Cutting mechanism and twisting rod winding device comprising same

Abstract

The utility model discloses a cutting mechanism and a twisting rod winding device comprising the same, and the cutting mechanism comprises a first wire pressing group which comprises a first upper pressing block and a first lower pressing block which can move up and down; the second wire pressing group comprises a second upper pressing block and a second lower pressing block which can move up and down; the wire clamping set is located between the first wire pressing set and the second wire pressing set, the wire clamping set comprises an upper clamping head and a lower clamping head, and the upper clamping head and the lower clamping head are arranged in a staggered mode in the vertical direction; the cutting set is located on one side of the wire clamping set, and the cutting set comprises a cutting tool capable of moving in a reciprocating mode in the cutting direction; the cutting edge of the cutting tool is positioned in a gap between the upper chuck and the lower chuck when the cutting tool is in an extending state; the first wire pressing set, the cutting set and the second wire pressing set are sequentially arranged in the metal wire transmission direction. The woolen yarn and the metal wires are fed through the feeding mechanism, material receiving and winding machining are achieved through the material receiving mechanism, automatic clamping, cutting and end bending are achieved through the cutting mechanism, production efficiency is high, and practicability is high.

Description

Technical Field

[0001] This utility model belongs to the field of twisted stick production technology, specifically relating to a cutting mechanism and a twisted stick winding device containing the same. Background Technology

[0002] Pipe cleaners, also known as pipe cleaners, are a type of craft material that can be bent and twisted. They consist of a fuzzy outer layer of yarn containing fine, flexible metal wire (such as iron wire). Pipe cleaners come in a variety of colors and can be bent freely to create attractive items, making them ideal for children's craft activities.

[0003] The existing production methods for pipe cleaners mainly rely on manual operation. The auxiliary winding equipment is mainly used to clamp the yarn of the pipe cleaners. The winding of the yarn and the cutting of the metal wires still mainly depend on manual operation, resulting in low production efficiency. It usually requires many workers to operate at the same time to meet production needs, and the labor cost is high.

[0004] Therefore, a cutting mechanism and a twisted rod winding device containing it were designed to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0006] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a cutting mechanism and a twisted rod winding device including the same.

[0007] To achieve the above and other related objectives, the technical solution provided by this utility model is: a cutting mechanism, comprising:

[0008] The first wire pressing group includes a first upper pressing block and a first lower pressing block that can move up and down.

[0009] The second wire pressing group includes a second upper pressing block and a second lower pressing block that can move up and down.

[0010] A wire clamping group is located between the first wire pressing group and the second wire pressing group. The wire clamping group includes an upper clamp and a lower clamp, which are staggered in the vertical direction.

[0011] A cutting assembly is located on one side of the wire clamping assembly. The cutting assembly includes a cutting tool that can reciprocate along the cutting direction. When the cutting tool is extended, its cutting edge is located in the gap between the upper clamp and the lower clamp.

[0012] The first wire pressing group, the cutting group, and the second wire pressing group are arranged sequentially along the wire conveying direction.

[0013] Furthermore, a first clamping block group is provided between the first pressing wire group and the clamping wire group. The first clamping block group consists of a first upper clamping block and a first lower clamping block. The first upper clamping block is fixedly connected to the first upper pressing block, and the first lower clamping block is fixedly connected to the first lower pressing block. A second clamping block group is provided between the second pressing wire group and the clamping wire group. The second clamping block group consists of a second upper clamping block and a second lower clamping block. The second upper clamping block is fixedly connected to the second upper pressing block, and the second lower clamping block is fixedly connected to the second lower pressing block.

[0014] Furthermore, both the first and second upper clamping blocks are downwardly protruding V-shaped blocks, and the upper ends of both the first and second lower clamping blocks are provided with V-shaped grooves, with the V-shaped blocks and V-shaped grooves being adapted to each other. In this solution, the wire pressing assembly can clamp the metal wire together with the clamping block assembly. At this time, the metal wire is located between the V-shaped blocks and the V-shaped grooves, which can play a role in fastening.

[0015] Furthermore, both the upper and lower clamps are rotatable. In this design, the rotatable design of the upper and lower clamps allows for the rotation and bending of the beginning and end of the cut wire, preventing the yarn from unraveling.

[0016] Furthermore, both the upper and lower clamps can be moved vertically. In this design, the upper clamp is initially positioned above the metal wire, and the lower clamp is initially positioned below the metal wire. When the metal wire needs to be clamped, the upper and lower clamps move to their corresponding positions, positioning the metal wire between them. The vertical movement of the upper and lower clamps allows for alignment with the material receiving unit.

