Flat knitting machine yarn guide mechanism with quick yarn changing device

Abstract

The utility model relates to the technical field of knitting machines, in particular to a flat knitting machine yarn guide mechanism with a quick yarn changing device, which comprises a base, a wind-up roller, a servo motor and a replacing device, the wind-up roller is arranged on the surface of the base, the servo motor is fixed at one end of the base, the replacing device is arranged on the surface of the base, and the replacing device comprises a turntable. The servo motor is arranged on the base, the rotating disc is rotationally connected with the base, the surface of the base is fixedly connected with two clamping sleeves, and the two clamping sleeves are arranged at the driving end of the servo motor and one side of the rotating disc respectively. The winding roller can be conveniently and rapidly taken down, after replacement is completed, fixing can be automatically completed after the pull rod is loosened, it is guaranteed that when the servo motor drives the clamping sleeve to rotate, yarn can be normally wound by the winding roller, the replacement efficiency of the winding roller is improved, and the downtime is shortened.

Description

Technical Field

[0001] This utility model relates to the field of knitting machine technology, and in particular to a yarn guiding mechanism for a flat knitting machine with a quick yarn changing device. Background Technology

[0002] The yarn guiding mechanism of a flat knitting machine is an important component, mainly used to guide the yarn smoothly from the spindle into the knitting area. It typically includes components such as a yarn guiding device, a yarn guide, a guide plate, and a yarn guide fixing device. The yarn guiding device introduces the yarn from the spindle into the yarn guide, which ensures that the yarn reaches the needle plate through the correct path. The guide plate further guides the yarn from the yarn guide to the needle plate, and the yarn guide fixing device ensures that the distance between the yarn guide and the needle plate is appropriate to maintain the stability of the yarn guidance, thereby improving the efficiency and production quality of the flat knitting machine.

[0003] However, traditional yarn guiding mechanisms rely on mechanical knobs, bolts and other fixed yarn guiding components. When changing yarn, it is necessary to repeatedly disassemble and install parts, which requires a high level of skill from the operator. Novices are prone to problems such as yarn tangling and yarn guide nozzle positioning deviation due to improper operation. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the existing technology where traditional yarn guiding mechanisms rely on mechanical knobs, bolts and other fixed yarn guiding components, requiring repeated disassembly and installation of parts when changing yarn, which requires a high level of operator proficiency, and novices are prone to yarn tangling and yarn guide nozzle positioning deviation due to improper operation. Therefore, a yarn guiding mechanism for knitting flat knitting machines with a quick yarn changing device is proposed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a yarn guiding mechanism for a flat knitting machine with a quick yarn changing device, comprising a base, a take-up roller, a servo motor, and a replacement device. The take-up roller is disposed on the surface of the base, the servo motor is fixed to one end of the base, and the replacement device is disposed on the surface of the base. The replacement device includes a turntable, which is rotatably connected to the base. Two retaining sleeves are fixedly connected to the surface of the base, and the two retaining sleeves are respectively disposed on the drive end of the servo motor and one side of the turntable. The inner wall has slots, and the two ends of the take-up roller have sliding grooves. Push rods are slidably connected to the inner walls of the sliding grooves at both ends of the take-up roller. One end of the push rod is fixedly connected to an insert rod, which is inserted into the ferrule. By setting a replacement device, the take-up roller can be quickly disassembled and fixed. When the take-up roller needs to be replaced, pulling the pull rod can release the restraint on the take-up roller, making it easy and quick to remove. After replacement, releasing the pull rod can automatically fix it, ensuring that the take-up roller can normally wind up the yarn when the servo motor drives the ferrule to rotate. This improves the take-up roller replacement efficiency and reduces downtime.

[0006] Preferably, a cylinder is fixedly connected to one end of the take-up roller near the push rod, and the push rod is slidably connected to the cylinder. By setting the push rod, the pulling force of the pull rod is converted into the movement of the insertion rod, thereby realizing the quick disassembly and fixation of the take-up roller.

[0007] Preferably, the inner wall of the push rod has a groove, and a spring is fixedly connected to the inner wall of the push rod. The end of the spring away from the push rod is fixedly connected to the take-up roller. By setting the spring, when the take-up roller needs to be replaced, the operator pulls the pull rod, which drives the push rod to overcome the spring force and separate the insert rod from the sleeve. At this time, the spring is in a compressed state and stores elastic potential energy.

[0008] Preferably, a pull rod is fixedly connected to the upper surface of the push rod. There are two push rods, which are symmetrically arranged. By setting the pull rod, the push rod is driven to separate the insertion rod from the sleeve, thereby releasing the fixing constraint on the take-up roller so that the take-up roller can be removed for replacement. After the replacement is completed and the pull rod is released, it loses its external force. The elastic force of the replacement device squeezes the push rod, causing the push rod to drive the insertion rod to re-insert into the sleeve to complete the fixation, thereby realizing the quick installation and locking of the take-up roller.

