A positioning structure for center roundness of a bottom plate of a circular knitting machine

Abstract

The utility model provides a kind of positioning structure of center roundness of knitted circular knitting machine chassis, it is related to knitting equipment technical field, including chassis, big dish internal gear, transmission shaft and adjustable compression assembly, the big dish internal gear is provided with first inclined matching surface, the second inclined matching surface is correspondingly provided in the chassis, first wear plate is arranged between the first inclined matching surface and the second inclined matching surface;It further includes adjustable compression assembly.The utility model is combined by first inclined matching surface, second inclined matching surface, first wear plate structure, realizes the quick automatic centering and preliminary positioning of big dish internal gear in installation initial stage, improves assembly efficiency, and the initial stability of system in axial and radial is strengthened again;Then adjustable compression assembly is realized to the adjustment of big dish internal gear radial compression force by the lever action of swing piece, adjusting screw and second wear plate, effectively suppresses the radial runout in high-speed operation, improves rotation precision and stability.

Description

Technical Field

[0001] This utility model relates to the field of knitting equipment technology, and in particular to a positioning structure for the center roundness of the base plate of a circular knitting machine. Background Technology

[0002] Currently, circular knitting machines are widely used in the textile industry, and the positioning accuracy of the center circle of the chassis directly affects the stability of machine operation and knitting quality.

[0003] In existing technologies, the positioning of the chassis center roundness generally employs a combination of a flat-running wear-resistant pad and a steel wire running ring, with the inner circle of the large disc's internal gear serving as an auxiliary reference. The flat-running wear-resistant pad refers to a component that bears vertical pressure and rubs on a horizontal surface. That is, using... Figure 1 For example, by setting horizontal wear-resistant plates on the chassis and using a machine tool to machine the inner circle of the gear inside the chassis and the large disc into a mating surface for positioning.

[0004] While this traditional structure achieves basic positioning functions to a certain extent, it still has several significant drawbacks: First, the flat-running wear-resistant pads lack adjustment capabilities, and cannot compensate for gaps after wear during use, leading to radial runout and noise in the transmission, and a gradual deterioration in positioning accuracy over time. Second, the structure relies on a steel wire running ring for radial positioning, and the steel wire itself is prone to wear, deformation, and even breakage, resulting in insufficient stability and time-consuming and labor-intensive replacement and maintenance, affecting production continuity. Third, traditional flat friction is prone to local overheating under high-speed operation due to insufficient lubrication or poor contact, which not only accelerates the wear of the wear-resistant pads and mating surfaces but may also cause thermal deformation, further reducing transmission accuracy. In addition, the overall structure has extremely high requirements for the machining accuracy of parts and assembly processes; if the flatness of the chassis base surface or the runout of the large gear end face exceeds the tolerance, it is easy to cause uneven wear and abnormal vibration.

[0005] Therefore, existing technologies still need improvement to enhance the stability of high-speed circular knitting machines. Utility Model Content

[0006] This invention overcomes the shortcomings of the prior art and provides a positioning structure for the center roundness of the base of a circular knitting machine, which helps to improve assembly accuracy and effectively suppress radial runout during high-speed operation, thereby improving rotational accuracy and stability.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] A positioning structure for the center roundness of the base of a circular knitting machine includes a base, a large inner gear and a transmission shaft. The large inner gear is provided with a first inclined mating surface, and the base is provided with a corresponding second inclined mating surface. A first wear-resistant plate is provided between the first inclined mating surface and the second inclined mating surface. The large inner gear and the base are initially positioned by the engagement of the first inclined mating surface and the second inclined mating surface.

[0009] It also includes an adjustable clamping assembly, which includes a swing member rotatably connected to the chassis. The swing member has a second wear-resistant plate on the side facing the inner gear of the large disc, and an adjusting member movably disposed on the chassis and abutting against the swing member. By adjusting the adjusting member, the swing member can be driven to rotate so that the second wear-resistant plate abuts against the inner gear of the large disc to achieve radial limiting.

[0010] Furthermore, the inclination angle between the first inclined mating surface and the second inclined mating surface is 45° to provide axial and radial pre-positioning function.

[0011] Furthermore, it also includes a positioning screw that passes through the ornament and is fixed to the chassis, and the ornament swings with the positioning screw as a fulcrum.

[0012] Furthermore, the adjusting component is an adjusting screw, which is threadedly connected to the chassis; by rotating the adjusting screw, its axial movement is controlled, thereby pushing the swing element to rotate around the fulcrum, so as to adjust the clamping force between the second wear-resistant plate and the side of the inner gear of the large disc.

