Yarn guide structure of circular knitting machine for producing high-density knitted fabric

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By introducing components such as a support frame, an angle adjustment mechanism, and a pressure sensor into the yarn guide structure of a circular knitting machine, dynamic adjustment of yarn tension can be achieved, solving the problem that the yarn guide structure cannot adapt to different fabrics and improving production efficiency.

CN223674866UActive Publication Date: 2025-12-16GUANGZHOU RIXIANG TEXTILE CO LTD

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Patent Information

Application Number: CN202520081643.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-01-14
Publication Date: 2025-12-16
Estimated Expiration: 2035-01-14

AI Technical Summary

Technical Problem

The existing circular knitting machine's guide yarn structure lacks adaptive adjustment function, making it difficult to adapt to fabrics of different thicknesses or elasticities, resulting in troublesome and time-consuming adjustments.

Method used

It employs components such as a support frame, angle adjustment mechanism, length adjustment mechanism, and pressure sensor, and uses a motor and controller to achieve dynamic adjustment of yarn tension, including real-time adjustment of angle and length.

Benefits of technology

It improves the adaptability and practicality of the yarn guide structure of the circular knitting machine, enabling it to quickly adapt to fabrics of different thicknesses or elasticities, and reducing adjustment time and difficulty.

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Abstract

The utility model discloses a yarn guide structure of a circular knitting machine for high-density knitted fabric production, the yarn guide structure comprises a supporting frame, four fixing mechanisms are arranged on the surface of the supporting frame, the four fixing mechanisms are symmetrically distributed on the surface of the supporting frame, an angle adjusting mechanism is arranged at the top of the supporting frame, the angle adjusting mechanism comprises a fixing frame, and the fixing frame is arranged on the supporting frame. The fixing frame is fixedly connected with the supporting frame, one side of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating rod, the motor, the fixing frame and the rotating rod are arranged, the motor is fixed through the fixing frame, and then the output end of the motor rotates to drive the rotating rod to rotate; and the angle of the movable arm is changed through rotation of the rotating rod, so that dynamic adjustment of the tension of the yarn is realized, the problems that a conventional yarn guide structure of the circular knitting machine lacks a self-adaptive adjustment function and is troublesome and time-consuming to adjust when facing cloth with different thicknesses or elasticity are solved, and the practicability is improved.

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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile machinery, in particular to a yarn guide structure of a circular knitting machine for high-density knitted fabric production. BACKGROUND

[0002] The circular knitting machine is a kind of machine equipment for producing knitted fabrics, which is widely used in the textile, clothing and home furnishing industries. It can quickly and efficiently knit various knitted products such as sweaters, T-shirts, socks, underwear, etc. through the rotation of the circular needle cylinder and the corresponding needle tool. The yarn guide structure is a component on the circular knitting machine.

[0003] At present, the common yarn guide mechanism of the circular knitting machine on the market adopts single-point or multi-point contact type yarn guide method. Although these traditional methods can ensure the production requirements of ordinary density knitted fabrics to a certain extent, they lack self-adaptive adjustment function. When facing different thickness or elasticity of the cloth, it is both troublesome and time-consuming to adjust. CONTENT OF THE INVENTION

[0004] In view of the deficiencies of the prior art, the present application provides a yarn guide structure of a circular knitting machine for high-density knitted fabric production, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a yarn guide structure of a circular knitting machine for high-density knitted fabric production, comprising a support frame, four fixing mechanisms are arranged on the surface of the support frame, the four fixing mechanisms are symmetrically distributed on the surface of the support frame, an angle adjusting mechanism is arranged on the top of the support frame, the angle adjusting mechanism comprises a fixed frame, the fixed frame is fixedly connected with the support frame, a motor is fixedly connected on one side of the fixed frame, a rotating rod is fixedly connected to the output end of the motor, the rotating rod is rotatably connected with the fixed frame, a length adjusting mechanism is arranged on the surface of the fixed frame, a positioning frame is fixedly connected to the top of the length adjusting mechanism, two tensioning wheels are installed in the positioning frame, and the two tensioning wheels are evenly distributed in the positioning frame.

[0006] As a preferred embodiment, the fixing mechanism comprises a limiting hole, the limiting hole is arranged on the surface of the support frame, and a first bolt is arranged in the limiting hole, the first bolt is threadedly connected with the support frame.

