A yarn feeding device for a jacquard machine

Abstract

This utility model provides a yarn feeding device for a jacquard machine, comprising: a base, a conveying structure on the top of the base, and an adjusting component on the right side of the conveying structure; the conveying structure includes a motor located at the bottom of the base, and a gearbox located at the output end of the motor and at the top of the base. This utility model provides a yarn feeding device for a jacquard machine that, by incorporating an electrically controlled telescopic rod, a tension rod, a tension spring, and a sliding support frame, can adjust the tension of the yarn at different speeds, thus better suiting the use of the yarn feeding device. Simultaneously, by relying on the pressure of the yarn to maintain the length of the tension spring, when the yarn breaks, the tension spring rebounds, causing the tension rod to contact the yarn breakage trigger block, preventing continuous useless rotation after a yarn breakage, thereby improving the efficiency of the jacquard machine's yarn feeding device.

Description

Technical Field

[0001] This utility model relates to the field of jacquard machines, and more particularly to a yarn feeding device for a jacquard machine. Background Technology

[0002] A jacquard machine is a mechanical device used for weaving fabrics with complex patterns. It creates patterns by controlling the interlacing of warp and weft yarns. Traditionally, it used perforated cards, but modern jacquard machines rely on electronic programming for high-precision design. Widely used in clothing, home décor, and arts and crafts, it is a key piece of equipment in the textile industry that combines art and technology.

[0003] The yarn feeding device of a jacquard machine is the core component that ensures the precise supply of warp and weft yarns. Its appearance and structure vary depending on the type: traditional mechanical warp yarn feeding devices use warp beams, tension bars, and worm gears for adjustment, with counterweights or springs. They are robust in structure and have a strong mechanical feel and complex structure. In contrast, modern electronic jacquard machines have a high degree of integration, mainly using servo motors, sensors, and CNC panels, and have a simple and efficient appearance.

[0004] Existing jacquard machines typically have yarn feeding devices that allow for adjustable yarn feeding speed, usually achieved through an additional gearbox or a speed-regulating motor. However, because the guide rollers controlling yarn tension are fixed, these devices require individual adjustment of the guide rollers after each speed adjustment, thus affecting the overall efficiency of the yarn feeding system.

[0005] Therefore, it is necessary to provide a yarn feeding device for a jacquard machine to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a yarn feeding device for a jacquard machine, which solves the problem that some existing yarn feeding devices are not convenient for adjusting the tension of yarns at different speeds during use.

[0007] To solve the above-mentioned technical problems, this utility model provides a yarn feeding device for a jacquard machine, comprising: a base, a conveying structure provided on the top of the base, and an adjustment component provided on the right side of the conveying structure;

[0008] The conveying structure includes a motor disposed at the bottom of the base, a gearbox disposed at the output end of the motor and at the top of the base, a first pulley disposed at the top of the gearbox, a belt body sleeved on the circumferential side of the first pulley, a second pulley disposed on the inner side of the belt body, and a yarn outlet support rod disposed at the bottom of the second pulley.

[0009] The adjustment assembly includes a sliding support frame disposed on the right side of the yarn feed support rod. A guide rod is provided laterally on the inner side of the sliding support frame. A tension rod is provided on the circumferential side of the guide rod, which can slide left and right along its length. A tension spring is provided on the circumferential side of the guide rod and on the left side of the tension rod. The left end of the tension spring is fixedly connected to the inner side of the sliding support frame.

[0010] Preferably, an electrically controlled telescopic rod is provided on the inner side of the sliding support frame and on the right side of the tension rod, and the output end on the left side of the electrically controlled telescopic rod is in contact with the right side of the tension rod.

[0011] Preferably, a wire breakage trigger block is provided on the right side of the inner side of the sliding support frame, and a limit block is provided on the peripheral side of the tensioning rod.

[0012] Preferably, the adjusting assembly further includes a vertical plate disposed on the top right side of the yarn outlet support rod, the top of the vertical plate is provided with a yarn inlet, the right side of the vertical plate is provided with a yarn guide roller, and the right side of the vertical plate and below the yarn guide roller is provided with a yarn guide nozzle, which is located above the sliding support frame.

[0013] Preferably, a yarn guide rod is provided on the right side of the bottom of the yarn outlet support rod and below the tension rod, and a yarn roller is provided at the bottom end of the second pulley and at the bottom of the yarn outlet support rod, with a yarn guide wheel at the bottom of the yarn roller.

[0014] Preferably, a bracket is provided on the left side of the bottom of the yarn outlet support rod, and a first yarn outlet nozzle and a second yarn outlet nozzle are provided at the bottom of the bracket.

