High-efficiency yarn guide device of a drum machine

Abstract

The utility model relates to a yarn guide device technical field especially relates to a kind of high-efficiency yarn guide device of big round machine, including yarn guide disc, the inner cavity is obtained in yarn guide disc inside, the inside center of inner cavity is equipped with driving gear, the inner ring of inner cavity is equipped with inner gear ring, a plurality of planetary gears are meshed and connected between driving gear and inner gear ring, a plurality of the planetary gears are respectively driven and connected with adjusting assembly.The utility model drives planetary gear to drive adjusting assembly movement by driving motor, to make yarn guide rod drive yarn guide assembly movement, realize that the position of yarn guide assembly is adjustable, without manual disassembly adjustment, reduce downtime, simultaneously, through the passive response yarn tension fluctuation of the elastic action of yarn guide rod and realize dynamic adjustment, make yarn guide assembly always contact with yarn, by setting several groups of yarn guide assembly, yarn is supported in multiple sections, yarn is evenly subjected to tension effect in guiding process, effectively reduce the fault that yarn collapses or is mutually entangled in conveying process, to improve guiding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of yarn guiding device technology, and in particular to a high-efficiency yarn guiding device for a large circular knitting machine. Background Technology

[0002] The circular knitting machine, also known as a circular weft knitting machine, is a core piece of equipment in the knitting industry used for the mass production of knitted fabrics. It is widely used in the production of clothing fabrics, home textiles, and industrial textiles. The yarn guiding device is an indispensable key component of the circular knitting machine. It is installed between the yarn frame and the knitting mechanism. Its main function is to accurately and stably transport the yarn on the yarn bobbin to the knitting needles according to a preset path, ensuring the continuous operation of the knitting process. Traditional yarn guiding devices typically have fixed yarn guiding components. When it is necessary to adjust the yarn tension or path according to the yarn type, thickness, or knitting process, manual disassembly and readjustment are required. This is not only cumbersome and time-consuming, but also causes the circular knitting machine to stop and wait, severely affecting production continuity and reducing overall production efficiency. Furthermore, due to the lack of an adjustment mechanism, when the yarn tension fluctuates, it cannot respond and adjust in real time, which can easily lead to yarn breakage, tangling, and other malfunctions, requiring machine shutdown and further affecting the knitting efficiency of the circular knitting machine. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency yarn guiding device for a circular knitting machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency yarn guiding device for a circular knitting machine includes a yarn guiding disc with an inner cavity. A drive gear is located at the center of the inner cavity, and an inner gear ring is installed on the inner ring of the cavity. A plurality of planetary gears mesh between the drive gear and the inner gear ring. Each of the planetary gears drives an adjusting assembly. The adjusting assembly includes an adjusting frame and a yarn guiding rod. One end of the adjusting frame is connected to the planetary gears, and the yarn guiding rod is fixedly connected to the adjusting frame. A yarn guiding component is installed at the end of the yarn guiding rod. A drive motor is installed on the bottom surface of the yarn guiding disc, and the output end of the drive motor passes through the yarn guiding disc and is driven by the drive gear.

[0005] Preferably, the adjusting frame includes long shafts coaxially mounted on both ends of the planetary gear, with connecting blocks mounted on both ends of the long shafts. The other ends of the connecting blocks extend outward from the center along the radial direction of the yarn guide disc, and the other ends of the connecting blocks at both ends are connected to a base plate. The yarn guide rod is fixedly mounted on the base plate.

[0006] Preferably, the yarn guide disc is provided with limiting grooves on both the upper and lower end faces, and the long shafts at both ends pass through the upper and lower end faces of the yarn guide disc and are slidably connected to the limiting grooves.

[0007] Preferably, a support assembly is connected between the yarn guide rod and the yarn guide disc. The support assembly includes a fixed seat that is fixedly installed on the outer wall of the inner tooth ring. A connecting rod is rotatably connected to the fixed seat. A sliding sleeve is rotatably connected to the other end of the connecting rod. The sliding sleeve is slidably fitted onto the outside of the body of the yarn guide rod.

[0008] Preferably, the yarn guide rod is an arc-shaped rod.

[0009] Preferably, the yarn guiding assembly includes a fixed sleeve fixedly connected to the yarn guiding rod, an extension rod is installed on the fixed sleeve, the extension rod passes through the fixed sleeve and extends symmetrically outward at both ends of the fixed sleeve in the radial direction, and at least one set of guide wheels is rotatably connected to the extension rod at both ends.

