Tension-adjustable yarn feeding nozzle of circular knitting machine

Abstract

The utility model relates to a yarn feeding nozzle, in particular to a tension-adjustable yarn feeding nozzle of a circular knitting machine, which comprises a mounting block, an n-shaped guide rail, a lifting slider, a mounting frame and the like, one end of the mounting block is connected with a frame of the circular knitting machine, the other end of the mounting block is provided with the n-shaped guide rail, the lifting slider is slidably connected onto the n-shaped guide rail, and the mounting frame is mounted on the lifting slider. Yarn feeding nozzles are symmetrically arranged on the mounting frame, each yarn feeding nozzle comprises a rotating block rotationally mounted on the mounting frame and a yarn guide plate slidably arranged on one side of the rotating block, and a u-shaped opening is formed in the side, opposite to the rotating block, of the yarn guide plate. The height of the yarn feeding nozzle can be accurately adjusted through the vertical movement of the lifting sliding block along the n-shaped guide rail, so that the position of a knitting needle is matched, and the introduction angle and tension distribution of yarn are optimized; meanwhile, the horizontal angle of the yarn feeding nozzle is adjusted through rotation of the rotating block, and the requirements for the leading-in directions of different yarns are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a yarn feeding nozzle, especially a tension-adjustable circular knitting machine yarn feeding nozzle. BACKGROUND

[0002] In modern textile industry, as the core equipment of knitting industry, the performance of the yarn feeding system of the circular knitting machine directly affects the quality and production efficiency of the fabric. As the key component of the yarn feeding system, the yarn feeding nozzle is responsible for guiding the yarn and adjusting its tension to ensure stable delivery of the yarn during knitting.

[0003] However, the traditional yarn feeding nozzle usually adopts a fixed design, which is difficult to adapt to the requirements of different yarn types and tensions, leading to uneven yarn tension and problems such as yarn breakage, slackness, or fabric defects. In addition, in the production mode of multiple varieties and small batches, it is increasingly urgent to quickly adjust the yarn feeding nozzle to match the requirements of different yarn characteristics and needle positions.

[0004] Therefore, it is necessary to design a circular knitting machine yarn feeding nozzle that can efficiently adjust the tension of the yarn feeding nozzle to match different yarn characteristics and needle positions. SUMMARY

[0005] In order to overcome the shortcomings of the existing technology that the yarn feeding nozzle of the circular knitting machine is fixed in design, leading to uneven yarn tension and difficulty in adapting to the tension requirements of different yarn types, the purpose of the utility model is to provide a tension-adjustable circular knitting machine yarn feeding nozzle.

[0006] The technical scheme is: a tension-adjustable circular knitting machine yarn feeding nozzle, comprising a mounting block, an n-shaped guide rail, a lifting slide block, a mounting frame, a rotating block, and a wire guide plate. One end of the mounting block is connected to the rack of the circular knitting machine, and the other end is provided with the n-shaped guide rail. The lifting slide block is connected to the n-shaped guide rail through sliding. The mounting frame is installed on the lifting slide block. The yarn feeding nozzle is symmetrically arranged on the mounting frame. The yarn feeding nozzle comprises a rotating block rotatably installed on the mounting frame and a wire guide plate slidably arranged on one side of the rotating block. A U-shaped opening is formed on the side of the wire guide plate away from the rotating block. The yarn passes through the U-shaped opening of the wire guide plate.

[0007] As an improvement of the above-mentioned scheme, a locking block separably matched with the lifting slide block is threadedly connected to the lifting slide block through a first locking screw. The lifting slide block and the locking block are symmetrically arranged on both sides of the n-shaped guide rail. The first locking screw threadedly passes through the mounting frame, the lifting slide block, and the locking block in sequence.

[0008] As an improvement of the above-mentioned scheme, a second locking screw is threadedly connected to the mounting frame. The second locking screw penetrates the rotating block. The second locking screw is used to fix the rotating block.