[0015] Compared with related technologies, the yarn feeding device for a jacquard machine provided by this utility model has the following beneficial effects:

[0016] This utility model provides a yarn feeding device for a jacquard machine. By setting up an electrically controlled telescopic rod, a tension rod, a tension spring, and a sliding support frame, the tension of the yarn can be adjusted at different speeds, thus making it more suitable for use in yarn feeding devices. At the same time, by relying on the pressure of the yarn to maintain the length of the tension spring, when the yarn breaks, the tension spring rebounds and causes the tension rod to contact the yarn breakage trigger block, which can prevent continuous useless rotation after the yarn breaks. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of a yarn feeding device for a jacquard machine provided by this utility model;

[0018] Figure 2 This is a structural schematic diagram showing the front view of the base section;

[0019] Figure 3 This is a schematic diagram of the yarn feed support rod.

[0020] The following are the labeling elements in the diagram: 1. Base; 2. Conveying structure; 21. Motor; 22. Gearbox; 23. First pulley; 24. Belt body; 25. Second pulley; 26. Yarn outlet support rod; 3. Adjustment assembly; 31. Sliding support frame; 32. Guide rod; 33. Tensioning rod; 34. Tensioning spring; 35. Electrically controlled telescopic rod; 36. Yarn breakage trigger block; 37. Limiting block; 38. Vertical plate; 381. Yarn inlet; 382. Yarn guide roller; 383. Yarn guide nozzle; 384. Yarn guide rod; 39. Thread roller; 4. Yarn guide wheel; 5. First yarn outlet nozzle; 6. Second yarn outlet nozzle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 and Figure 3 A yarn feeding device for a jacquard machine includes: a base 1, a conveying structure 2 on the top of the base 1, and an adjusting component 3 on the right side of the conveying structure 2.

[0023] The conveying structure 2 includes a motor 21 located at the bottom of the base 1, a gearbox 22 located at the top of the output end of the motor 21 and at the top of the base 1, a first pulley 23 located at the top of the gearbox 22, a belt body 24 sleeved on the periphery of the first pulley 23, a second pulley 25 located on the inner side of the belt body 24, and a yarn outlet support rod 26 located at the bottom of the second pulley 25.

[0024] The speed of the silk thread can be adjusted by setting up a gearbox 22.

[0025] The adjusting assembly 3 includes a sliding support frame 31 located on the right side of the yarn feed support rod 26. A guide rod 32 is laterally arranged on the inner side of the sliding support frame 31. A tension rod 33 is arranged on the circumferential side of the guide rod 32, which can slide left and right along its length. A tension spring 34 is arranged on the circumferential side of the guide rod 32 and on the left side of the tension rod 33. The left end of the tension spring 34 is fixedly connected to the inner side of the sliding support frame 31.

[0026] When the yarn feed rate increases, the required tension of the yarn is greater. Therefore, the output end of the electrically controlled telescopic rod 35 can be extended in advance, which pushes the tension rod 33 to slide a small distance to the left inside the sliding support frame 31, so that the tension spring 34 is slightly compressed. At this time, the yarn can be passed through the right side of the tension rod 33. Due to the presence of the tension rod 33, the travel of the yarn is lengthened, thereby increasing the yarn tension. Conversely, when the yarn feed rate decreases, the required tension of the yarn is smaller, so the output end of the electrically controlled telescopic rod 35 can be extended a longer distance. Since the yarn conveyor itself has a certain strength, after the initial position is adjusted, the output end of the electrically controlled telescopic rod 35 can be retracted, and the length of the tension spring 34 is maintained by the pressure of the yarn. When the yarn breaks, the tension spring 34 rebounds, causing the tension rod 33 to contact the yarn breakage trigger block 36, stopping the equipment for maintenance.

[0027] An electrically controlled telescopic rod 35 is provided on the inner side of the sliding support frame 31 and on the right side of the tension rod 33. The output end on the left side of the electrically controlled telescopic rod 35 is in contact with the right side of the tension rod 33.

[0028] A wire break trigger block 36 is provided on the right side of the inner side of the sliding support frame 31, and a limit block 37 is provided on the peripheral side of the tensioning rod 33.

[0029] The adjustment assembly 3 also includes a vertical plate 38 located on the top right side of the yarn outlet support rod 26. A yarn inlet 381 is located at the top of the vertical plate 38, a yarn guide roller 382 is located on the right side of the vertical plate 38, and a yarn guide nozzle 383 is located on the right side of the vertical plate 38 and below the yarn guide roller 382. The yarn guide nozzle 383 is located above the sliding support frame 31.

[0030] The yarn will first pass through the top of the yarn inlet 381, the right side of the yarn guide roller 382, ​​the top of the yarn guide nozzle 383, the right side of the tension rod 33 and the right side of the yarn guide rod 384, and finally wrap around the periphery of the yarn roller 39.

