Anti-sway straight twisting machine inner can column

Abstract

This invention provides an anti-sway inner can column for a straight twisting machine, comprising an inner can column with multiple sets of elastic compensation components on its outer wall. These elastic compensation components are configured to elastically deform in the radial direction and conform to the inner wall of the bobbin according to its inner diameter, ensuring a stable connection between the inner can column and the bobbin. By setting multiple sets of outwardly protruding arc-shaped spring pieces on the outer wall of the inner can column, the long-standing problem of unstable bobbin fixation caused by rigid clearance fit is solved. The continuous elastic pressure generated by the arc-shaped spring pieces adaptively tightens the bobbin, completely eliminating swaying, jumping, and displacement during high-speed operation, greatly improving the stability and reliability of the equipment. This structure possesses excellent adaptive compensation capabilities, automatically adjusting to compensate for the dimensional tolerances and wear of the bobbin itself, not only reducing the stringent requirements for bobbin manufacturing precision but also significantly extending the service life of components.

Description

Technical Field

[0001] This utility model relates to the field of straight twisting machine technology, and more specifically to an anti-sway inner column for a straight twisting machine. Background Technology

[0002] In a straight twisting machine, the inner spindle column (or spindle column, central shaft) is the core component that supports the bobbin and enables stable rotation. Its design directly affects the twisting efficiency, bobbin stability, and yarn quality. As the rotation axis of the bobbin, it bears the weight of the bobbin and the yarn tension, and transmits the torque of the motor.

[0003] Currently, most straight twisting machines use cylindrical plastic components for their inner canisters. These components have significant structural defects at their contact points with the bobbin. Due to the insufficient rigidity and limited dimensional accuracy of the plastic material, long-term use can lead to increased clearance due to wear or thermal expansion and contraction. This causes axial movement or radial wobble in the bobbin during high-speed rotation. This clearance results in unstable bobbin positioning, leading to yarn tension fluctuations, uncontrolled air pockets, and other problems, severely impacting twisting uniformity and production efficiency. Utility Model Content

[0004] This utility model proposes an anti-sway inner column for a straight twisting machine, comprising:

[0005] The inner tank column is fixed to the base and rotates under drive.

[0006] The tubing is fitted onto the outside of the inner tank column;

[0007] Multiple sets of elastic compensation components are provided on the outer wall of the inner tank column. The elastic compensation components are configured to undergo elastic deformation in the radial direction and fit against the inner wall of the wire tube according to the inner diameter of the wire tube, so as to make the connection between the inner tank column and the wire tube stable.

[0008] Preferably, multiple sets of the elastic compensation elements are distributed sequentially in the axial direction of the inner tank column.

[0009] Preferably, each set of elastic compensation elements includes a plurality of arc-shaped spring pieces that are centrally symmetrically distributed around the axis of the inner tank column.

[0010] Preferably, any two adjacent sets of the arc-shaped spring pieces in the axial direction are staggered in the circumferential direction.

[0011] Preferably, each of the arc-shaped spring pieces is provided with a movable window on the outer wall of the inner tank column. The arc-shaped spring piece includes an elastic contact part and a positioning snap-fit ​​part. The elastic contact part is constructed as an arc-shaped plate, and the two ends of the elastic contact part are fixed with positioning snap-fit ​​parts. The positioning snap-fit ​​parts are fixed to the inner wall of the inner tank column, and the elastic contact part can move elastically inside the movable window.

[0012] Preferably, along the axial direction, the inner wall of the inner tank column is provided with limiting strips on both sides corresponding to each of the movable windows, and the positioning snap-fit ​​part is provided with a snap-fit ​​groove that engages with the limiting strips.

[0013] Preferably, the elastic contact portion is provided with a snap-fit ​​seam, and a gasket is provided on the outer side of the elastic contact portion, the gasket being snapped and fixed to the snap-fit ​​seam.

[0014] Preferably, the gasket includes an integrally formed contact surface and a retaining shaft. The area of ​​the contact surface is smaller than the area of ​​the elastic contact portion. The retaining shaft is snapped into the retaining joint and the contact surface is attached to and fixed to the outer wall of the elastic contact portion.

[0015] Preferably, the gasket comprises a rubber, silicone, or silicone rubber gasket.

[0016] Preferably, the snap-fit ​​joint is strip-shaped, and the snap-fit ​​joints are distributed in the axial direction. In the circumferential direction, there are 1 to 3 snap-fit ​​joints, and the number of snap-fit ​​joints corresponds to the number of snap-fit ​​joints.