[0007] By adopting the above technical scheme, the first bolt is limited by the limiting hole, and then the support frame is fixed on the workbench of the circular knitting machine by rotating the first bolt, so that the support frame can be better fixed on the workbench of the circular knitting machine.

[0008] As a preferred implementation, the length adjusting mechanism comprises a movable arm fixedly connected with the rotating rod, a moving rod slidably connected inside the movable arm, the moving rod being fixedly connected with the positioning frame, a second bolt threadedly connected inside the moving rod, and a plurality of through holes formed on the surface of the movable arm, the through holes being uniformly distributed on the surface of the movable arm and being adapted to the second bolt.

[0009] By pulling the positioning frame to move the moving rod inside the movable arm, the position of the positioning frame is adjusted, and the second bolt is rotated to pass through the through holes on the surface of the movable arm and enter the inside of the moving rod to position the moving rod, so that the position of the positioning frame can be better adjusted.

[0010] As a preferred implementation, the inside of the tensioning wheel is fixedly connected with a pressure sensor, the surface of the support frame is fixedly connected with a controller, and the pressure sensor, the motor and the controller are electrically connected.

[0011] By electrically connecting the pressure sensor, the motor and the controller, the state of the yarn, including but not limited to the tension size, the movement speed and other parameters, is monitored in real time by the pressure sensor, the data signal from the sensor is received by the controller, and after calculation and analysis, an instruction is sent to control the output end of the motor to rotate, so that the angle of the movable arm is changed, thereby realizing dynamic adjustment of the yarn tension, and the dynamic adjustment of the yarn tension can be better realized.

[0012] As a preferred implementation, the surface of the movable arm is fixedly connected with two springs, and the two springs are symmetrically distributed on the surface of the movable arm.

[0013] By fixedly connecting the surface of the movable arm with two springs, and symmetrically distributing the two springs on the surface of the movable arm, the movable arm is reset by the springs, so that the movable arm can be better reset.

[0014] As a preferred implementation, the inner wall of the tensioning wheel is fixedly connected with a rubber protective pad.

[0015] By fixedly connecting the inner wall of the tensioning wheel with a rubber protective pad, the yarn is protected by the rubber protective pad, so that the yarn fibers can be better protected from damage.

[0016] As a preferred implementation, the surface of the movable arm and the support frame is fixedly connected with a wear-resistant layer, and the wear-resistant layer is made of ceramic material.

[0017] By adopting the technical scheme, the wear-resistant layer is fixedly connected to surfaces of the movable arm and the support frame, and the movable arm and the support frame are protected by the wear-resistant layer, so that the movable arm and the support frame can be better protected, and service lives of the movable arm and the support frame are prolonged.

[0018] The application has the following beneficial effects:

[0019] 1. The yarn guide structure of the circular knitting machine for high-density knitted fabric production, the motor is fixed by the fixed frame, the output end of the motor drives the rotating rod to rotate, the angle of the movable arm is changed by the rotation of the rotating rod, so that the dynamic adjustment of the yarn tension is realized, the traditional yarn guide structure of the circular knitting machine lacks self-adaptive adjustment function, and when facing different thickness or elasticity of the cloth, the adjustment is not only troublesome but also time-consuming, and the practicability is improved.

[0020] 2. The yarn guide structure of the circular knitting machine for high-density knitted fabric production, the movable rod, the through hole, the second bolt and the movable arm are arranged, the movable rod is moved in the movable arm by pulling the positioning frame, the position of the positioning frame is adjusted, the second bolt is made to pass through the through hole on the surface of the movable arm and enter the inside of the movable rod by rotating the second bolt, and the movable rod is positioned, the length of the movable arm cannot be adjusted in the traditional yarn guide structure of the circular knitting machine, the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front structure schematic view of the application;

[0022] Figure 2 It is an angle adjusting mechanism structure schematic view of the application;

[0023] Figure 3 It is a length adjusting mechanism structure schematic view of the application;

[0024] Figure 4 It is a positioning frame structure sectional view of the application.

