Circular knitting machine capable of avoiding yarn winding and used for knitted fabric preparation

Abstract

The utility model discloses a circular knitting machine for knitted fabric preparation capable of avoiding yarn winding, and relates to the technical field of textile equipment, the circular knitting machine comprises a circular knitting machine body, a plurality of connecting frames are arranged on the circumference of the top of the circular knitting machine body, and two yarn bobbins are movably connected to the upper portions of the connecting frames; and the anti-winding module is located at the top of the connecting frame, the anti-winding module is located in front of the yarn cylinder, the anti-winding module comprises an extension cylinder, an electric driving rod is arranged in the extension cylinder, and the driving end of the electric driving rod is fixedly connected to the inner wall of one side of the extension cylinder. According to the circular knitting machine capable of avoiding yarn winding and used for preparing the knitted fabric, the contact area and position of the yarn conveying cylinder and the yarn can be adjusted according to the thickness and position changes of the yarn, and winding of the yarn conveying cylinder and the yarn due to too small friction force can be avoided; meanwhile, the tension can be adjusted to adapt to the optimal tension required by different yarns, and the effect that the yarns are loosened and wound is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of textile equipment, in particular to a circular knitting machine for preparing knitted fabrics which can avoid yarn entanglement. Background Art

[0002] The circular knitting machine is a mechanical equipment used for knitting fabrics. It is used to produce semi-finished fabrics such as underwear or sportswear, sweatshirts and T-shirts for daily wear. It has high speed, high output, fast pattern changes, good fabric quality, few processes and strong product adaptability.

[0003] The existing circular knitting machines for knitted fabric preparation have fixed yarn placement and delivery positions. When knitting different yarns, the yarns may be sometimes loose and sometimes tight, causing yarn entanglement or breakage, increasing the downtime for combing and replacement, and reducing the quality of the knitted fabric, resulting in yarn waste. Utility Model Content

[0004] The utility model discloses a circular knitting machine for knitted fabric preparation which can avoid yarn entanglement, and aims to solve the technical problem that yarn entanglement occurs when knitting different yarns on the existing circular knitting machine for knitted fabric preparation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a large circular knitting machine for preparing knitted fabrics to avoid yarn entanglement, comprising a large circular knitting machine body, a plurality of connecting frames are provided on the top circumference of the large circular knitting machine body, and two yarn bobbins are movably connected above the plurality of connecting frames; an anti-winding module, the anti-winding module is located at the top of the connecting frame, and the anti-winding module is located in front of the yarn bobbin, the anti-winding module includes an extension cylinder, an electric drive rod is provided inside the extension cylinder, the driving end of the electric drive rod is fixedly connected to the inner wall of one side of the extension cylinder, and the fixed end of the electric drive rod is fixedly connected to the inner wall of the other side of the extension cylinder; an adjustment module, the adjustment module includes a tooth plate and a drive motor, and the adjustment module is located at the top of the connecting frame and in front of the anti-winding module, the driving end of the drive motor is connected to the drive gear through a coupling, and the drive gear is meshed with the tooth plate through the tooth groove.

[0006] In a preferred solution, the tops of multiple connecting frames are fixedly connected to two symmetrical support frames, and the opposite sides of the two support frames are fixedly connected to the same connecting rod; the outer walls of multiple connecting rods are fixedly connected to the mounting frame, and the mounting frame and a support frame on the side away from the fixed end of the electric drive rod are provided with circular holes, and the two circular holes are movably connected to the same screw rod, one side of the mounting frame is fixedly connected to a servo motor, and the driving end of the servo motor is connected to one end of the screw rod through a coupling; the outer walls of multiple connecting rods and screw rods located on the same side are movably connected to the same extension support frame, and the two ends of the extension cylinder are fixedly connected to the inner walls on both sides of the extension support frame, and the inner walls on both sides of the extension support frame are fixedly connected to the limiting telescopic cylinder, and the limiting telescopic cylinder is located below the extension cylinder.

[0007] In a preferred solution, one side of the multiple support frames is fixedly connected to a mounting plate, and a slide groove is opened on one side of the mounting plate, and the tooth plate is movably connected to the inside of the slide groove; the bottoms of the multiple mounting plates are fixedly connected to a mounting frame, and one side of the mounting frame is fixedly connected to a driving motor, and the driving end of the driving motor is connected to a driving gear through a coupling, and the driving gear is engaged with the tooth plate through a tooth groove, and the driving gear is arranged inside the mounting frame; the ends of the multiple tooth plates are vertically connected to the fixed end of the telescopic rod, and the driving end of the telescopic rod is fixedly connected to the yarn conveying ring.