[0009] As an improvement of the above-mentioned scheme, a large guide wheel and a small guide wheel are rotatably arranged in the U-shaped opening of the wire guide plate. The large guide wheel and the small guide wheel are arranged in a staggered manner.

[0010] As the improvement of the above scheme, a "T" shaped sliding groove is arranged on the side of the rotating block facing the wire guide plate, a T-shaped sliding block is arranged in the "T" shaped sliding groove, the wire guide plate is fixedly connected with the T-shaped sliding block, and a compression spring is arranged between the T-shaped sliding block and the inner wall of the "T" shaped sliding groove, and the compression spring is used to drive the T-shaped sliding block to be arranged at the bottom of the "T" shaped sliding groove.

[0011] As the improvement of the above scheme, a scale is arranged on the side of the T-shaped sliding block facing the wire guide plate.

[0012] As the improvement of the above scheme, a T-shaped block is arranged at the bottom of the wire guide plate, a horizontal shaft is arranged on the T-shaped block, a supporting frame is rotatably arranged on the horizontal shaft, and a torsion spring is arranged between the end of the horizontal shaft and the outer wall of the supporting frame.

[0013] The beneficial effects of the present application are as follows: 1. The height of the yarn feeding nozzle can be accurately adjusted through the vertical movement of the lifting sliding block along the n-shaped guide rail, so that the position of the needle is matched, the introduction angle and tension distribution of the yarn are optimized, and the horizontal angle of the yarn feeding nozzle is adjusted through the rotation of the rotating block, so that the introduction direction requirement of different yarns is met. The double adjustment of height and angle significantly improves the adaptability of the yarn feeding nozzle to different yarn characteristics and process requirements, and effectively avoids problems such as yarn breakage, relaxation or fabric defects caused by uneven yarn tension.

[0014] 2. The up-down movement of the T-shaped sliding block in the "T" shaped sliding groove, combined with the elastic force of the compression spring, realizes the fine adjustment of the height of the wire guide plate. This design not only meets the precise control requirement of the height of the yarn feeding nozzle for special process, but also quickly resets when needed, ensuring the stability of the yarn conveying process.

[0015] 3. The large guide wheel and the small guide wheel arranged in the U-shaped opening of the wire guide plate are arranged in an up-down staggered manner, forming an "S" shaped yarn path, and generating initial tension through frictional resistance. This structure helps to ensure the uniformity of yarn tension, thereby reducing the wear between the yarn and the guide wheel and prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0017] Figure 2 It is a partial three-dimensional structure schematic diagram of the yarn feeding nozzle of the present application.

[0018] Figure 3 It is a three-dimensional structure schematic diagram of the lifting sliding block, the locking block and the first locking screw of the present application.

[0019] Figure 4This is a three-dimensional structural diagram of the mounting bracket, rotating block, guide plate, and T-shaped sliding block of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the T-block, support frame, and torsion spring of this utility model.

[0021] The labels in the diagram are as follows: 1. Mounting block, 2. N-shaped guide rail, 3. Lifting slider, 4. Locking block, 5. First locking screw, 6. Mounting bracket, 7. Rotating block, 71. Guide plate, 72. Second locking screw, 8. Large guide wheel, 9. Small guide wheel, 10. T-shaped sliding block, 11. Compression spring, 12. T-shaped block, 13. Support bracket, 14. Torsion spring. Detailed Implementation