[0025] In the drawing, 1 is a support frame, 2 is a fixed mechanism, 21 is a first bolt, 22 is a limiting hole, 3 is an angle adjusting mechanism, 31 is a motor, 32 is a fixed frame, 33 is a rotating rod, 4 is a length adjusting mechanism, 41 is a movable rod, 42 is a through hole, 43 is a second bolt, 44 is a movable arm, 5 is a tensioning wheel, 6 is a pressure sensor, 7 is a controller, 8 is a spring, and 9 is a positioning frame. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Figures 1-2 , the yarn guide structure of the circular knitting machine for producing high-density knitted fabric, comprising a support frame 1, the surface of the support frame 1 is provided with four fixing mechanisms 2, the four fixing mechanisms 2 are symmetrically distributed on the surface of the support frame 1, the fixing mechanism 2 comprises a limiting hole 22, the limiting hole 22 is opened on the surface of the support frame 1, the inside of the limiting hole 22 is provided with a first bolt 21, the first bolt 21 is threadedly connected with the support frame 1; the first bolt 21 is limited through the limiting hole 22, and then the support frame 1 is fixed on the workbench of the circular knitting machine by rotating the first bolt 21, so that the support frame 1 can be better fixed on the workbench of the circular knitting machine.

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Figures 1-3 , the top of the support frame 1 is provided with an angle adjusting mechanism 3, the angle adjusting mechanism 3 comprises a fixed frame 32, the fixed frame 32 is fixedly connected with the support frame 1, one side of the fixed frame 32 is fixedly connected with a motor 31, the output end of the motor 31 is fixedly connected with a rotating rod 33, the rotating rod 33 is rotatably connected with the fixed frame 32, the surface of the fixed frame 32 is provided with a length adjusting mechanism 4, the top of the length adjusting mechanism 4 is fixedly connected with a positioning frame 9, the length adjusting mechanism 4 comprises a movable arm 44, the movable arm 44 is fixedly connected with the rotating rod 33, the inside of the movable arm 44 is slidably connected with a moving rod 41, the moving rod 41 is fixedly connected with the positioning frame 9, the inside of the moving rod 41 is threadedly connected with a second bolt 43, a plurality of through holes 42 are formed in the surface of the movable arm 44, the plurality of through holes 42 are uniformly distributed on the surface of the movable arm 44, and the through holes 42 are matched with the second bolt 43; the position of the positioning frame 9 is adjusted by moving the moving rod 41 in the inside of the movable arm 44 through pulling the positioning frame 9, and then the second bolt 43 is made to pass through the through holes 42 in the surface of the movable arm 44 and enter the inside of the moving rod 41 through rotating the second bolt 43, so that the position of the positioning frame 9 can be better adjusted.

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Figures 1-4The inside of the positioning frame 9 is provided with two tensioning wheels 5, which are uniformly distributed in the inside of the positioning frame 9. The inside of the tensioning wheel 5 is fixedly connected with a pressure sensor 6. The surface of the support frame 1 is fixedly connected with a controller 7. The pressure sensor 6, the motor 31 and the controller 7 are electrically connected. The state of the yarn is monitored in real time by the pressure sensor 6, including but not limited to the tension size, the movement speed and other parameters. The data signal from the sensor is received by the controller 7. After calculation and analysis, the output end of the motor 31 is controlled to rotate, so that the angle of the movable arm 44 changes, thereby realizing dynamic adjustment of the yarn tension, and better dynamic adjustment of the yarn tension can be realized.

[0030] With reference to Figure 1 The surface of the movable arm 44 is fixedly connected with two springs 8, which are symmetrically distributed on the surface of the movable arm 44. The surface of the movable arm 44 is fixedly connected with two springs 8, which are symmetrically distributed on the surface of the movable arm 44. The movable arm 44 is reset by the spring 8, and the movable arm 44 can be better reset.

[0031] With reference to Figure 4 The inner wall of the tensioning wheel 5 is fixedly connected with a rubber protection pad. The yarn is protected by the rubber protection pad, and the yarn fiber can be better protected from damage.

[0032] With reference to Figures 1-3 The surface of the movable arm 44 and the support frame 1 is fixedly connected with a wear-resistant layer, and the wear-resistant layer is made of ceramic material. The surface of the movable arm 44 and the support frame 1 is fixedly connected with a wear-resistant layer, and the movable arm 44 and the support frame 1 are protected by the wear-resistant layer. The movable arm 44 and the support frame 1 can be better protected, and the service life of the movable arm 44 and the support frame 1 can be prolonged.