[0008] From the above, it can be seen that the large circular knitting machine for preparing knitted fabrics provided by the utility model can adjust the contact area and position of the yarn conveying cylinder according to the thickness and position of the yarn, thereby avoiding entanglement due to too small friction. At the same time, its tension can be adjusted to adapt to the optimal tension required by different yarns, thereby avoiding the technical effect of loose yarns and entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of a circular knitting machine for knitted fabric production that avoids yarn entanglement proposed in the present invention;

[0010] Figure 2 This is a partial structural diagram of an anti-winding module of a circular knitting machine for knitted fabric production that prevents yarn winding, as proposed in the present invention;

[0011] Figure 3 This is a schematic cross-sectional view of the stretching cylinder in the anti-winding module of a circular knitting machine for knitted fabric production to prevent yarn winding, as proposed in the present invention;

[0012] Figure 4 The utility model provides a schematic cross-sectional structure diagram of a mounting frame in an adjustment module of a circular knitting machine for preparing knitted fabrics to avoid yarn entanglement.

[0013] In the accompanying drawings: 1. Large circular knitting machine body; 2. Connecting frame; 3. Anti-winding module; 301. Support frame; 302. Connecting rod; 303. Servo motor; 304. Mounting frame; 305. Screw; 306. Extension support frame; 307. Extension cylinder; 308. Position limiting telescopic cylinder; 309. Electric drive rod; 4. Adjustment module; 401. Mounting plate; 402. Tooth plate; 403. Mounting frame; 404. Drive motor; 405. Drive gear; 406. Telescopic rod; 407. Yarn conveying ring; 5. Yarn bobbin. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] The utility model discloses a circular knitting machine for knitted fabric preparation that can avoid yarn entanglement, which is mainly applicable to the scenario where yarn entanglement occurs when knitting different yarns on the existing circular knitting machine for knitted fabric preparation.

[0016] Reference Figures 1-4 , a large circular knitting machine for preparing knitted fabrics to avoid yarn entanglement, comprising a large circular knitting machine body 1, a plurality of connecting frames 2 are provided on the top circumference of the large circular knitting machine body 1, and two yarn bobbins 5 are movably connected above the plurality of connecting frames 2; an anti-winding module 3, the anti-winding module 3 is located at the top of the connecting frame 2, and the anti-winding module 3 is located in front of the yarn bobbin 5, the anti-winding module 3 includes an extension cylinder 307, an electric drive rod 309 is provided inside the extension cylinder 307, the driving end of the electric drive rod 309 is fixedly connected to the inner wall of one side of the extension cylinder 307, and the fixed end of the electric drive rod 309 is fixedly connected to the inner wall of the other side of the extension cylinder 307; an adjusting module 4, the adjusting module 4 includes a tooth plate 402 and a driving motor 404, and the adjusting module 4 is located at the top of the connecting frame 2 and in front of the anti-winding module 3, the driving end of the driving motor 404 is connected to a driving gear 405 through a coupling, and the driving gear 405 is meshed with the tooth plate 402 through a tooth groove.

[0017] Reference Figure 1 、 Figure 2 and Figure 3In a preferred embodiment, the tops of multiple connecting frames 2 are fixedly connected to two symmetrical support frames 301, and the opposite sides of the two support frames 301 are fixedly connected to the same connecting rod 302; the outer walls of multiple connecting rods 302 are fixedly connected to the mounting frame 304, and the mounting frame 304 and the support frame 301 on the side away from the fixed end of the electric drive rod 309 are provided with circular holes, and the two circular holes are movably connected to the same screw rod 305, and one side of the mounting frame 304 is fixedly connected to the servo motor 303, and the driving end of the servo motor 303 is connected to one end of the screw rod 305 through a coupling; the outer walls of multiple connecting rods 302 and screw rods 305 located on the same side are movably connected to the same extension support frame 306, and the two ends of the extension tube 307 are fixedly connected to the inner walls on both sides of the extension support frame 306, and the inner walls on both sides of the extension support frame 306 are fixedly connected to the limiting telescopic tube 308, and the limiting telescopic tube 308 is located below the extension tube 307.

[0018] Reference Figure 3 and Figure 4 In a preferred embodiment, one side of the multiple support frames 301 is fixedly connected to a mounting plate 401, and a slide groove is opened on one side of the mounting plate 401, and the tooth plate 402 is movably connected to the inside of the slide groove; the bottoms of the multiple mounting plates 401 are fixedly connected to a mounting frame 403, and one side of the mounting frame 403 is fixedly connected to a driving motor 404, and the driving end of the driving motor 404 is connected to a driving gear 405 through a coupling, and the driving gear 405 is engaged with the tooth plate 402 through a tooth groove, and the driving gear 405 is arranged inside the mounting frame 403; the ends of the multiple tooth plates 402 are vertically connected to the telescopic rod 406, and the driving end of the telescopic rod 406 is fixedly connected to the yarn conveying ring 407.