[0013] Furthermore, the large disc internal gear has a vertical mating surface, the adjusting member moves horizontally and pushes the swing member to swing in the horizontal plane, the second wear-resistant plate is vertically arranged and contacts the vertical mating surface, so that the second wear-resistant plate forms a radial clamping force on the vertical mating surface, suppressing the radial runout of the large disc internal gear during rotation.

[0014] Furthermore, the ornament has a recess, and the second wear-resistant sheet is bonded and fixed in the recess.

[0015] Furthermore, the adjustable clamping assembly is provided in multiple sets, evenly distributed along the circumference of the gears inside the large disc.

[0016] Furthermore, the diameter of the positioning screw is smaller than the diameter of the adjusting screw.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, through the combination of a first inclined mating surface, a second inclined mating surface, and a first wear-resistant plate, achieves rapid automatic alignment and initial positioning of the gear inside the large disc during the initial installation stage, improving assembly efficiency and enhancing the initial stability of the system in the axial and radial directions. Then, the adjustable clamping assembly, through the lever action of the swing element, adjusting screw, and second wear-resistant plate, realizes the adjustment of the radial clamping force of the gear inside the large disc, effectively suppressing radial runout during high-speed operation and improving rotational accuracy and stability. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram showing the positioning of the traditional chassis and the gears inside the main body;

[0021] Figure 2 This is a schematic diagram of the positioning structure of this utility model;

[0022] Figure 3 It is an enlarged view of the gears inside the main body;

[0023] Figure 4 This is a top-down view showing the ornament, the second wear-resistant plate, and the positioning screws installed on the chassis.

[0024] Figure 5 This is an enlarged image of the ornament.

[0025] In the picture:

[0026] 1. Chassis; 101. Second inclined mating surface; 2. Large disc internal gear; 201. First inclined mating surface; 202. Vertical mating surface; 3. Drive shaft; 4. First wear-resistant plate; 5. Ornament; 501. Recess; 6. Second wear-resistant plate; 7. Adjusting component; 8. Positioning screw. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] like Figures 2 to 5 As shown, this utility model discloses a positioning structure for the center roundness of the base 1 of a circular knitting machine, including a base 1, a large disc internal gear 2, a transmission shaft 3, and an adjustable clamping assembly. The base 1 serves as the basic support component of the entire machine, used to support and install the large disc internal gear 2 and other related components. The large disc internal gear 2, as the core driven component of the transmission system, meshes with the drive gear on the transmission shaft 3 on its inner side, receiving power input and driving the upper table to rotate as a whole.

[0029] In this embodiment, to achieve the positioning and installation of the large disc internal gear 2, a first inclined mating surface 201 is machined on the lower end face of the large disc internal gear 2, and correspondingly, a second inclined mating surface 101 is machined on the upper surface of the chassis 1. The inclined angle between the first inclined mating surface 201 and the second inclined mating surface 101 is preferably 45°. This design allows the two inclined surfaces to simultaneously generate axial and radial constraints when mating, thereby achieving initial positioning of the large disc internal gear 2 and the chassis 1 in the initial stage of installation. A first wear-resistant plate 4 is embedded between the first inclined mating surface 201 and the second inclined mating surface 101. The first wear-resistant plate 4 directly bears the friction and wear generated by relative rotation, protecting the main structure of the chassis 1 and the large disc internal gear 2, thereby improving the service life of the main structure and reducing maintenance costs.

[0030] To further limit the radial runout that may occur in the large disc internal gear 2 during high-speed operation and improve its rotational roundness and running stability, this embodiment also includes an adjustable clamping assembly. This adjustable clamping assembly includes a rocker arm 5, a second wear-resistant plate 6, and an adjusting component 7; the rocker arm 5 is rotatably connected to the chassis 1 via a positioning screw 8, which acts as a fulcrum for the rotation of the rocker arm 5. Figure 5 As shown, a recess 501 is provided on the side of the ornament 5 facing the gear 2 inside the large disc. The second wear-resistant piece 6 is firmly fixed in the recess 501 by an adhesive. The recess 501 plays a certain limiting role for the second wear-resistant piece 6, preventing it from loosening or shifting during operation.

[0031] In this embodiment, the adjusting component 7 is preferably an adjusting screw, which forms a threaded connection with the threaded hole on the chassis 1. By turning the adjusting screw, its axial movement can be precisely controlled. The top of the adjusting screw contacts one end of the swing component 5. When it moves forward, it pushes the swing component 5 to rotate around the fulcrum of the positioning screw 8, thereby pressing the second wear-resistant plate 6 at the other end of the swing component 5 against the vertical mating surface 202 of the large disc internal gear 2. The vertical mating surface 202 of the large disc internal gear 2 is a reference surface specifically used for radial limiting. Through the lever principle described above, rotating the adjusting screw can convert the axial movement of the adjusting component 7 into the radial pressing action of the second wear-resistant plate 6, thereby applying an adjustable and stable radial pressing force to the large disc internal gear 2, effectively eliminating radial clearance and suppressing its radial runout. To ensure that the pressing assembly has sufficient structural strength and adjustment rigidity, preferably, the diameter of the positioning screw 8 is smaller than the diameter of the adjusting screw. This allows the adjusting screw to withstand greater adjustment force without easily bending or deforming, thus ensuring long-term reliability.

