Circular knitting machine capable of eliminating flying deposition and used for preparing knitted fabric

Abstract

The utility model relates to the technical field of circular knitting machines, and discloses a circular knitting machine for knitted fabric preparation capable of eliminating flying deposition, which comprises a circular knitting machine main body, a working table is arranged in the circular knitting machine main body, at least three mounting frames are movably arranged at the top end of the working table, and a fan blade is arranged in each mounting frame. The installation frames are circumferentially distributed at the top end of the workbench with the center of the workbench as the axis. Through the design of fan blade angle adjustment and mounting frame position reconstruction, 'space-angle 'two-dimensional airflow control is formed. The angle of the fan blades is adjusted, so that airflow forms directional shearing force along the curved surface of a needle groove of the knitting needle assembly, flyings attached to precise parts are stripped, the yarn breaking risk caused by fiber winding is avoided, and after the mounting frame moves, the flyings retention amount of key parts can be flexibly reduced. When yarn varieties are switched, the position of the mounting frame can be locked, the angles of the fan blades can be finely adjusted, the stability of an airflow field is maintained, and airflow turbulence caused by parameter switching is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knitting machines, in particular to a circular knitting machine for preparing knitted fabrics and capable of eliminating flying waste deposition. Background Art

[0002] During the knitted fabric production process, large circular knitting machines will generate a large amount of flying fibers when they run at high speed, which can easily clog the yarn path, affect the fabric quality and pollute the workshop environment. To solve such problems, large circular knitting machines that can eliminate flying fibers have appeared on the market.

[0003] For example, the circular knitting machine disclosed in Chinese Patent Publication No. CN220224525U utilizes an internal gear ring to drive the synchronous rotation of multiple shafts. A fan assembly is mounted on the upper ends of the shafts. This rotation of the shafts simultaneously drives the fan assembly, thereby blowing airborne cotton fibers toward the exterior of the knitting machine, reducing cotton fiber deposition on the central components and ensuring smooth operation. However, in actual use, this existing device suffers from mechanical limitations in spatial coverage, as the fan assembly's installation position and angle are determined by the rigid structure of the gear train. This airflow field only covers a fixed radius centered on the gear center. This airflow coverage cannot be dynamically adjusted based on weaving process requirements (such as yarn density and stitch length variations). Utility Model Content

[0004] The purpose of the utility model is to provide a large circular knitting machine for knitted fabric preparation that eliminates fly waste deposition. Through the design of fan blade angle adjustment and installation frame position reconstruction, "space-angle" two-dimensional airflow control is formed to improve the efficiency of eliminating fly waste deposition.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a large circular knitting machine for preparing knitted fabrics that eliminates the deposition of flying waste, comprising a large circular knitting machine body, a workbench being provided in the large circular knitting machine body, at least three mounting frames being movably provided at the top of the workbench, and each mounting frame being provided with fan blades.

[0006] At least three installation frames are arranged and distributed on the top of the workbench in a circle with the center of the workbench as an axis.

[0007] The workbench is provided with a position adjustment component for adjusting the radial position of the installation frame and an angle adjustment component for adjusting the deflection angle of the fan blade.

[0008] Preferably, a position adjustment component is provided in the workbench, and the position adjustment component includes at least three connection frames fixed to the top of the workbench, each connection frame is slidably provided with a movable plate, and the installation frame is located at the top of the movable plate.

[0009] Preferably, the position adjustment assembly includes a support plate fixed in each connection frame, and a screw is rotatably provided in each support plate, and the screw is threadedly connected to the movable plate.

[0010] A limiting plate is fixed in each connecting frame, and a sliding hole for the limiting plate to pass through is provided on the movable plate.

[0011] Preferably, a driving assembly for driving multiple screws to rotate synchronously is provided outside the workbench, and the driving assembly includes a connecting rod rotating in the workbench, a bevel gear is provided outside the connecting rod, and a bevel gear meshing with the bevel gear is fixed outside each screw.