[0031] A yarn guide rod 384 is provided on the right side of the bottom of the yarn outlet support rod 26 and below the tension rod 33. A yarn roller 39 is provided at the bottom end of the second pulley 25 and at the bottom of the yarn outlet support rod 26. A yarn guide wheel 4 is provided at the bottom of the yarn roller 39.

[0032] A bracket is provided on the left side of the bottom of the yarn outlet support rod 26, and a first yarn outlet nozzle 5 and a second yarn outlet nozzle 6 are provided at the bottom of the bracket.

[0033] The working principle of the yarn feeding device for a jacquard machine provided by this utility model is as follows:

[0034] Step 1: During use, the winding speed of the yarn can be adjusted by adjusting the output rate of the gearbox 22. When the yarn feed rate is increased, the yarn requires greater tension. Therefore, the output end of the electric telescopic rod 35 can be extended in advance, which will push the tension rod 33 to slide a small distance to the left inside the sliding support frame 31, so that the tension spring 34 is slightly compressed. At this time, the yarn can be passed through the right side of the tension rod 33. Due to the presence of the tension rod 33, the yarn travel is lengthened, thereby increasing the yarn tension. Conversely, when the yarn feed rate is slowed down, the yarn requires less tension, and the output end of the electric telescopic rod 35 can be extended a longer distance.

[0035] Step 2: Since the wire conveyor itself has a certain strength, after adjusting the initial position, the output end of the electrically controlled telescopic rod 35 can be retracted. The tension spring 34 is maintained by the pressure of the wire. When the wire breaks, the tension spring 34 rebounds and causes the tension rod 33 to contact the wire break trigger block 36, so that the equipment can be stopped for maintenance.

[0036] Compared with related technologies, the yarn feeding device for a jacquard machine provided by this utility model has the following beneficial effects:

[0037] By incorporating an electrically controlled telescopic rod 35, a tension rod 33, a tension spring 34, and a sliding support frame 31, the tension of the yarn can be adjusted at different speeds, thus making it more suitable for use in yarn feeding devices. At the same time, by relying on the pressure of the yarn to maintain the length of the tension spring 34, when the yarn breaks, the tension spring 34 rebounds, causing the tension rod 33 to contact the yarn breakage trigger block 36, which can prevent continuous useless rotation after yarn breakage.

[0038] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A yarn feeding device for a jacquard machine, characterized in that, include: A base (1) is provided with a conveying structure (2) on the top of the base (1), and an adjustment component (3) is provided on the right side of the conveying structure (2). The conveying structure (2) includes a motor (21) disposed at the bottom of the base (1). A gearbox (22) is disposed at the top output end of the motor (21) and at the top of the base (1). A first pulley (23) is disposed at the top of the gearbox (22). A belt body (24) is sleeved on the circumferential side of the first pulley (23). A second pulley (25) is disposed on the inner side of the belt body (24). A yarn outlet support rod (26) is disposed at the bottom of the second pulley (25). The adjustment component (3) includes a sliding support frame (31) disposed on the right side of the yarn feed support rod (26). A guide rod (32) is provided laterally on the inner side of the sliding support frame (31). A tension rod (33) is provided on the circumferential side of the guide rod (32) and can slide left and right along its length direction. A tension spring (34) is provided on the circumferential side of the guide rod (32) and on the left side of the tension rod (33). The left end of the tension spring (34) is fixedly connected to the inner side of the sliding support frame (31). An electrically controlled telescopic rod (35) is provided on the inner side of the sliding support frame (31) and on the right side of the tension rod (33). The output end on the left side of the electrically controlled telescopic rod (35) is in contact with the right side of the tension rod (33). A wire breakage trigger block (36) is provided on the right side of the inner side of the sliding support frame (31), and a limit block (37) is provided on the circumferential side of the tension rod (33).

2. The yarn feeding device of a jacquard machine according to claim 1, characterized in that, The adjustment assembly (3) also includes a vertical plate (38) disposed on the top right side of the yarn outlet support rod (26). A yarn inlet (381) is disposed on the top of the vertical plate (38), a yarn guide roller (382) is disposed on the right side of the vertical plate (38), and a yarn guide nozzle (383) is disposed on the right side of the vertical plate (38) and below the yarn guide roller (382). The yarn guide nozzle (383) is located above the sliding support frame (31).

3. The yarn feeding device of a jacquard machine according to claim 1, characterized in that, A yarn guide rod (384) is provided on the right side of the bottom of the yarn outlet support rod (26) and below the tension rod (33). A yarn roller (39) is provided at the bottom end of the second pulley (25) and at the bottom of the yarn outlet support rod (26). A yarn guide wheel (4) is provided at the bottom of the yarn roller (39).

4. The yarn feeding device of a jacquard machine according to claim 1, characterized in that, A bracket is provided on the left side of the bottom of the yarn outlet support rod (26), and a first yarn outlet nozzle (5) and a second yarn outlet nozzle (6) are provided at the bottom of the bracket.

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