[0010] Preferably, the guide wheel has an annular concave yarn guide groove in the middle.

[0011] Preferably, a fixed base is installed on the outer peripheral sidewall of the yarn guide disc, and the fixed base is provided with a fitting hole.

[0012] Preferably, the fixed base has a limiting hole laterally opened in the direction away from the yarn guide plate, and the limiting hole is connected to the fitting hole, and the limiting hole is connected to the limiting bolt by a thread.

[0013] Compared with the prior art, this utility model provides a high-efficiency yarn guiding device for a circular knitting machine, which has the following beneficial effects: This invention uses a drive motor to drive planetary gears, which in turn move the adjustment components. This, in turn, moves the yarn guide rod and the yarn guide assembly, allowing the position of the yarn guide assembly to be adjustable without manual disassembly and adjustment, thus reducing downtime. Simultaneously, the elasticity of the yarn guide rod passively responds to yarn tension fluctuations, achieving dynamic adjustment and ensuring the yarn guide assembly remains in contact with the yarn. By setting up several sets of yarn guide assemblies to provide multi-segment support for the yarn, the yarn is evenly subjected to tension during the guiding process, effectively reducing the risk of yarn collapse or tangling during transport, thereby improving yarn guiding efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front upper three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the front lower left three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 This is a top view of the yarn guiding structure of this utility model; Figure 5 This is a three-dimensional structural diagram showing the connection state of the planetary gear, support assembly, and adjustment assembly of this utility model. Figure 6 This is a three-dimensional structural diagram of the yarn guide assembly of this utility model.

[0015] In the diagram: 1. Yarn guide plate; 11. Inner cavity; 12. Fixed base; 121. Fitting hole; 13. Limiting groove; 2. Internal gear ring; 3. Support assembly; 31. Fixed seat; 32. Connecting rod; 33. Sliding sleeve; 4. Planetary gear; 5. Adjustment assembly; 51. Adjustment frame; 511. Long shaft; 512. Connecting block; 513. Base plate; 52. Yarn guide rod; 6. Yarn guide assembly; 61. Fixed sleeve; 62. Extension rod; 63. Guide wheel; 7. Drive gear; 8. Drive motor; 9. Limiting bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0018] Example, refer to Figure 1 - Figure 6A high-efficiency yarn guiding device for a large circular knitting machine includes a yarn guiding disc 1. The yarn guiding disc 1 has an inner cavity 11. A drive tooth 7 is located at the center of the inner cavity 11. An inner gear ring 2 is installed on the inner ring of the inner cavity 11. Several planetary gears 4 are meshed between the drive tooth 7 and the inner gear ring 2. The rotation of the drive tooth 7 synchronously drives the planetary gears 4 to rotate synchronously, and the planetary gears 4 also rotate slightly on their own axis. Each of the planetary gears 4 drives an adjusting component 5. The adjusting component 5 includes an adjusting frame 51 and a yarn guiding rod 52. Each of the planetary gears 4 rotates independently, thereby driving the adjusting component 5 to rotate, causing the opening angle of the adjusting component 5 to change, thus supporting the yarn. One end of the adjusting frame 51 is connected to the planetary gears 4, and the yarn guiding rod 52 is fixedly connected to the adjusting frame 51. A yarn guide assembly 6 is installed at the end of 2. The yarn guide rod 52 is used to support the installation of the yarn guide assembly 6. The yarn guide assembly 6 is used to pull the yarn. A drive motor 8 is installed on the bottom surface of the yarn guide disk 1. The drive motor 8 is a 57HS22 two-phase stepper motor. The output end of the drive motor 8 passes through the yarn guide disk 1 and is connected to the drive gear 7. Thus, the drive gear 7 moves, driving several planetary gears 4 to move synchronously. This, in turn, drives the yarn guide rod 52 to move through the adjustment frame 51. This causes the several yarn guide rods 52 to rotate around the center of the corresponding planetary gear 4 as the rotation axis, thereby expanding the yarn guide disk 1 to the outside. This, in turn, causes several yarn guide assemblies 6 to contact the yarn. Thus, the yarn is supported at multiple ends along the movement path of the yarn, preventing the yarn from collapsing due to lack of tension during the conveying process.