[0017] This utility model also provides a twist rod winding device, including the cutting mechanism described in any one of the above technical solutions.

[0018] Furthermore, the system also includes a wire feeding mechanism located on one side of the cutting mechanism. The wire feeding mechanism includes a wire feeding seat, within which a wire feeding roller and a wire guiding roller are installed. A guide plate is provided at the feeding end of the wire feeding seat, and the guide plate has a guide hole adapted to the diameter of the wire. In this design, both the wire feeding roller and the wire guiding roller are rotatable, used to assist in the conveying of the wire. The wire passes through the guide hole on the guide plate, which serves as a guide, preventing the wire from swaying during conveying.

[0019] Furthermore, it also includes a wire receiving mechanism located on the other side of the cutting mechanism. The wire receiving mechanism includes a receiving mounting frame that can reciprocate linearly along the wire feeding direction. The receiving mounting frame is equipped with a rotatable clamping member. In this solution, the wire receiving mechanism can clamp the wire and the yarn wound around it using the clamping member, and then move along a straight line away from the wire feeding mechanism via a driving device, rotating as it moves, thus achieving the winding of the yarn onto the wire.

[0020] Furthermore, the wire receiving mechanism is mounted on a track, and the receiving mounting frame is equipped with a drive unit for driving its reciprocating motion on the track. In this design, the track is parallel to the wire conveying direction. The drive unit can use gears and racks in conjunction with a motor to achieve reciprocating linear motion, or it can use an electric slide table or other similar equipment to achieve reciprocating linear motion.

[0021] Furthermore, the system also includes a yarn feeding mechanism, which comprises a yarn feeding frame and a yarn feeding rack. At least one yarn feeding group is mounted on the yarn feeding frame. The yarn feeding group includes a yarn feeding roller horizontally mounted on the yarn feeding frame and a guide mounting frame fixedly mounted on the yarn mounting frame. A yarn guide roller is mounted on the guide mounting frame. In this design, both the yarn feeding roller and the yarn guide roller are rotatable. The yarn feeding roller is connected to a drive device for winding yarn and releasing it via the drive device. The yarn guide roller assists in the yarn feeding process. The yarn feeding frame is fixed to the cutting mechanism and has at least one yarn dividing plate. At least one adjustable horizontal hanging ring is mounted on the yarn dividing plate. In this design, the position of the hanging ring can be horizontally adjusted to accommodate the feeding requirements of yarns of different thicknesses and to control the required spacing between the yarns.

[0022] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0023] The cutting mechanism and the torsion bar winding device included in this utility model are designed to automatically feed yarn and metal wire through a yarn feeding mechanism and a metal wire feeding mechanism, receive the torsion bar and perform winding processing through a metal wire receiving mechanism, and automatically clamp, cut and bend the ends of the torsion bar through a cutting mechanism. This reduces manual operation, has a high degree of automation, high production efficiency, strong practicality and is suitable for promotion. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the twisted rod winding device of this utility model.

[0025] Figure 2 This is a schematic diagram showing the structure and positional relationship of the cutting mechanism, wire feeding mechanism, wire receiving mechanism, and yarn feeding mechanism of this utility model.

[0026] Figure 3 This is a front view of the cutting mechanism of this utility model.

[0027] Figure 4 This is a schematic diagram of the back structure of the cutting mechanism of this utility model;

[0028] Figure 5 This is a schematic diagram of the cutting mechanism of this utility model;

[0029] Figure 6 This is a schematic diagram of the metal wire feeding mechanism of this utility model;

[0030] Figure 7 This is a schematic diagram of the metal wire feeding mechanism of this utility model;

[0031] Figure 8 This is a schematic diagram of the yarn feeding mechanism of this utility model;

[0032] In the above attached figures,

[0033] 1. Cutting mechanism; 11. First upper pressure block; 12. First lower pressure block; 13. Second upper pressure block; 14. Second lower pressure block; 15. Upper clamp; 16. Lower clamp; 17. Cutting tool; 18. First clamping block assembly; 19. Second clamping block assembly;

[0034] 2. Wire feeding mechanism; 21. Wire feeding seat; 22. Wire feeding roller; 23. Wire guiding roller; 24. Guide plate;

[0035] 3. Wire receiving mechanism; 31. Wire receiving mounting frame; 32. Clamping component; 33. Drive assembly;

[0036] 4. Track;

[0037] 5. Yarn feeding mechanism; 51. Yarn feeding rack; 52. Yarn feeding rack; 53. Yarn feeding roller; 54. Guide mounting frame; 55. Guide roller; 56. Yarn separating plate; 57. Hanging ring. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0039] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0042] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0043] Example 1:

[0044] A cutting mechanism 1, see appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, it includes:

[0045] The first wire pressing group includes a first upper pressing block 11 and a first lower pressing block 12 that can move up and down.

