A yarn feed device for a circular knitting machine

Abstract

The utility model discloses a yarn pay-off device of circular knitting machine relates to yarn pay-off technical field, including circular knitting machine, the upside of the outside of circular knitting machine is provided with fixed ring frame, the outer wall annular array of fixed ring frame is provided with a plurality of yarn pay-off structures, the downside of the outside of circular knitting machine is close to fixed ring frame and is provided with fixed ring, the outer wall annular array fixed connection of fixed ring has a plurality of connecting pieces, and the left and right two ends of the outer wall of a plurality of connecting pieces are close to yarn pay-off structure front side respectively and are fixedly connected with the pressure rod. The utility model discloses a yarn cylinder is sleeved on the yarn feeding frame in yarn pay-off structure, and the one end of yarn cylinder is positioned to the limiting plate, and then the other end of yarn cylinder is positioned by using the positioning assembly, prevents yarn cylinder from moving everywhere even from the outside of device and is forced to throw out in the work rotation, reaches the positioning installation of yarn cylinder, improves the work efficiency of yarn in yarn feeding frame.

Description

Technical Field

[0001] This utility model relates to the field of yarn unwinding technology, specifically to a yarn unwinding device for a circular knitting machine. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines or circular weft knitting machines, have seen rapid development due to their numerous loop formations, high speed, high output, rapid pattern changes, good fabric quality, fewer processing steps, and strong product adaptability. In knitting production, the yarn feeder is indispensable, primarily supplying yarn to the circular knitting machine to ensure its normal spinning production. However, the existing technology faces the following problems:

[0003] During operation, the yarn bobbin rotates rapidly. If the yarn bobbin is not positioned, it may move around or even be thrown out of the device. This can cause the yarn to get stuck or knotted on the yarn feeder, thus affecting work efficiency. In addition, the length of the yarn feeder is usually fixed, which makes it difficult to meet the installation requirements of yarn bobbins of different lengths. Utility Model Content

[0004] This invention provides a yarn feeding device for a circular knitting machine to solve the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A yarn feeding device for a circular knitting machine includes the circular knitting machine. A fixed ring frame is provided on the upper side of the outside of the circular knitting machine. A plurality of yarn feeding structures are arranged in a circular array on the outer wall of the fixed ring frame. A fixed ring is provided on the lower side of the outside of the circular knitting machine near the fixed ring frame. A plurality of connectors are fixedly connected to the outer wall of the fixed ring in a circular array. Pressure rods are fixedly connected to the left and right ends of the outer walls of the plurality of connectors near the front side of the yarn feeding structures.

[0007] A further improvement of this utility model is that the yarn feeding structure includes a fixed column, a connecting rod, two yarn feeding frames, two moving rods, two positioning components, and two limiting plates. The front end of the fixed column is fixedly connected to the rear side of the outer wall of the connecting rod. The opposite surfaces of the two yarn feeding frames are fixedly connected to the two ends of the connecting rod. The ends of the two yarn feeding frames that are far apart are respectively provided with moving grooves. One end of the outer wall of each moving rod penetrates into the interior of the moving groove. One end of each of the two positioning components is respectively located at the ends of the two moving rods that are far apart. The tops of the two limiting plates are respectively fixedly connected to the bottom of the yarn feeding frames on the side close to the two yarn feeding frames.

[0008] A further improvement of this utility model is that the rear end of the fixed column is fixedly connected to the outer wall of the fixed ring frame.

[0009] A further improvement of this utility model is that the positioning component includes a housing, a positioning plate, a fixed rod, a spring, and a pressing plate. The outer wall of the positioning plate is sleeved with the inside of the housing. The bottom of the fixed rod is fixedly connected to the middle of the inner wall of the housing. The middle of the positioning plate has a positioning groove that matches the fixed rod. The inside of the spring is sleeved with the outer wall of the fixed rod. One end of the housing has a movable groove that communicates with the inside and outside. One end of the outer wall of the pressing plate is fixedly connected to the bottom of one end of the positioning plate through the movable groove.

[0010] A further improvement of this utility model is that: the end of the sleeve away from the movable groove is fixedly connected to one end of the moving rod; the outer wall of the fixed rod is slidably connected to the inner wall of the positioning groove; the bottom of the spring is fixedly connected to the inner wall of the sleeve; the top of the spring is set at the bottom of the positioning plate; and the spring is made of a high-strength material.