[0022] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0023] Example: A tension-adjustable yarn feeder for a large circular knitting machine, such as... Figures 1-5 As shown, the device includes a mounting block 1, an n-shaped guide rail 2, a lifting slider 3, a mounting frame 6, a rotating block 7, and a guide plate 71. One end of the mounting block 1 is connected to the frame of the circular knitting machine, and the other end is fitted with the n-shaped guide rail 2. The lifting slider 3 is slidably connected to the n-shaped guide rail 2. The mounting frame 6 is mounted on the lifting slider 3. The mounting frame 6 has yarn feeders arranged symmetrically in the transverse direction. The height of the yarn feeders is adjusted by adjusting the height of the lifting slider 3, thereby adjusting the yarn tension. The yarn feeder includes a rotating block 7 rotatably mounted on the mounting frame 6 and a guide plate 71 slidably disposed on one side of the rotating block 7. The rotating block 7 has a triangular structure. A second guide plate 71 is threadedly connected to the mounting frame 6. A locking screw 72 passes through the rotating block 7 and is used to fix the rotating block 7. After rotating the rotating block 7, the rotating block 7 can be fixed by tightening the second locking screw 72, thereby keeping the rotating block 7 stable. A U-shaped opening is provided on the side of the guide plate 71 facing away from the rotating block 7. The yarn passes through the U-shaped opening of the guide plate 71. A large guide wheel 8 and a small guide wheel 9 are rotatably arranged inside the U-shaped opening of the guide plate 71. The large guide wheel 8 and the small guide wheel 9 are staggered vertically. After the yarn passes through the large guide wheel 8 and the small guide wheel 9, it presents an "S" shaped path design, thereby increasing the yarn friction resistance and realizing adjustable tension.

[0024] like Figure 2 and Figure 3As shown, the lifting slider 3 is threadedly connected with the locking block 4 separable with the lifting slider 3 through the first locking screw 5, the lifting slider 3 and the locking block 4 are symmetrically arranged on both sides of the n-shaped guide rail 2, the first locking screw 5 is threadedly passed through the mounting frame 6, the lifting slider 3 and the locking block 4 in sequence, the mounting frame 6 and the lifting slider 3 are stably and reliably connected through the threadedly connecting mode of the first locking screw 5 with the mounting frame 6, the lifting slider 3 and the locking block 4, at the same time, the lifting slider 3 and the locking block 4 are effectively fixed on both sides of the n-shaped guide rail 2, thereby ensuring the stability of the height position of the lifting slider 3 on the n-shaped guide rail 2.

[0025] In use, the yarn is led out from the external creel, enters through the U-shaped opening of the guide plate 71, and forms an "S" shaped path by passing around the large guide wheel 8 and the small guide wheel 9 to generate a preliminary tension through frictional resistance; when it is necessary to adjust the tension of the feed nozzle, the vertical height of the feed nozzle is adjusted by sliding the lifting slider 3 up and down along the n-shaped guide rail 2 to match the position of the needle; in addition, the horizontal angle of the feed nozzle is adjusted by rotating the rotating block 7 to adapt to different yarn leading directions; in this way, the height and horizontal angle of the feed nozzle are adjusted to realize the tension adjustment of the feed nozzle to match the tension of different yarns.

[0026] As shown in Figure 4 , the rotating block 7 is provided with a "convex" shaped sliding groove on the side facing the guide plate 71, a T-shaped sliding block 10 is slidingly arranged in the "convex" shaped sliding groove, the guide plate 71 is fixedly connected with the T-shaped sliding block 10, a compression spring 11 is arranged between the T-shaped sliding block 10 and the inner wall of the "convex" shaped sliding groove, the compression spring 11 is used to drive the T-shaped sliding block 10 to be placed at the bottom end inside the "convex" shaped sliding groove, and the initial state of the compression spring 11 is shown in Figure 4 , the height of the single guide plate 71 is individually adjusted by lifting the guide plate 71 through the lifting of the T-shaped sliding block 10.

[0027] As shown in Figure 4 , the T-shaped sliding block 10 is provided with a scale on the side facing the guide plate 71, the scale makes the adjustment process visualized, which facilitates the manual accurate setting of the position of the guide plate 71 and reduces the human error.

[0028] As shown in Figure 1 and Figure 5 , the guide plate 71 is provided with a T-shaped block 12 at the bottom, the T-shaped block 12 is provided with a horizontal shaft, a support frame 13 is rotatably installed on the horizontal shaft, the support frame 13 is used to provide support for the guide plate 71, so that the guide plate 71 is kept at a stable height position, the bottom of the support frame 13 is provided with a moving wheel, a torsion spring 14 is arranged between the end of the horizontal shaft and the outer wall of the support frame 13, and the arrangement of the torsion spring 14 facilitates the resetting of the support frame 13.