[0009] Preferably, a traction component is provided on one side of the base. The traction component includes a DC motor, which is fixedly connected to the base. A threaded rod is fixedly connected to the drive end of the DC motor. The end of the threaded rod away from the DC motor is rotatably connected to the base. A movable rod is fixedly connected to the surface of the base. A sliding plate is slidably connected to the surface of the movable rod. A wheel is rotatably connected to the upper surface of the sliding plate. By setting up the traction component, the yarn is ensured to be evenly distributed on the take-up roller. The DC motor drives the threaded rod to rotate, which drives the sliding plate and the wheel to push the yarn, reducing the accumulation of yarn on the take-up roller. This effectively solves the problems of irregular take-up and easy tangling caused by yarn accumulation, and improves the quality and effect of yarn take-up.

[0010] Preferably, there are two movable rods, which are respectively set at both ends of the threaded rod. By setting the threaded rod, it rotates under the drive of a DC motor. Through the threaded transmission, the slide plate slides in a straight line along the movable rod, thereby causing the wheel on the slide plate to push the yarn, so as to achieve uniform yarn distribution on the surface of the take-up roller and reduce yarn accumulation in a certain place on the take-up roller.

[0011] Preferably, the wheel is located at the front end of the take-up roller, and the slide plate is circular. By setting the wheel, the slide plate drives the wheel to contact the yarn. The wheel reduces frictional damage to the yarn through its own rolling motion. At the same time, the linear motion of the slide plate is converted into a lateral thrust on the yarn, causing the yarn to move laterally on the surface of the take-up roller. This achieves uniform distribution of the yarn along the axial direction of the take-up roller, reduces yarn accumulation in the same position, and improves the take-up quality.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a replacement device, when the take-up roller needs to be replaced, pulling the pull rod causes the push rod to separate from the insertion rod and the clamp. Then, pulling the take-up roller can remove it. When the pull rod is released, the replacement loses its restraint and generates elastic force to squeeze the push rod. The push rod drives the insertion rod to insert into the clamp to complete the fixation. When the servo motor drives the clamp to rotate, it can drive the take-up roller to rotate and normally wind up the yarn. By setting a replacement device, the quick disassembly and fixation of the take-up roller can be realized. When the take-up roller needs to be replaced, pulling the pull rod can release the restraint on the take-up roller, making it easy and quick to remove. After the replacement is completed, releasing the pull rod can automatically complete the fixation, ensuring that the take-up roller can normally wind up the yarn when the servo motor drives the clamp to rotate, improving the take-up roller replacement efficiency and reducing downtime.

[0014] 2. In this utility model, by setting a traction component, when the take-up roller is winding the yarn, the yarn tends to accumulate on the take-up roller. When the DC motor is started to drive the threaded rod to rotate, the threaded rod drives the slide plate to slide along the moving rod. When the slide plate moves, it drives the wheel to push the yarn, and the yarn is evenly distributed along the surface of the take-up roller, reducing the accumulation in one place. By setting a traction component, the yarn is evenly distributed on the take-up roller. The DC motor drives the threaded rod to rotate, which drives the slide plate and the wheel to push the yarn, reducing the accumulation of yarn on the take-up roller. This effectively solves the problems of irregular winding and easy tangling caused by yarn accumulation, and improves the quality and effect of yarn winding. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a yarn guiding mechanism for a flat knitting machine with a quick yarn changing device is provided for this utility model.

[0016] Figure 2 A side view of the yarn guiding mechanism of a flat knitting machine with a quick yarn changing device is provided for this utility model.

[0017] Figure 3 This utility model provides a schematic diagram of the replacement device structure for the yarn guiding mechanism of a knitting flat knitting machine with a quick yarn changing device.

[0018] Figure 4 This invention proposes a yarn guiding mechanism for a flat knitting machine with a quick yarn changing device. Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 This utility model presents a schematic diagram of the traction component structure of a knitting flat knitting machine with a quick yarn changing device for the yarn guiding mechanism.

[0020] Legend: 1. Base; 2. Take-up roller; 3. Servo motor; 4. Replacement device; 41. Push rod; 42. Pull rod; 43. Cylinder; 44. Spring; 45. Traction assembly; 451. Moving rod; 452. Threaded rod; 453. DC motor; 454. Slide plate; 455. Wheel; 46. Sleeve; 47. Insert rod; 48. Turntable. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a yarn guiding mechanism for a flat knitting machine with a quick yarn changing device, including a base 1, a take-up roller 2, a servo motor 3 and a replacement device 4. The take-up roller 2 is disposed on the surface of the base 1, the servo motor 3 is fixed at one end of the base 1, and the replacement device 4 is disposed on the surface of the base 1.