[0011] A further improvement of this utility model is that: a turntable adapted to the moving groove is fixedly connected to the end of the moving rod away from the housing; the outer wall of the turntable is provided with threads; and the inner wall of the moving groove is provided with a threaded groove adapted to the threads.

[0012] A further improvement of this utility model is that the outer wall of the turntable is threadedly connected to the inner wall of the threaded groove via a thread.

[0013] A further improvement of this utility model is that a rubber ring is fixedly connected to the inner wall of the movable groove near the outer side of the threaded groove, and the inner wall of the rubber ring overlaps with the outer wall of the movable rod.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This utility model provides a yarn feeding device for a circular knitting machine. It employs a combination of a fixed ring frame, a yarn feeding structure, a fixed ring, a connecting piece, and a pressure rod. By placing the yarn bobbin on the yarn feeding frame within the yarn feeding structure, a limiting plate positions one end of the yarn bobbin, and a positioning component positions the other end. This prevents the yarn bobbin from moving around during operation or even being thrown out of the device. It solves the problem that without proper positioning, the yarn bobbin can easily move around or even be thrown out of the device during rapid rotation, causing the yarn to get stuck or knotted on the yarn feeding frame, thus affecting work efficiency. This device achieves the beneficial effect of positioning and installing the yarn bobbin, improving the working efficiency of the yarn on the yarn feeding frame.

[0016] This utility model provides a yarn feeding device for a circular knitting machine. It adopts the cooperation between a fixed ring frame and a yarn feeding structure. When installing yarn bobbins, the length of the yarn feeding frame is adjusted by means of threads according to the length of the yarn bobbin. This facilitates the installation of yarn bobbins of different lengths and solves the problem that the length of the yarn feeding frame is usually fixed, making it difficult to meet the installation requirements of yarn bobbins of different lengths. It achieves the beneficial effect of meeting the installation requirements of yarn bobbins of different lengths and improving the practicality of use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the yarn feeding device of the circular knitting machine of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the yarn feeding structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the positioning component of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the three-dimensional structure of the yarn feeding frame of this utility model;

[0021] Figure 5 This is a partially enlarged schematic diagram of the A-dimensional structure of this utility model.

[0022] In the diagram: 1. Circular knitting machine; 2. Fixed ring frame; 3. Yarn feeding structure; 31. Fixed column; 32. Connecting rod; 33. Yarn feeder; 330. Moving groove; 3301. Threaded groove; 332. Rubber ring; 34. Moving rod; 341. Turntable; 342. Thread; 35. Positioning assembly; 351. Housing; 3510. Movable groove; 352. Positioning plate; 3520. Positioning groove; 353. Fixed rod; 354. Spring; 355. Pressing plate; 36. Limiting plate; 4. Fixed ring; 5. Connecting piece; 6. Pressure rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a yarn feeding device for a circular knitting machine, including a circular knitting machine 1. A fixed ring frame 2 is provided on the upper side of the outside of the circular knitting machine 1. A plurality of yarn feeding structures 3 are arranged in a ring array on the outer wall of the fixed ring frame 2. A fixed ring 4 is provided on the lower side of the outside of the circular knitting machine 1 near the fixed ring frame 2. A plurality of connectors 5 are fixedly connected in a ring array on the outer wall of the fixed ring 4. Pressure rods 6 are fixedly connected to the left and right ends of the outer walls of the plurality of connectors 5 near the front side of the yarn feeding structures 3, respectively.

[0025] The device is equipped with a fixed ring frame 2, a yarn feeding structure 3, a fixed ring 4, a connector 5, and a pressure rod 6. Through the operation and cooperation of the fixed ring frame 2 and the yarn feeding structure 3, the yarn bobbin can be positioned and installed, preventing it from moving around or even being thrown out of the device during operation. At the same time, it can meet the installation requirements of yarn bobbins of different lengths, improving its practicality.