[0012] Preferably, a first mounting seat is provided in the workbench, a first motor is provided in the first mounting seat, and an output shaft of the first motor passes through the workbench and is transmission-connected to the connecting rod.

[0013] Preferably, an angle adjustment component for adjusting the angle of the mounting frame is provided at the top of the movable plate, and the angle adjustment component includes a second mounting seat provided outside the movable plate, a second motor is provided at the top of the second mounting seat, and a connecting plate is connected to the output shaft of the second motor for transmission.

[0014] The connecting plate is fixedly connected to the bottom end of the installation frame and is rotatably connected to the movable plate.

[0015] Compared with the prior art, the present invention provides a circular knitting machine for knitted fabric preparation that eliminates fly waste deposition, and has the following beneficial effects:

[0016] 1. This circular knitting machine for knitting fabrics eliminates fly deposits, achieving dual-dimensional airflow control ("space-angle") through blade angle adjustment and mounting frame repositioning. Blade angle adjustment creates a directional shear force along the curved surface of the needle grooves in the knitting needle assembly, removing fly from delicate components and avoiding the risk of yarn breakage caused by fiber entanglement. Moving the mounting frame flexibly reduces fly retention on key components. When switching yarn types, the mounting frame position can be locked and the blade angle fine-tuned to maintain airflow stability and avoid airflow turbulence caused by parameter switching.

[0017] 2. The circular knitting machine for knitted fabric preparation that eliminates fly fiber deposition has a synchronous transmission structure of a bevel gear disk and three sets of bevel gears, and cooperates with the axial constraint of the movable plate by the limit plate. This reduces the risk of fly fiber intrusion while ensuring the position adjustment accuracy, avoiding equipment shutdown due to mechanical jamming. The unplanned shutdown rate of the main equipment of the circular knitting machine due to fly fiber deposition can be reduced by regularly cleaning the fly fiber at the hinge points and calibrating the screw matching accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of a circular knitting machine for preparing knitted fabrics that eliminates fly waste deposition according to the present invention;

[0019] Figure 2 This is a schematic diagram of the partial three-dimensional structure of a circular knitting machine for preparing knitted fabrics to eliminate flying waste deposition. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the partial three-dimensional structure of a circular knitting machine for preparing knitted fabrics to eliminate flying waste deposition. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the partially disassembled structure of a circular knitting machine for preparing knitted fabrics that eliminates fly waste deposition according to the present invention;

[0022] Figure 5 This is a schematic diagram of the disassembled structure of a position adjustment component in a circular knitting machine for preparing knitted fabrics that eliminates fly waste deposition according to the present invention;

[0023] Figure 6 The utility model is a schematic diagram of the disassembled structure of an angle adjustment component in a circular knitting machine for preparing knitted fabrics for eliminating flying waste deposition.

[0024] In the figure: 1. Large circular knitting machine body; 11. Workbench; 21. Mounting frame; 22. Fan blade; 23. Position adjustment assembly; 231. Connecting frame; 232. Support plate; 233. Screw; 234. Movable plate; 235. Limiting plate; 24. Driving assembly; 241. Connecting rod; 242. Bevel gear; 243. Bevel gear; 244. First mounting seat; 245. First motor; 25. Angle adjustment assembly; 251. Second mounting seat; 252. Second motor; 253. Connecting plate. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1: Please refer to Figure 1 - Figure 6 The utility model provides a technical solution: a large circular knitting machine for preparing knitted fabrics that eliminates flying waste deposition, comprising a large circular knitting machine body 1, a workbench 11 being provided in the large circular knitting machine body 1, at least three mounting frames 21 being movably provided at the top of the workbench 11, and each mounting frame 21 being provided with a fan blade 22.