[0022] In this implementation scheme: the replacement device 4 includes a turntable 48, which is rotatably connected to the base 1. A retaining sleeve 46 is fixedly connected to the surface of the base 1. There are two retaining sleeves 46, which are respectively located at the drive end of the servo motor 3 and one side of the turntable 48. The inner wall of the retaining sleeve 46 has a slot. The two ends of the take-up roller 2 have sliding grooves. The inner walls of the sliding grooves at both ends of the take-up roller 2 are slidably connected to push rods 41. One end of the push rod 41 is fixedly connected to an insertion rod 47, which is inserted into the retaining sleeve 46. By setting the replacement device 4, the take-up roller 2 can be quickly disassembled and fixed. When the take-up roller 2 needs to be replaced, pulling the pull rod 42 can release the restraint on the take-up roller 2, making it easy and quick to remove the take-up roller 2. After the replacement is completed, releasing the pull rod 42 can automatically complete the fixing, ensuring that the take-up roller 2 can normally take up the yarn when the servo motor 3 drives the retaining sleeve 46 to rotate, thus improving the replacement efficiency of the take-up roller 2 and reducing downtime.

[0023] Specifically, a cylinder 43 is fixedly connected to one end of the take-up roller 2 near the push rod 41. The push rod 41 is slidably connected to the cylinder 43. By setting the push rod 41, the pulling force of the pull rod 42 is converted into the movement of the insertion rod 47, thereby realizing the quick disassembly and fixation of the take-up roller 2.

[0024] Specifically, the inner wall of the push rod 41 has a groove, and a spring 44 is fixedly connected to the inner wall of the push rod 41. The end of the spring 44 away from the push rod 41 is fixedly connected to the take-up roller 2. By setting the spring 44, when the take-up roller 2 needs to be replaced, the operator pulls the pull rod 42, which drives the push rod 41 to overcome the elastic force of the spring 44, so that the insertion rod 47 is separated from the sleeve 46. At this time, the spring 44 is in a compressed state and stores elastic potential energy.

[0025] Specifically, a pull rod 42 is fixedly connected to the upper surface of the push rod 41. There are two push rods 41, which are symmetrically arranged. By setting the pull rod 42, the push rod 41 is driven to separate the insertion rod 47 from the sleeve 46, thereby releasing the fixing constraint on the take-up roller 2 so that the take-up roller 2 can be removed for replacement. After the replacement is completed and the pull rod 42 is released, it loses its external force. The elastic force of the replacement device 4 squeezes the push rod 41, causing the push rod 41 to drive the insertion rod 47 to re-insert into the sleeve 46 to complete the fixation, thereby realizing the quick installation and locking of the take-up roller 2.

[0026] Specifically, a traction component 45 is provided on one side of the base 1. The traction component 45 includes a DC motor 453, which is fixedly connected to the base 1. A threaded rod 452 is fixedly connected to the drive end of the DC motor 453. The end of the threaded rod 452 away from the DC motor 453 is rotatably connected to the base 1. A movable rod 451 is fixedly connected to the surface of the base 1. A sliding plate 454 is slidably connected to the surface of the movable rod 451. A wheel 455 is rotatably connected to the upper surface of the sliding plate 454. By setting up the traction component 45, the yarn is ensured to be evenly distributed on the take-up roller 2. The DC motor 453 drives the threaded rod 452 to rotate, which drives the sliding plate 454 and the wheel 455 to push the yarn, reducing the accumulation of yarn on the take-up roller 2. This effectively solves the problems of irregular winding and easy tangling caused by yarn accumulation, and improves the quality and effect of yarn winding.

[0027] Specifically, there are two moving rods 451, which are respectively set at both ends of the threaded rod 452.

[0028] In this embodiment: by setting a threaded rod 452, which rotates under the drive of a DC motor 453, the threaded transmission drives the slide plate 454 to slide linearly along the moving rod 451, thereby causing the wheel 455 on the slide plate 454 to push the yarn, so as to achieve uniform yarn distribution on the surface of the take-up roller 2 and reduce yarn accumulation in a certain place on the take-up roller 2.

[0029] Specifically, the circular wheel 455 is located at the front end of the take-up roller 2, and the slide plate 454 is circular.