[0026] like Figure 2 As shown, this utility model provides a technical solution for a yarn feeding device of a circular knitting machine: the yarn feeding structure 3 includes a fixed column 31, a connecting rod 32, two yarn feeding frames 33, two moving rods 34, two positioning components 35, and two limiting plates 36. The front end of the fixed column 31 is fixedly connected to the rear side of the outer wall of the connecting rod 32. The opposite surfaces of the two yarn feeding frames 33 are fixedly connected to the two ends of the connecting rod 32 respectively. The ends of the two yarn feeding frames 33 that are far apart are respectively provided with moving grooves 330. One end of the outer wall of the moving rod 34 is inserted into the interior of the moving groove 330. One end of the two positioning components 35 is respectively set at the ends of the two moving rods 34 that are far apart. The tops of the two limiting plates 36 are respectively fixedly connected to the bottom of the yarn feeding frames 33 on the side close to the two yarn feeding frames 33. Installing the limiting plates 36 can achieve the effect of positioning one end of the yarn bobbin. The rear end of the fixed column 31 is fixedly connected to the outer wall of the fixed ring frame 2.

[0027] like Figure 3 As shown, this utility model provides a technical solution for a yarn feeding device of a circular knitting machine: the positioning component 35 includes a housing 351, a positioning plate 352, a fixed rod 353, a spring 354, and a pressing plate 355. The outer wall of the positioning plate 352 is sleeved with the inside of the housing 351. The bottom of the fixed rod 353 is fixedly connected to the middle of the inner wall of the housing 351. The middle of the positioning plate 352 has a positioning groove 3520 that matches the fixed rod 353. The inside of the spring 354 is sleeved with the outer wall of the fixed rod 353. When the positioning plate 352 moves telescopically, the fixed rod 353 moves along the positioning groove 3520, which improves the stability of the positioning plate 352 during movement. One end of the housing 351 has a flexible opening that connects the inside and outside. The movable groove 3510 is used to fix one end of the outer wall of the pressing plate 355 to the bottom of one end of the positioning plate 352. The pressing plate 355 drives the positioning plate 352 to slide along the movable groove 3510, which limits the movement trajectory of the positioning plate 352. The end of the sleeve 351 away from the movable groove 3510 is fixedly connected to one end of the moving rod 34. The outer wall of the fixed rod 353 is slidably connected to the inner wall of the positioning groove 3520. The bottom of the spring 354 is fixedly connected to the inner wall of the sleeve 351. The top of the spring 354 is set at the bottom of the positioning plate 352. The spring 354 is made of 55SiCrA steel to avoid the possibility of shaking and deformation of the yarn bobbin during operation.

[0028] like Figure 4-5 As shown, this utility model provides a yarn feeding device for a circular knitting machine: a turntable 341 adapted to a moving groove 330 is fixedly connected to the end of the moving rod 34 away from the housing 351. The outer wall of the turntable 341 is provided with a thread 342, and the inner wall of the moving groove 330 is provided with a threaded groove 3301 adapted to the thread 342. The outer wall of the turntable 341 is threadedly connected to the inner wall of the threaded groove 3301 through the thread 342. The moving rod 34 is screwed into the moving groove 330 through the turntable 341, which adjusts the length of the yarn feeder 33 and the moving rod 34. A rubber ring 332 is fixedly connected to the inner wall of the moving groove 330 near the outer side of the threaded groove 3301. The inner wall of the rubber ring 332 overlaps with the outer wall of the moving rod 34. The rubber ring 332 is tightly attached to the surface of the moving rod 34, increasing the resistance to the movement of the moving rod 34 and ensuring the stability of the moving rod 34 during the working rotation of the yarn package.

[0029] The working principle of the yarn feeding device of this circular knitting machine will be explained in detail below.

[0030] like Figure 1-5 As shown, when the yarn bobbin is installed on the yarn feeding structure 3, the moving rod 34 is rotated along the threaded groove 3301 on the turntable 341 via the thread 342, according to the length of the yarn bobbin. This causes the moving rod 34 to extend and retract along the moving groove 330, adjusting the length between the yarn feeder 33 and the moving rod 34. The rubber ring 332 is pressed against the outer wall of the moving rod 34, increasing the surface resistance of the moving rod 34 and further ensuring stability after the length of the moving rod 34 is adjusted. Then, the pressing plate 355 moves along the movable groove 350. When the positioning plate 352 is pressed inward, it deforms under the pressure of the spring 354, pressing the positioning plate 352 into the inside of the housing 351. Then, the yarn bobbin is inserted into the outside of the yarn feeding frame 33 along the housing 351. When the positioning plate 352 is released, the spring 354 drives the positioning plate 352 to return to its original position upward. Combined with the limiting plate 36, the yarn bobbin is positioned and contacted on both sides to prevent it from moving around or even being thrown out of the device during operation. This further improves the working efficiency of the yarn on the yarn feeding frame during the operation of the circular knitting machine 1.