[0029] Further, the T-shaped sliding block 10 moves up and down along the "convex" shaped sliding groove of the rotating block 7 to adjust the height of the wire plate 71, and the support frame 13 limits the wire plate 71 to keep the wire plate 71 at a stable height; when the T-shaped sliding block 10 and the wire plate 71 need to be reset, the support frame 13 is turned away from the support plane, and under the elastic force of the torsion spring 14, the support frame 13 rotates upward to remove the abutting limit of the wire plate 71, and the compression spring 11 drives the T-shaped sliding block 10 and the wire plate 71 to move downward to reset.

[0030] The above embodiments are only preferred embodiments of the utility model, and are not used to limit the utility model implementation range, so equivalent changes made according to the contents of the utility model claims should be included in the utility model claim range.

Claims

1. A tension-adjustable feed nozzle for a circular knitting machine, comprising a mounting block (1) and an n-shaped guide rail (2), the mounting block (1) being connected to the frame of the circular knitting machine at one end and having the n-shaped guide rail (2) mounted at the other end, characterized in that, The device also comprises a lifting slider (3), a mounting frame (6), a rotating block (7) and a wire guide plate (71), the lifting slider (3) is slidably connected to the n-shaped guide rail (2), the mounting frame (6) is mounted on the lifting slider (3), symmetrically arranged yarn feeding nozzles are arranged on the mounting frame (6), the yarn feeding nozzles comprise the rotating block (7) rotatably mounted on the mounting frame (6) and the wire guide plate (71) slidably arranged on one side of the rotating block (7), a u-shaped opening is formed on the side of the wire guide plate (71) away from the rotating block (7), and the yarn passes through the u-shaped opening of the wire guide plate (71).

2. A tension adjustable feed nose for a circular knitting machine as claimed in claim 1, characterized in that The lifting slider (3) is threadedly connected with a locking block (4) separably cooperating with the lifting slider (3) through a first locking screw (5), the lifting slider (3) and the locking block (4) are symmetrically arranged on both sides of the n-shaped guide rail (2), and the first locking screw (5) threadedly penetrates the mounting frame (6), the lifting slider (3) and the locking block (4) in sequence.

3. A tension adjustable feed nose for a circular knitting machine as claimed in claim 2, characterized in that The mounting frame (6) is threadedly connected with a second locking screw (72), the second locking screw (72) penetrates the rotating block (7), and the second locking screw (72) is used for fixing the rotating block (7).

4. A tension adjustable feed nose for a circular knitting machine as claimed in claim 3, characterized in that The u-shaped opening of the wire guide plate (71) is rotatably provided with a large guide wheel (8) and a small guide wheel (9), and the large guide wheel (8) and the small guide wheel (9) are arranged in a staggered manner.

5. A tension adjustable feed nose for a circular knitting machine as claimed in claim 4, characterised in that, The side of the rotating block (7) facing the wire guide plate (71) is provided with a "convex”-shaped sliding groove, a T-shaped sliding block (10) is slidably arranged in the "convex”-shaped sliding groove, the wire guide plate (71) is fixedly connected with the T-shaped sliding block (10), a compression spring (11) is arranged between the T-shaped sliding block (10) and the inner wall of the "convex”-shaped sliding groove, and the compression spring (11) is used for driving the T-shaped sliding block (10) to be arranged at the bottom end of the inner side of the "convex”-shaped sliding groove.

6. A tension adjustable feed nose for a circular knitting machine as claimed in claim 5, characterized in that The side of the T-shaped sliding block (10) facing the wire guide plate (71) is provided with a scale.

7. A tension adjustable feed nose for a circular knitting machine as claimed in claim 6, characterized in that The bottom of the wire guide plate (71) is provided with a T-shaped block (12), a horizontal shaft is arranged on the T-shaped block (12), a support frame (13) is rotatably mounted on the horizontal shaft, and a torsion spring (14) is arranged between the end of the horizontal shaft and the outer wall of the support frame (13).

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