[0027] Mounting frames 21 are arranged circumferentially on top of the workbench 11, centered around the workbench 11. These circumferentially distributed mounting frames 21, combined with fan blades 22, form the foundation for dual-dimensional airflow control: spatial and angular. This circular arrangement of mounting frames 21 provides structural redundancy for subsequent spatial position adjustments, ensuring that the airflow field covers key components in the weaving area and reduces fly waste retention.

[0028] Furthermore, the workbench 11 is provided with a position adjustment assembly 23, which includes at least three connection frames 231 fixed to the top of the workbench 11. A movable plate 234 is slidably provided in each connection frame 231, and the mounting frame 21 is located on top of the movable plate 234. The movable plate 234 serves as a movable carrier for the mounting frame 21 and, through linkage with the position adjustment assembly 23, enables the spatial repositioning of the mounting frame 21.

[0029] Furthermore, the position adjustment assembly 23 includes a support plate 232 fixed in each connection frame 231 , and a screw 233 is rotatably provided in each support plate 232 , and the screw 233 is threadedly connected to the movable plate 234 .

[0030] A limit plate 235 is fixed in each connection frame 231, and a sliding hole is provided in the movable plate 234 for the limit plate 235 to pass through. The threaded connection between the screw 233 and the movable plate 234 cooperates with the axial constraint of the limit plate 235 to form a high-precision transmission structure.

[0031] Furthermore, a drive assembly 24 is provided outside the workbench 11 to drive the multiple screws 233 to rotate synchronously. The drive assembly 24 includes a connecting rod 241 that rotates within the workbench 11. A bevel gear 242 is provided outside the connecting rod 241. Each screw 233 is secured to the outside of the bevel gear 243 and meshes with the bevel gear 242. The synchronous transmission structure of the bevel gear 242 and the three sets of bevel gears 243 enables the coordinated control of multiple screws 233 through a single motor drive, reducing the complexity of the transmission chain.

[0032] Furthermore, a first mounting base 244 is provided within the workbench 11. A first motor 245 is disposed within the first mounting base 244. The output shaft of the first motor 245 passes through the workbench 11 and is in transmission connection with the connecting rod 241. The first motor 245 is integrated into the workbench 11 via the first mounting base 244, thereby reducing interference with the transmission components caused by external flying waste.

[0033] See Figure 6, it is further obtained that the top of the movable plate 234 is provided with an angle adjustment component 25 for adjusting the angle of the mounting frame 21, and the angle adjustment component 25 includes a second mounting seat 251 arranged outside the movable plate 234, and a second motor 252 is provided at the top of the second mounting seat 251. The output shaft of the second motor 252 is connected to a connecting plate 253 in a transmission manner. The connecting plate 253 is fixedly connected to the bottom end of the mounting frame 21. The connecting plate 253 is driven to rotate by the second motor 252 to achieve articulated angle adjustment of the mounting frame 21. This design enables the fan blades 22 to form a dynamic airflow field along the curved trajectory of the knitting needle assembly, accurately peeling off the flying waste in the needle groove and the gap between the sinker, and at the same time cooperates with the position adjustment component 23 to form a "space-angle" two-dimensional airflow control system to optimize the flying waste deposition control effect.

[0034] Furthermore, the connecting plate 253 is rotatably connected to the movable plate 234 .

[0035] During actual operation, as the knitting machine body 1 continues to operate, the flying fibers generated by the high-speed friction between the yarn, the needles, and the sinkers tend to accumulate inside the equipment, leading to an increased risk of yarn breakage and fabric defects. In order to systematically eliminate the deposition of flying fibers, it is necessary to achieve dynamic optimization of the airflow through angle adjustment and position reconstruction. The specific operation process is as follows: Start the second motor 252 to drive the connecting plate 253 to rotate, drive the mounting frame 21 to swing around the hinge axis, and synchronously adjust the angle between the fan blades 22 and the airflow direction. When the fan blades 22 are tilted to the desired angle, the effect of the airflow can reduce the adhesion of flying fibers in the knitting machine body 1 to the gap between the needle groove and the sinker.