[0019] Furthermore, the adjusting frame 51 includes long shafts 511 coaxially mounted on both ends of the planetary gear 4. Connecting blocks 512 are mounted on both ends of the long shafts 511. The other ends of the connecting blocks 512 extend outward from the center along the radial direction of the yarn guide plate 1. The other ends of the connecting blocks 512 are connected to the base plate 513. The yarn guide rod 52 is fixedly mounted on the base plate 513. When the planetary gear 4 is driven by the drive wheel, the adjusting frame 51 drives the yarn guide rod 52 to move synchronously, thereby adjusting the position of the yarn guide rod 52. The yarn guide rod 52 drives the yarn guide assembly 6 to move, so that the yarn guide assembly 6 contacts the yarn and is used to support the yarn transport.

[0020] Furthermore, the upper and lower end faces of the yarn guide plate 1 are provided with limiting grooves 13, and the long shafts 511 at both ends pass through the upper and lower end faces of the yarn guide plate 1 and are slidably connected to the limiting grooves 13. This is used to constrain the maximum travel of the planetary gear 4 under the driving force of the drive wheel, and at the same time guide and limit the movement of the adjusting frame 51, so as to ensure that the adjusting frame 51 and the yarn guide rod 52 move stably along the circumference of the yarn guide plate 1.

[0021] Furthermore, a support assembly 3 is connected between the yarn guide rod 52 and the yarn guide disc 1. The support assembly 3 includes a fixed seat 31 fixedly installed on the outer wall of the inner gear ring 2. A connecting rod 32 is rotatably connected to the fixed seat 31. A sliding sleeve 33 is rotatably connected to the other end of the connecting rod 32. The sliding sleeve 33 is slidably fitted on the outside of the body of the yarn guide rod 52. When the yarn guide rod 52 moves, the sliding sleeve 33 slides along the body of the rod. The two ends of the connecting rod 32 rotate around the fixed seat 31 and the sliding sleeve 33 respectively, thereby forming dynamic support for the yarn guide rod 52.

[0022] Furthermore, the yarn guide rod 52 is an arc-shaped rod, which has a certain degree of bending resistance and elastic deformation capability. When the yarn guide rod 52 contacts the yarn, the yarn applies a compressive force to the yarn guide rod 52 through the yarn guide assembly 6 due to the traction force. The yarn guide rod 52 can bend towards its center end to offset the pressure of the yarn, and apply an elastic force to the yarn in the opposite direction through the yarn guide assembly 6, so that the yarn between two adjacent yarn guide assemblies 6 can be tightened, avoiding collapse during the conveying process and improving the smoothness of the yarn guiding process.

[0023] Furthermore, the yarn guiding assembly 6 includes a fixed sleeve 61 fixedly connected to the yarn guiding rod 52. An extension rod 62 is installed on the fixed sleeve 61. The extension rod 62 passes through the fixed sleeve 61 and extends symmetrically outward at both ends of the fixed sleeve 61 in the radial direction. At least one set of guide wheels 63 are rotatably connected to the extension rod 62 at both ends. When the yarn passes through the guide wheel 63, the guide wheel 63 rotates synchronously with the traction of the yarn, thereby reducing the friction between the yarn and the yarn guiding assembly 6 and reducing yarn wear. When it is necessary to wind and twist the yarns on multiple yarn bobbins into a single roving, the number of guide wheels 63 installed on the extension rod 62 can be flexibly adjusted according to the requirements, thereby guiding multiple yarns to be fed parallel to each other along the same yarn guiding path to one end of the circular knitting machine, so that multiple strands of yarn can enter the circular knitting machine at the same time, so that the circular knitting machine can synchronously twist and wind the multiple strands of yarn to form a single roving for weaving.

[0024] Furthermore, the guide wheel 63 has an annular concave yarn guide groove in the middle to accommodate the yarn and restrict the lateral displacement of the yarn.

[0025] Furthermore, a fixed base 12 is installed on the outer peripheral side wall of the yarn guide plate 1. The fixed base 12 is provided with a fitting hole 121. The fixing device provided on the circular knitting machine passes through the fitting hole 121, thereby fixing the yarn guide device on the circular knitting machine, ensuring that it remains stable when the circular knitting machine is working, and avoiding the yarn guiding effect being affected by vibration, etc.

[0026] Furthermore, a limiting hole is laterally opened inside the fixed base 12 in the direction away from the yarn guide plate 1, and the limiting hole is connected to the fitting hole 121. A limiting bolt 9 is connected in the limiting hole by a thread. The limiting bolt 9 moves along the axial direction of the limiting hole by the thread, so that its end passes through the side wall of the limiting hole and abuts against the fixing device of the large circular knitting machine, thereby preventing the entire yarn guide device from rotating.