[0030] In this embodiment: by setting a wheel 455, which contacts the yarn under the drive of the slide plate 454, the wheel 455 reduces frictional damage to the yarn through its own rolling, and at the same time converts the linear motion of the slide plate 454 into a lateral thrust on the yarn, so that the yarn moves laterally on the surface of the take-up roller 2, thereby achieving uniform distribution of the yarn along the axial direction of the take-up roller 2, reducing the accumulation of yarn in the same position, and improving the take-up quality.

[0031] Working principle: By setting up the replacement device 4, when the take-up roller 2 needs to be replaced, pulling the pull rod 42 will cause the push rod 41 to separate from the insertion rod 47 and the clamp 46. Then, pulling the take-up roller 2 can remove the take-up roller 2. When the pull rod 42 is released, the replacement loses its restraint and generates elastic force to squeeze the push rod 41. The push rod 41 drives the insertion rod 47 to insert into the clamp 46 to complete the fixation. When the servo motor 3 drives the clamp 46 to rotate, it can drive the take-up roller 2 to rotate and normally wind up the yarn. By setting up the replacement device 4, the take-up roller 2 can be quickly disassembled and fixed. When the take-up roller 2 needs to be replaced, pulling the pull rod 42 can release the restraint on the take-up roller 2, and the take-up roller 2 can be easily and quickly removed. After the replacement is completed, releasing the pull rod 42 can automatically complete the fixation. This ensures that the take-up roller 2 can normally wind up the yarn when the servo motor 3 drives the clamp 46 to rotate, improving the replacement efficiency of the take-up roller 2 and reducing downtime.

[0032] By setting up the traction component 45, when the yarn is being wound up by the take-up roller 2, the yarn tends to accumulate on the take-up roller 2. When the DC motor 453 is started to drive the threaded rod 452 to rotate, the threaded rod 452 drives the slide plate 454 to slide along the moving rod 451. When the slide plate 454 moves, it drives the wheel 455 to push the yarn, so that the yarn is evenly distributed along the surface of the take-up roller 2, reducing the accumulation in one place. By setting up the traction component 45, the yarn is ensured to be evenly distributed on the take-up roller 2. The DC motor 453 drives the threaded rod 452 to rotate, which drives the slide plate 454 and the wheel 455 to push the yarn, reducing the accumulation of yarn on the take-up roller 2. This effectively solves the problems of irregular winding and easy tangling caused by yarn accumulation, and improves the quality and effect of yarn winding.

Claims

1. A yarn guiding mechanism for a flat knitting machine with a quick yarn changing device, comprising a base (1), a take-up roller (2), a servo motor (3), and a changing device (4), characterized in that: The take-up roller (2) is disposed on the surface of the base (1), the servo motor (3) is fixed at one end of the base (1), and the replacement device (4) is disposed on the surface of the base (1). The replacement device (4) includes a turntable (48), which is rotatably connected to the base (1). A retainer (46) is fixedly connected to the surface of the base (1). There are two retainers (46), which are respectively located at the drive end of the servo motor (3) and one side of the turntable (48). The inner wall of the retainer (46) is provided with a slot. The two ends of the take-up roller (2) are respectively provided with a sliding groove. The inner wall of the sliding groove at both ends of the take-up roller (2) is slidably connected with a push rod (41). One end of the push rod (41) is fixedly connected with an insertion rod (47), which is inserted into the retainer (46).

2. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 1, characterized in that: The take-up roller (2) is fixedly connected to a cylinder (43) at one end near the push rod (41), and the push rod (41) and the cylinder (43) are slidably connected.

3. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 2, characterized in that: The inner wall of the push rod (41) has a groove, and a spring (44) is fixedly connected to the inner wall of the push rod (41). The end of the spring (44) away from the push rod (41) is fixedly connected to the take-up roller (2).

4. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 3, characterized in that: A pull rod (42) is fixedly connected to the upper surface of the push rod (41). There are two push rods (41), and the two push rods (41) are arranged symmetrically.

5. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 1, characterized in that: A traction assembly (45) is provided on one side of the base (1). The traction assembly (45) includes a DC motor (453). The DC motor (453) is fixedly connected to the base (1). A threaded rod (452) is fixedly connected to the drive end of the DC motor (453). The end of the threaded rod (452) away from the DC motor (453) is rotatably connected to the base (1). A movable rod (451) is fixedly connected to the surface of the base (1). A sliding plate (454) is slidably connected to the surface of the movable rod (451). A wheel (455) is rotatably connected to the upper surface of the sliding plate (454).

6. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 5, characterized in that: There are two movable rods (451), which are respectively disposed at both ends of the threaded rod (452).

7. The yarn guiding mechanism of a flat knitting machine with a quick yarn changing device according to claim 6, characterized in that: The wheel (455) is located at the front end of the take-up roller (2), and the slide plate (454) is circular.

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