[0032] To achieve uniform and stable circumferential constraint on the inner gear 2 of the large disc, multiple sets of adjustable clamping components are provided and evenly distributed along the circumferential direction of the inner gear 2. The multiple sets of components work together to form a uniform radial constraint system, thereby significantly improving the rotational accuracy and dynamic stability of the inner gear 2 under high-speed and heavy-load conditions.

[0033] In this utility model's positioning structure, the first inclined mating surface 201 of the large disc internal gear 2 engages with the second inclined mating surface 101 of the chassis 1, with a first wear-resistant plate 4 placed between them, achieving initial positioning of the large disc internal gear 2 and the chassis 1. Then, the adjusting member 7 in the adjustable clamping assembly is adjusted to move it axially forward and backward. The adjusting screw pushes the swing member 5 to rotate around the fulcrum of the positioning screw 8. Since the second wear-resistant plate 6 on the swing member 5 is bonded and fixed within the recess 501 and is vertically positioned, when the swing member 5 rotates, the second wear-resistant plate 6 presses against the vertical mating surface 202 of the large disc internal gear 2, forming a radial clamping force. Multiple sets of adjustable clamping assemblies are evenly distributed circumferentially, working together to suppress the radial runout of the large disc internal gear 2 during rotation, thereby ensuring the center roundness of the large disc internal gear 2 and the entire circular knitting machine chassis 1, ensuring the stable operation and precise work of the circular knitting machine.

[0034] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning structure for the center roundness of the base of a circular knitting machine, characterized in that, The device includes a chassis, a large internal gear, and a drive shaft. The large internal gear is provided with a first inclined mating surface, and the chassis is provided with a corresponding second inclined mating surface. A first wear-resistant plate is provided between the first inclined mating surface and the second inclined mating surface. The large internal gear and the chassis are initially positioned by the engagement of the first inclined mating surface and the second inclined mating surface. It also includes an adjustable clamping assembly, which includes a swing member rotatably connected to the chassis. The swing member has a second wear-resistant plate on the side facing the inner gear of the large disc, and an adjusting member movably disposed on the chassis and abutting against the swing member. By adjusting the adjusting member, the swing member can be driven to rotate so that the second wear-resistant plate abuts against the inner gear of the large disc to achieve radial limiting.

2. The positioning structure for the center roundness of the knitting circular machine base as described in claim 1, characterized in that, The first inclined mating surface and the second inclined mating surface are inclined at an angle of 45° to provide axial and radial pre-positioning.

3. The positioning structure for the center roundness of the knitting circular machine base as described in claim 1, characterized in that, It also includes a positioning screw that passes through the ornament and is fixed on the chassis, and the ornament swings with the positioning screw as a fulcrum.

4. The positioning structure for the center roundness of the knitting circular machine base as described in claim 3, characterized in that, The adjusting component is an adjusting screw, which is threadedly connected to the chassis. By rotating the adjusting screw, its axial movement is controlled, thereby pushing the swing element to rotate around the fulcrum, so as to adjust the clamping force between the second wear-resistant plate and the side of the inner gear of the large disc.

5. The positioning structure for the center roundness of the knitting circular machine base as described in claim 1, characterized in that, The large disc internal gear has a vertical mating surface. The adjusting member moves horizontally and pushes the swing member to swing in the horizontal plane. The second wear-resistant plate is vertically arranged and contacts the vertical mating surface so that the second wear-resistant plate forms a radial clamping force on the vertical mating surface, thereby suppressing the radial runout of the large disc internal gear during rotation.

6. The positioning structure for the center roundness of the knitting circular machine base as described in claim 1, characterized in that, The ornament has a recess, and the second wear-resistant sheet is bonded and fixed in the recess.

7. The positioning structure for the center roundness of the knitting circular machine base as described in claim 1, characterized in that, The adjustable clamping assembly is provided in multiple sets, which are evenly distributed along the circumference of the gears inside the large disc.

8. The positioning structure for the center roundness of the knitting circular machine chassis according to claim 4, characterized in that, The diameter of the positioning screw is smaller than the diameter of the adjusting screw.

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