[0027] Working principle: The yarn guiding device is installed on the circular knitting machine through the fixed base 12. The limit bolt 9 is tightened to fix the yarn guiding device. The drive motor 8 is started and drives the active gear 7 to rotate counterclockwise through the output shaft. The active gear 7 meshes with the inner gear ring 2 and drives the planetary gear 4 to revolve around the active gear 7 synchronously. At the same time, the planetary gear 4 rotates on its own axis slightly. The rotation of the planetary gear 4 drives the connecting block 512 of the adjusting frame 51 and the base plate 513 to move through the long shaft 511. This pushes the yarn guiding rod 52 to open outward around the axis of the planetary gear 4, so that the yarn guiding component 6 at the end of the yarn guiding rod 52 gradually approaches the yarn. The yarn guide 63 contacts the yarn, making the yarn between adjacent yarn guiding components 6 taut.

[0028] The yarn guide assembly 6 has an extension rod 62, and the number of guide wheels 63 can be increased on the extension rod 62 as needed, thereby guiding multiple groups of yarns into the circular knitting machine in parallel, so as to realize the synchronous twisting of multiple strands of yarn into roving.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency yarn guiding device for a circular knitting machine, comprising a yarn guiding disc (1), wherein the yarn guiding disc (1) has an inner cavity (11), characterized in that: The inner cavity (11) has an active tooth (7) at its center, and an inner tooth ring (2) is installed on the inner ring of the inner cavity (11). The active tooth (7) and the inner tooth ring (2) are meshed and connected by a number of planetary gears (4). The planetary gears (4) are respectively driven and connected to an adjustment component (5). The adjustment component (5) includes an adjustment frame (51) and a yarn guide rod (52). One end of the adjustment frame (51) is connected to the planetary gear (4). The yarn guide rod (52) is fixedly connected to the adjustment frame (51). A yarn guide component (6) is installed at the end of the yarn guide rod (52). A drive motor (8) is installed on the bottom surface of the yarn guide disk (1). The output end of the drive motor (8) passes through the yarn guide disk (1) and is driven and connected to the active tooth (7).

2. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 1, characterized in that, The adjusting frame (51) includes a long shaft (511) coaxially mounted on both ends of the planetary gear (4). Connecting blocks (512) are mounted on the long shafts (511) at both ends. The other ends of the connecting blocks (512) extend outward from the center along the radial direction of the yarn guide disc (1). The other ends of the connecting blocks (512) at both ends are connected to the base plate (513). The yarn guide rod (52) is fixedly mounted on the base plate (513).

3. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 2, characterized in that, The yarn guide plate (1) has a limiting groove (13) on both the upper and lower end surfaces. The long shafts (511) at both ends pass through the upper and lower end surfaces of the yarn guide plate (1) and are slidably connected to the limiting grooves (13).

4. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 2, characterized in that, A support assembly (3) is connected between the yarn guide rod (52) and the yarn guide disc (1). The support assembly (3) includes a fixed seat (31) fixedly installed on the outer wall of the inner tooth ring (2). A connecting rod (32) is rotatably connected to the fixed seat (31). A sliding sleeve (33) is rotatably connected to the other end of the connecting rod (32). The sliding sleeve (33) is slidably fitted on the outside of the body of the yarn guide rod (52).

5. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 4, characterized in that, The yarn guide rod (52) is an arc-shaped rod.

6. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 1, characterized in that, The yarn guide assembly (6) includes a fixed sleeve (61) fixedly connected to the yarn guide rod (52). An extension rod (62) is installed on the fixed sleeve (61). The extension rod (62) passes through the fixed sleeve (61) and extends outward symmetrically at both ends of the fixed sleeve (61) in the radial direction. At least one set of guide wheels (63) is rotatably connected to the extension rod (62) at both ends.

7. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 6, characterized in that, The guide wheel (63) has an annular concave yarn guide groove in the middle.

8. The high-efficiency yarn guiding device for a large circular knitting machine according to claim 1, characterized in that, A fixed base (12) is installed on the outer peripheral side wall of the yarn guide disc (1), and the fixed base (12) has a longitudinal fitting hole (121).

9. A high-efficiency yarn guiding device for a large circular knitting machine according to claim 8, characterized in that, The fixed base (12) has a limiting hole in the direction away from the yarn guide plate (1) and the limiting hole is connected to the fitting hole (121). A limiting bolt (9) is connected to the limiting hole by thread.

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