[0046] The second wire pressing group includes a second upper pressing block 13 and a second lower pressing block 14 that can move up and down.

[0047] The wire clamping group is located between the first wire pressing group and the second wire pressing group. The wire clamping group includes an upper clamp 15 and a lower clamp 16, which are staggered in the vertical direction.

[0048] The cutting assembly, located on one side of the wire clamping assembly, includes a cutting blade 17 that can reciprocate along the cutting direction. When extended, the cutting blade 17's cutting edge is positioned in the gap between the upper clamp 15 and the lower clamp 16. The cutting blade 17 can be, but is not limited to, pneumatic scissors, and its reciprocating movement in the first direction can be achieved by a driving device such as a cylinder. The cutting direction refers to the horizontal direction perpendicular to the wire conveying direction.

[0049] The first wire pressing group, the cutting group, and the second wire pressing group are arranged sequentially along the wire conveying direction.

[0050] See appendix Figure 3 As shown, a first clamping block group 18 is provided between the first pressing wire group and the clamping wire group. The first clamping block group 18 consists of a first upper clamping block and a first lower clamping block. The first upper clamping block is fixedly connected to the first upper pressing block 11, and the first lower clamping block is fixedly connected to the first lower pressing block 12. A second clamping block group 19 is provided between the second pressing wire group and the clamping wire group. The second clamping block group 19 consists of a second upper clamping block and a second lower clamping block. The second upper clamping block is fixedly connected to the second upper pressing block 13, and the second lower clamping block is fixedly connected to the second lower pressing block 14.

[0051] See appendix Figure 3As shown, both the first and second upper clamping blocks are downward-protruding V-shaped blocks, and the upper ends of both the first and second lower clamping blocks are provided with V-shaped grooves, which are fitted together. When the metal wire needs to be cut, the wire clamping assembly, along with the clamping block assembly, clamps the metal wire. At this time, the metal wire is located between the V-shaped blocks and the V-shaped grooves, which can serve as a fastener. The included angle of the V-shaped blocks is 60°-90°.

[0052] See appendix Figure 5 As shown, both the upper chuck 15 and the lower chuck 16 are rotatable. The rotatable design of the upper chuck 15 and lower chuck 16 allows for the rotation and bending of the beginning and end of the cut wire, preventing the yarn from unraveling. The upper chuck 15 and lower chuck 16 can employ, but are not limited to, rotating jaws. Both the upper chuck 15 and lower chuck 16 can move vertically. The initial position of the upper chuck 15 is above the metal wire, and the initial position of the lower chuck 16 is below the metal wire. When the metal wire needs to be clamped, the upper chuck 15 and lower chuck 16 move to the corresponding positions, placing the metal wire between them. The vertical movement of the upper chuck 15 and lower chuck 16 allows for avoidance of misalignment with the material receiving unit.

[0053] Example 2:

[0054] See appendix Figure 1 and attached Figure 2 As shown, a twisted rod winding device includes the cutting mechanism 1 in Embodiment 1.

[0055] For details, please see the appendix. Figure 6 As shown, it also includes a wire feeding mechanism 2, which is located on one side of the cutting mechanism 1. The wire feeding mechanism 2 includes a wire feeding seat 21, which is provided with a wire feeding roller 22 and a wire guiding roller 23. The feeding end of the wire feeding seat 21 is provided with a guide plate 24, which is provided with a guide hole that matches the diameter of the wire.

[0056] The wire feeding mechanism 2 is located upstream of the cutting mechanism 1. After the wire to be cut comes out from the wire feeding mechanism 2, it passes between the first wire pressing group, between the wire clamping group, and between the second wire pressing group in sequence.

[0057] Both the wire feeding roller 22 and the wire guiding roller 23 are rotatable. The wire feeding roller 22 is connected to the drive device for winding the metal wire and releasing it through the drive device. Multiple wire guiding rollers 23 can be provided to assist in the conveying of the metal wire. The metal wire passes through the guide hole on the guide plate 24, which serves as a guide to prevent the metal wire from shaking during conveying.