[0033] Working principle: the first bolt 21 is limited through the limiting hole 22, then the support frame 1 is fixed on the workbench of the circular knitting machine by rotating the first bolt 21, then the yarn is threaded through the inside of the positioning frame 9, is sleeved on the surface of the tension pulley 5, then the position of the positioning frame 9 is adjusted by pulling the positioning frame 9 to make the moving rod 41 move in the inside of the movable arm 44, then the second bolt 43 is positioned by rotating the second bolt 43 to make the second bolt 43 pass through the through hole 42 on the surface of the movable arm 44 and enter the inside of the moving rod 41, then the pressure sensor 6, the motor 31 and the controller 7 are electrically connected, then the state of the yarn is monitored in real time by the pressure sensor 6, including but not limited to tension, speed and other parameters, then the data signal from the sensor is received by the controller 7, and the output end of the motor 31 is controlled to rotate after calculation and analysis, then the output end of the motor 31 drives the rotating rod 33 to rotate, then the angle of the movable arm 44 is changed by the rotating rod 33, so that the dynamic adjustment of the yarn tension is realized, and the movable arm 44 is reset by the spring 8 in the case of losing external driving force.

[0034] In the description of the present application, it should be pointed out that the positions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the application. The application must have a specific orientation, construction and operation, and therefore cannot be understood as limiting the application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0036] The present application has been described above in combination with specific embodiments, but those skilled in the art should understand that these descriptions are exemplary and are not limiting the scope of protection of the present application. Those skilled in the art can make various modifications and changes to the present application according to the spirit and principles of the present application, and these modifications and changes are also within the scope of the present application.

Claims

1. A yarn guide structure for a circular knitting machine for the production of high-density knitted fabrics, comprising a support frame (1), characterized in that, The surface of the support frame (1) is provided with four fixing mechanisms (2), the four fixing mechanisms (2) are symmetrically distributed on the surface of the support frame (1), the top of the support frame (1) is provided with an angle adjusting mechanism (3), the angle adjusting mechanism (3) comprises a fixing frame (32), the fixing frame (32) is fixedly connected with the support frame (1), one side of the fixing frame (32) is fixedly connected with a motor (31), the output end of the motor (31) is fixedly connected with a rotating rod (33), the rotating rod (33) is rotatably connected with the fixing frame (32), the surface of the fixing frame (32) is provided with a length adjusting mechanism (4), the top of the length adjusting mechanism (4) is fixedly connected with a positioning frame (9), two tensioning wheels (5) are mounted in the positioning frame (9).

2. The yarn guide arrangement of the circular knitting machine for high density knit fabric production according to claim 1, characterized in that, The fixing mechanism (2) comprises a limiting hole (22), the limiting hole (22) is arranged on the surface of the support frame (1), and the first bolt (21) is arranged in the limiting hole (22).

3. The yarn guide arrangement of the circular knitting machine for high density knit fabric production according to claim 1, characterized in that, The length adjusting mechanism (4) comprises a movable arm (44), the movable arm (44) is fixedly connected with the rotating rod (33), the movable arm (44) is slidably connected with a moving rod (41), the moving rod (41) is fixedly connected with the positioning frame (9), the moving rod (41) is threadedly connected with a second bolt (43), a plurality of through holes (42) are arranged on the surface of the movable arm (44), and the through holes (42) are matched with the second bolt (43).

4. The yarn guide arrangement of the circular knitting machine for high density knit fabric production according to claim 1, characterized in that, The inside of the tensioning wheel (5) is fixedly connected with a pressure sensor (6), the surface of the support frame (1) is fixedly connected with a controller (7), and the pressure sensor (6), the motor (31) and the controller (7) are electrically connected.

5. The yarn guide arrangement of the circular knitting machine for high density knit fabric production according to claim 3, characterized in that, The surface of the movable arm (44) is fixedly connected with two springs (8), and the two springs (8) are symmetrically distributed on the surface of the movable arm (44).

6. The guide structure of the circular knitting machine for high density knit fabric production according to claim 1 characterized in that, The inner wall of the tensioning wheel (5) is fixedly connected with a rubber protection pad.

7. The guide structure of the circular knitting machine for high density knit fabric production according to claim 3, characterized in that, The surface of the movable arm (44) and the support frame (1) is fixedly connected with a wear-resistant layer, and the wear-resistant layer is made of ceramic material.