[0036] To eliminate the eddy current dead zone at the bottom of the device, first motor 245 is activated to rotate connecting rod 241. Through the meshing transmission of bevel gear plate 242 and three sets of bevel gears 243, torque is synchronously distributed to three screws 233. Driven by the threads of screws 233, movable plate 234 translates along the guide groove of support plate 232, constrained axially by limit plate 235, to achieve movement of mounting frame 21.

[0037] When the equipment switches yarn types or process parameters, the system pauses the first motor 245 to maintain the current position of the mounting frame 21; it activates the second motor 252 to fine-tune the angle of the fan blades 22, and simultaneously increases the speed of the fan blades 22 to maintain a stable wind speed in the work area. The hinge point between the connecting plate 253 and the mounting frame 21 is regularly inspected to remove fly lint and re-lubricate it. The thread fit accuracy of the three sets of screws 233 is tested, and the synchronous displacement error of the movable plate 234 is calibrated. The tooth surfaces of the bevel gear 242 and bevel gear 243 are regularly cleaned to prevent fly lint from becoming embedded and causing transmission jams.

[0038] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A circular knitting machine for preparing knitted fabrics to eliminate fly waste deposition, comprising a circular knitting machine body (1), characterized in that: A workbench (11) is provided in the large circular knitting machine body (1), and at least three mounting frames (21) are movably provided on the top of the workbench (11), and each mounting frame (21) is provided with a fan blade (22); the at least three mounting frames (21) are distributed on the top of the workbench (11) with the center of the workbench (11) as the axis; and a position adjustment component (23) for adjusting the radial position of the mounting frame (21) and an angle adjustment component (25) for adjusting the deflection angle of the fan blade (22) are provided on the workbench (11).

2. The circular knitting machine for knitted fabric production with elimination of fly waste deposition according to claim 1, characterized in that: The position adjustment assembly (23) comprises at least three connection frames (231) fixed on the top of the workbench (11), a movable plate (234) is slidably provided in each connection frame (231), and the installation frame (21) is located on the top of the movable plate (234).

3. The circular knitting machine for knitted fabric production with elimination of fly waste deposition according to claim 2, characterized in that: The position adjustment assembly (23) includes a support plate (232) fixed in each connection frame (231), a screw (233) is rotatably provided in each support plate (232), and the screw (233) is threadedly connected to the movable plate (234); a limiting plate (235) is fixed in each connection frame (231), and the movable plate (234) is provided with a sliding hole for the limiting plate (235) to pass through.

4. The circular knitting machine for knitted fabric production with elimination of fly waste deposition according to claim 3, characterized in that: A driving assembly (24) for driving a plurality of screw rods (233) to rotate synchronously is provided outside the workbench (11), the driving assembly (24) comprising a connecting rod (241) rotating in the workbench (11), a bevel gear (242) being provided outside the connecting rod (241), and a bevel gear (243) meshing with the bevel gear (242) being fixed outside each screw rod (233).

5. The circular knitting machine for knitted fabric production with elimination of fly waste deposition according to claim 4, characterized in that: A first mounting seat (244) is provided in the workbench (11), a first motor (245) is provided in the first mounting seat (244), and an output shaft of the first motor (245) passes through the workbench (11) and is transmission-connected to the connecting rod (241).

6. The circular knitting machine for knitted fabric production with elimination of fly waste deposition according to claim 3, characterized in that: An angle adjustment assembly (25) for adjusting the angle of the mounting frame (21) is provided at the top end of the movable plate (234), the angle adjustment assembly (25) comprising a second mounting seat (251) provided outside the movable plate (234), a second motor (252) provided at the top end of the second mounting seat (251), and a connecting plate (253) being transmission-connected to the output shaft of the second motor (252); the connecting plate (253) is fixedly connected to the bottom end of the mounting frame (21) and is rotationally connected to the movable plate (234).

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