[0058] See appendix Figure 7As shown, it also includes a wire receiving mechanism 3, located on the other side of the cutting mechanism 1. The wire receiving mechanism 3 includes a receiving mounting frame 31, which can reciprocate linearly along the wire feeding direction. A rotatable clamping member 32 is provided on the receiving mounting frame 31. The wire receiving mechanism 3 is located downstream of the cutting mechanism 1. The wire receiving mechanism 3 can clamp the wire and the yarn wound on the wire through the clamping member 32, and then move in a straight line away from the wire feeding mechanism 2 by a drive device, rotating while moving, to realize the winding of the yarn on the wire. After winding is completed, the receiving mounting frame 31 returns to the initial position for the next clamping. The rotatable clamping member 32 can be, but is not limited to, a gripper cylinder.

[0059] See appendix Figure 1 As shown, the wire receiving mechanism 3 is mounted on the track 4. The receiving mounting frame 31 is equipped with a drive unit 33 for driving its reciprocating motion on the track 4. The drive unit 33 includes a servo motor and a rack and pinion transmission mechanism. The track 4 is parallel to the wire conveying direction. The drive unit 33 can achieve reciprocating linear motion using a gear and rack mechanism in conjunction with a servo motor, or it can achieve reciprocating linear motion using an electric slide table or other similar equipment.

[0060] See appendix Figure 8 As shown, it also includes a yarn feeding mechanism 5, which includes a yarn feeding frame 51 and a yarn feeding frame 52. At least one yarn feeding group is provided on the yarn feeding frame 51. The yarn feeding group includes a yarn feeding roller 53 horizontally arranged on the yarn feeding frame 51 and a guide mounting frame 54 fixedly arranged on the yarn mounting frame. A yarn guide roller 55 is provided on the guide mounting frame 54. Both the yarn feeding roller 53 and the yarn guide roller 55 are rotatable. The yarn feeding roller 53 is connected to a drive device for winding yarn and releasing it through the drive device. The yarn guide roller 55 assists in the conveying of yarn. Multiple yarn feeding rollers 53 and yarn guide rollers 55 can be provided, ensuring a one-to-one correspondence between them to meet the winding requirements of different quantities of yarn. Typically, one to three strands of yarn are wound around the metal wire.

[0061] A yarn feeder 52 is fixed to the cutting mechanism 1. At least one yarn distribution plate 56 is mounted on the yarn feeder 52, and at least one adjustable hanging ring 57 is mounted on the yarn distribution plate 56. Yarn can pass through the hanging ring 57 and be fed to the cutting mechanism 1, where it merges with the metal wire and is wound. The number of hanging rings 57 corresponds to the number of yarn strands, and the position of the hanging rings 57 is horizontally adjustable to accommodate the feeding needs of yarns of different thicknesses and to control the required spacing between the yarns. The hanging rings 57 are detachably mounted on the yarn distribution plate 56 using fastening bolts.

[0062] Working principle of the twisted rod winding device: During installation, the metal wire is wound on the wire feeding roller 22 of the metal wire feeding mechanism 2. The end of the metal wire is pulled out, passes through the guide roller 23, and then through the guide hole in the guide plate 24. Finally, the end of the metal wire is clamped by the clamping member 32 of the metal wire receiving mechanism 3. During installation, the yarn is wound on the yarn feeding roller 53 of the yarn feeding mechanism 5. The end of the yarn is pulled out, passes through the guide roller 55, and then through the hanging ring 57. Finally, together with the end of the metal wire, it is clamped by the clamping member 32 of the metal wire receiving mechanism 3. During winding, the clamping member 32 of the metal wire receiving mechanism 3 clamps the ends of the metal wire and the yarn and rotates them together. While rotating, it moves away from the guide plate 24 on the track 4 through the drive group 33, so that the distance of the yarn wound on the metal wire becomes longer and longer until the length reaches the standard, and then it is cut. During cutting, the first and second wire pressing groups of the cutting mechanism 1 press the wound twisted rod. Then, the upper clamp 15 and lower clamp 16 of the clamping group clamp a section of the twisted rod between the first and second wire pressing groups. Then, the cutting blade 17 extends to cut the section of the twisted rod between the upper clamp 15 and the lower clamp 16. Then, the upper clamp 15 and the lower clamp 16 rotate to bend the end of the twisted rod. After cutting, except for the first wire pressing group, each part resets according to the control system command. The metal wire receiving mechanism 3 moves on the track 4 towards the guide plate 24 through the drive group 33. After reaching the position below the upper clamp 15, the clamping member 32 clamps the twisted rod, realizing the re-receiving and reset of the first wire pressing group.