[0031] The specific type and structure of the circular knitting machine 1 in this solution are all existing products, and the specific circuit connection structure and control relationship of the circular knitting machine 1 are also existing technologies, which will not be elaborated on here.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A yarn feeding device for a circular knitting machine, comprising a circular knitting machine (1), characterized in that: A fixed ring frame (2) is provided on the upper side of the outside of the circular knitting machine (1). Several yarn feeding structures (3) are arranged in a ring array on the outer wall of the fixed ring frame (2). A fixed ring (4) is provided on the lower side of the outside of the circular knitting machine (1) near the fixed ring frame (2). Several connectors (5) are fixedly connected to the ring array on the outer wall of the fixed ring (4). Pressure rods (6) are fixedly connected to the left and right ends of the outer wall of the several connectors (5) near the front of the yarn feeding structure (3).

2. The yarn feeding device for a circular knitting machine according to claim 1, characterized in that: The yarn feeding structure (3) includes a fixed column (31), a connecting rod (32), two yarn feeders (33), two moving rods (34), two positioning components (35), and two limiting plates (36). The front end of the fixed column (31) is fixedly connected to the rear side of the outer wall of the connecting rod (32). The opposite surfaces of the two yarn feeders (33) are fixedly connected to the two ends of the connecting rod (32). The ends of the two yarn feeders (33) that are far apart are respectively provided with moving grooves (330). One end of the outer wall of the moving rod (34) penetrates into the interior of the moving groove (330). One end of the two positioning components (35) is respectively set at the ends of the two moving rods (34) that are far apart. The tops of the two limiting plates (36) are respectively fixedly connected to the bottom of the yarn feeders (33) on the side close to the two yarn feeders (33).

3. The yarn feeding device for a circular knitting machine according to claim 2, characterized in that: The rear end of the fixed column (31) is fixedly connected to the outer wall of the fixed ring frame (2).

4. The yarn feeding device for a circular knitting machine according to claim 2, characterized in that: The positioning component (35) includes a housing (351), a positioning plate (352), a fixed rod (353), a spring (354), and a pressing plate (355). The outer wall of the positioning plate (352) is sleeved with the inside of the housing (351). The bottom of the fixed rod (353) is fixedly connected to the middle of the inner wall of the housing (351). The middle of the positioning plate (352) is provided with a positioning groove (3520) that matches the fixed rod (353). The inside of the spring (354) is sleeved with the outer wall of the fixed rod (353). One end of the housing (351) is provided with an inner and outer communicating groove (3510). One end of the outer wall of the pressing plate (355) is fixedly connected to the bottom of one end of the positioning plate (352) through the groove (3510).

5. The yarn feeding device for a circular knitting machine according to claim 4, characterized in that: The end of the housing (351) away from the movable groove (3510) is fixedly connected to one end of the moving rod (34), the outer wall of the fixed rod (353) is slidably connected to the inner wall of the positioning groove (3520), the bottom of the spring (354) is fixedly connected to the inner wall of the housing (351), and the top of the spring (354) is set at the bottom of the positioning plate (352).

6. The yarn feeding device for a circular knitting machine according to claim 2, characterized in that: The end of the moving rod (34) away from the housing (351) is fixedly connected to a turntable (341) that is compatible with the moving groove (330). The outer wall of the turntable (341) is provided with a thread (342), and the inner wall of the moving groove (330) is provided with a threaded groove (3301) that is compatible with the thread (342).

7. The yarn feeding device for a circular knitting machine according to claim 6, characterized in that: The outer wall of the turntable (341) is threadedly connected to the inner wall of the threaded groove (3301) via a thread (342).

8. The yarn feeding device for a circular knitting machine according to claim 6, characterized in that: A rubber ring (332) is fixedly connected to the inner wall of the movable groove (330) near the outer side of the threaded groove (3301), and the inner wall of the rubber ring (332) overlaps with the outer wall of the movable rod (34).

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