trigger controller 20 turns off the jacquard machine.

[0045] The third step: when the broken embroidery thread is to be connected, the motor 3 is started, and the motor 3 drives the worm wheel 5 and the winding rod 21 to rotate through the worm 4, and drives the frame 7 and multiple trigger frames 9 to rise through the winding rope 6. When the embroidery thread is connected, the frame 7 and the trigger frame 9 are driven down again, so that the embroidery thread enters the hole 10 at the bottom of the trigger frame 9 again, and the taut embroidery thread makes the trigger frame 9 suspended again, so that the connected embroidery thread can be conveniently arranged in the warp stop device.

[0046] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A warp stop device for a jacquard machine, characterized in that: include: A base (1) and a top frame (2) arranged on the base (1); a liftable frame (7) and a lift mechanism for driving the frame (7) to lift and lower are arranged on the top frame (2); a plurality of trigger frames (9) that can move up and down are arranged on the frame (7); an open hole (10) for embroidery thread to pass through is arranged at the bottom of the trigger frame (9); photoelectric sensors (15) that can sense each other and can be triggered by the trigger frame (9) are arranged at both ends of the base (1); a controller (20) for controlling the jacquard machine to stop is arranged on the base (1); the photoelectric sensor (15) can transmit a blocking signal to the controller (20), and the controller (20) then controls the jacquard machine to stop.

2. The warp stop device of the jacquard machine according to claim 1, characterized in that: The lifting mechanism comprises a motor (3) fixedly mounted on the top of the top frame (2); a worm (4) is fixedly mounted on the output shaft of the motor (3); the bottom end of the worm (4) passes through the top frame (2) and is rotatably connected to the top frame (2); a winding rod (21) is rotatably mounted on the top frame (2); a worm wheel (5) meshing with the worm (4) is fixedly sleeved on the winding rod (21); and two suspension ropes (6) fixedly connected to the frame (7) are wound around the winding rod (21).

3. The warp stop device of the jacquard machine according to claim 1, characterized in that: Two sponge foot pads (18) in contact with the base (1) are adhered to the bottom of the frame (7).

4. The warp stop device of the jacquard machine according to claim 1, characterized in that: A rotatable pulley (11) is arranged in the through opening (10) of the trigger frame (9), and an inner arc groove for limiting the embroidery thread is arranged on the pulley (11).

5. The warp stop device of the jacquard machine according to claim 1, characterized in that: The bottom end of the trigger frame (9) is provided with two spring pieces (12) extending toward both sides, and the two spring pieces (12) are distributed in an eight-shaped shape.

6. The warp stop device of the jacquard machine according to claim 1, characterized in that: The frame (7) is provided with a plurality of sliding openings (8) for inserting the trigger frames (9), and the plurality of trigger frames (9) respectively penetrate the corresponding sliding openings (8) and are slidably connected with the corresponding sliding openings (8).

7. The warp stop device of the jacquard machine according to claim 1, characterized in that: A screw rod (13) is arranged at the top end of the trigger frame (9), and a limiting nut (14) is threadedly sleeved on the screw rod (13).

8. The warp stop device of the jacquard machine according to claim 1, characterized in that: Two sliding rods (16) are fixedly mounted on both sides of the top frame (2), and connecting blocks (17) are slidably sleeved on the two sliding rods (16). The two connecting blocks (17) penetrate the top frame (2) and are fixedly connected to the frame (7).

9. The warp stop device of the jacquard machine according to claim 1, characterized in that: Two support rollers (19) for supporting embroidery threads are fixedly mounted on both sides of the top frame (2).

Images