[0063] In addition, the pipe cleaner winding device is equipped with a protective net, and the cutting mechanism 1 and the wire feeding mechanism 2 are both equipped with protective covers, which improves safety.

[0064] The cutting mechanism 1 and the torpedo winding device comprising it designed in this utility model automatically feed yarn and metal wire through the yarn feeding mechanism 5 and the metal wire feeding mechanism 2, and receive and wind the torpedo sticks through the metal wire receiving mechanism 3. The cutting mechanism 1 automatically clamps, cuts, and bends the ends of the torpedo sticks, reducing manual operation, achieving a high degree of automation, high production efficiency, strong practicality, and suitability for widespread application. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made according to the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cutting mechanism, characterized in that, include: The first pressing wire assembly includes a first upper pressing block (11) and a first lower pressing block (12) that can move up and down. The second wire pressing group includes a second upper pressing block (13) and a second lower pressing block (14) that can move up and down. A wire clamping group is located between the first wire pressing group and the second wire pressing group. The wire clamping group includes an upper clamp (15) and a lower clamp (16), which are staggered in the vertical direction. A cutting assembly is located on one side of the wire clamping assembly. The cutting assembly includes a cutting tool (17) that can reciprocate along the cutting direction. When the cutting tool (17) is extended, its cutting edge is located in the gap between the upper clamp (15) and the lower clamp (16). The first wire pressing group, the cutting group, and the second wire pressing group are arranged sequentially along the wire conveying direction.

2. The cutting mechanism according to claim 1, characterized in that: A first clamping block group (18) is provided between the first pressing wire group and the clamping wire group. The first clamping block group (18) consists of a first upper clamping block and a first lower clamping block. The first upper clamping block is fixedly connected to the first upper pressing block (11), and the first lower clamping block is fixedly connected to the first lower pressing block (12). A second clamping block group (19) is provided between the second pressing wire group and the clamping wire group. The second clamping block group (19) consists of a second upper clamping block and a second lower clamping block. The second upper clamping block is fixedly connected to the second upper pressing block (13), and the second lower clamping block is fixedly connected to the second lower pressing block (14).

3. The cutting mechanism according to claim 2, characterized in that: Both the first upper clamping block and the second upper clamping block are downward protruding V-shaped blocks. The upper ends of both the first lower clamping block and the second lower clamping block are provided with V-shaped grooves, and the V-shaped blocks are adapted to fit the V-shaped grooves.

4. A cutting mechanism according to claim 1, characterized in that: Both the upper chuck (15) and the lower chuck (16) can be rotatably configured.

5. A cutting mechanism according to claim 1, characterized in that: Both the upper clamp (15) and the lower clamp (16) can be moved up and down.

6. A twisted rod winding device, characterized in that: Includes the cutting mechanism (1) as described in any one of claims 1 to 5.

7. A torsion bar winding device according to claim 6, characterized in that: It also includes a wire feeding mechanism (2), which is located on one side of the cutting mechanism (1); the wire feeding mechanism (2) includes a wire feeding seat (21), which is provided with a wire feeding roller (22) and a wire guiding roller (23), and the feeding end of the wire feeding seat (21) is provided with a guide plate (24), which is provided with a guide hole adapted to the diameter of the wire.

8. A torsion bar winding device according to claim 7, characterized in that: It also includes a wire receiving mechanism (3), which is located on the other side of the cutting mechanism (1); the wire receiving mechanism (3) includes a receiving mounting frame (31), which can reciprocate linearly along the wire feeding direction, and the receiving mounting frame (31) is provided with a rotatable clamping member (32).

9. A torsion bar winding device according to claim 8, characterized in that: The wire receiving mechanism (3) is mounted on the track (4), and the receiving mounting frame (31) is provided with a drive group (33) for driving it to move back and forth on the track (4).

10. A torsion bar winding device according to claim 6, characterized in that: It also includes a yarn feeding mechanism (5), which includes a yarn feeding rack (51) and a yarn feeding rack (52). At least one yarn feeding group is provided on the yarn feeding rack (51). The yarn feeding group includes a yarn feeding roller (53) horizontally arranged on the yarn feeding rack (51) and a guide mounting frame (54) fixedly arranged on the yarn mounting frame. A yarn guide roller (55) is provided on the guide mounting frame (54). The yarn feeding rack (52) is fixed on the cutting mechanism (1). At least one yarn dividing plate (56) is provided on the yarn feeding rack (52), and at least one adjustable horizontal hanging ring (57) is provided on the yarn dividing plate (56).

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