[0019] Working principle: Before the device is used, the yarn is located between the extension cylinder 307 and the limiting telescopic cylinder 308, and the yarn passes through the inside of the yarn conveying ring 407 at the same time. The drive motor 404 is started according to the optimal tension required for different yarns. The drive motor 404 rotates the drive gear 405 and drives the tooth plate 402 to perform reciprocating linear motion in the mounting plate 401 to achieve the required optimal tension, thereby preventing the large circular knitting machine body 1 from becoming loose or tight during movement, causing the yarn to become entangled.

[0020] During the knitting process, the electric drive rod 309 is started, and the electric drive rod 309 causes the extension tube 307 to expand and contract. For thick yarns, the extension tube 307 can be appropriately shortened, while for thin yarns, it can be appropriately extended, so that the tension and friction of different yarns can be evenly distributed, reducing the yarn entanglement caused by sudden tension changes and excessive or insufficient friction; at the same time, according to the position of the yarn, the servo motor 303 is started, and the servo motor 303 causes the lead screw 305 to drive the extension support frame 306 and its internal components to move together, adapting to the position changes caused by the movement of the yarn during the knitting process, and avoiding entanglement.

[0021] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A circular knitting machine for knitting fabrics to avoid yarn entanglement, characterized in that: The invention comprises a large circular knitting machine body (1), wherein a plurality of connecting frames (2) are provided on the top circumference of the large circular knitting machine body (1), and two yarn bobbins (5) are movably connected above the plurality of connecting frames (2); an anti-winding module (3), wherein the anti-winding module (3) is located on the top of the connecting frame (2) and is located in front of the yarn bobbins (5), and the anti-winding module (3) comprises an extension cylinder (307), an electric drive rod (309) is provided inside the extension cylinder (307), and a driving end of the electric drive rod (309) is fixed. The electric drive rod (309) is fixedly connected to the inner wall of one side of the extension tube (307), and the fixed end of the electric drive rod (309) is fixedly connected to the inner wall of the other side of the extension tube (307); the adjustment module (4), the adjustment module (4) includes a tooth plate (402) and a drive motor (404), and the adjustment module (4) is located at the top of the connecting frame (2) and in front of the anti-winding module (3), the driving end of the drive motor (404) is connected to the driving gear (405) through a coupling, and the driving gear (405) is meshed with the tooth plate (402) through a tooth groove.

2. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 1, characterized in that: The tops of the plurality of connecting frames (2) are fixedly connected to two symmetrical support frames (301), and opposite sides of the two support frames (301) are fixedly connected to the same connecting rod (302).

3. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 2, characterized in that: The outer walls of the plurality of connecting rods (302) are fixedly connected to a mounting frame (304), and a circular hole is provided on the mounting frame (304) and a support frame (301) on a side away from the fixed end of the electric drive rod (309). The same screw rod (305) is movably connected inside the two circular holes. A servo motor (303) is fixedly connected to one side of the mounting frame (304), and the driving end of the servo motor (303) is connected to one end of the screw rod (305) via a coupling.

4. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 3, characterized in that: The outer walls of the plurality of connecting rods (302) and the screw rod (305) located on the same side are all movably connected to the same extension support frame (306), and the two ends of the extension tube (307) are fixedly connected to the inner walls on both sides of the extension support frame (306), and the inner walls on both sides of the extension support frame (306) are fixedly connected to the limiting telescopic tube (308), and the limiting telescopic tube (308) is located below the extension tube (307).

5. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 2, characterized in that: One side of the plurality of support frames (301) is fixedly connected to a mounting plate (401), and a sliding groove is provided on one side of the mounting plate (401), and the tooth plate (402) is movably connected inside the sliding groove.

6. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 5, characterized in that: The bottoms of the plurality of mounting plates (401) are all fixedly connected to a mounting frame (403), and a drive motor (404) is fixedly connected to one side of the mounting frame (403). The drive end of the drive motor (404) is connected to a drive gear (405) via a coupling. The drive gear (405) is meshed with the tooth plate (402) via a tooth groove. The drive gear (405) is arranged inside the mounting frame (403).

7. A circular knitting machine for knitted fabric production to avoid yarn entanglement according to claim 6, characterized in that: The ends of the plurality of tooth plates (402) are vertically connected to the fixed end of the telescopic rod (406), and the driving end of the telescopic rod (406) is fixedly connected to the yarn conveying ring (407).

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