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

[0018] This invention solves the long-standing problem of unstable cylinder fixing caused by rigid clearance fit by incorporating multiple sets of outwardly protruding arc-shaped spring pieces on the outer wall of the inner cylinder. The continuous elastic pressure generated by the arc-shaped spring pieces adaptively tightens the cylinder, completely eliminating shaking, jumping, and displacement during high-speed operation, greatly improving the stability and reliability of the equipment. This structure has excellent adaptive compensation capabilities, automatically adjusting to compensate for the dimensional tolerances and wear of the cylinder itself, which not only reduces the stringent requirements for cylinder manufacturing precision but also significantly extends the service life of components. Attached Figure Description

[0019] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of the anti-sway straight twisting machine inner column shown in the embodiment of this utility model;

[0021] Figure 2 This is a partial cross-sectional view of the anti-sway straight twisting machine inner column shown in an embodiment of the present invention;

[0022] Figure 3 yes Figure 2A schematic diagram of the structure in which the inner tank column is fitted with a cylindrical tube.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the arc-shaped spring sheet shown in an embodiment of this utility model;

[0024] 10. Inner tank column; 100. Movable window; 11. Limiting strip; 20. Elastic compensation component; 21. Arc-shaped spring; 211. Elastic contact part; 2110. Snap joint; 212. Positioning snap joint; 2120. Snap joint groove; 22. Gasket; 221. Contact surface; 222. Snap shaft. Detailed Implementation

[0025] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0026] like Figures 1-4 As shown, this utility model provides an anti-sway inner can column for a straight twisting machine, which aims to solve the problem of gaps between the inner can column and the bobbin body after assembly. It mainly includes an inner can column 10 and multiple sets of elastic compensation components 20.

[0027] The inner cylinder 10 is fixed on the base and serves as the rotation axis of the bobbin. It bears the weight of the bobbin and the tension of the yarn, transmits the torque of the motor, and can be driven to rotate by the motor. The bobbin tube is fitted on the outside of the inner cylinder 10 so that the bobbin tube can rotate with the inner cylinder 10.

[0028] Furthermore, to prevent the spool tube and the inner tank column 10 from not rotating synchronously due to the assembly gap between them, multiple sets of elastic compensation components 20 are provided on the outer wall of the inner tank column 10. The elastic compensation components 20 are configured to undergo elastic deformation in the radial direction and fit against the inner wall of the spool tube according to its inner diameter, so as to stabilize the connection between the inner tank column 10 and the spool tube and ensure that the spool tube and the inner tank column 10 can rotate synchronously.

[0029] like Figure 1 As shown, multiple sets of elastic compensating members 20 are sequentially distributed along the axial direction of the inner tank column 10. Each set of elastic compensating members 20 includes multiple arc-shaped spring pieces 21 that are centrally symmetrically distributed around the axis of the inner tank column 10. Furthermore, any two adjacent sets of arc-shaped spring pieces 21 in the axial direction are staggered in the circumferential direction.

[0030] In some embodiments, each group of arc-shaped spring pieces 21 is provided with six in the circumferential direction and at least two in the axial direction. Three to four groups can be provided depending on the height of the inner tank column 10. In this way, by providing multiple elastically protruding arc-shaped spring pieces 21 on the surface of the inner tank column 10, when the spool body is assembled to the outside of the inner tank column 10, the multiple arc-shaped spring pieces 21 elastically contact the inner wall of the spool body, forming a stable multi-point support on the inner side of the spool body, ensuring the stability of the spool body after it is assembled to the outside of the inner tank column 10.

[0031] like Figure 2 and Figure 3 As shown, in a specific embodiment, an movable window 100 is provided on the outer wall of the inner tank column 10 corresponding to each arc-shaped spring piece 21.

[0032] The arc-shaped spring piece 21 includes an elastic contact part 211 and a positioning latching part 212. The elastic contact part 211 is constructed as an arc-shaped plate, and the two ends of the elastic contact part 211 are fixed with the positioning latching part 212. The positioning latching part 212 is fixed to the inner wall of the inner tank column 10, and the elastic contact part 211 can move elastically inside the movable window 100.

[0033] In this way, the positioning latches 212 located at both ends are fixed to the inner wall of the inner tank column 10, so that the elastic contact part 211 can have sufficient elasticity to contact the inner wall of the spool, and the support of the spool body will not be reduced during elastic deformation, and the support effect is more stable.

[0034] Furthermore, along the axial direction, the inner wall of the inner tank column 10 is provided with limiting strips 11 on both sides corresponding to each movable window 100. The positioning snap-fit ​​part 212 is provided with snap-fit ​​grooves 2120 that engage with the limiting strips 11. Thus, when installing the arc-shaped spring piece 21, the snap-fit ​​grooves 2120 on the positioning snap-fit ​​part 212 are snapped onto the limiting strips 11, so that the upper and lower ends of the arc-shaped spring piece 21 are fixed, and the elastic contact part 211 in the middle part provides elastic support to the spool body, which can provide elastic compensation according to the size of the inner wall of the spool body.

[0035] like Figure 1 and Figure 4 As shown, the elastic contact portion 211 is further provided with a snap-fit ​​joint 2110, and a gasket 22 is provided on the outer side of the elastic contact portion 211. The gasket 22 is snapped and fixed to the snap-fit ​​joint 2110.

[0036] In some embodiments, the gasket 22 may be made of rubber, silicone or silicone rubber. By installing the gasket 22 on the outside of the elastic contact portion 211, the friction between the elastic contact portion 211 and the inner wall of the spool can be increased to improve stability.

[0037] Furthermore, the gasket 22 includes an integrally formed contact surface 221 and a retaining shaft 222. The area of ​​the contact surface 221 is smaller than the area of ​​the elastic contact portion 211. The retaining shaft 222 is snapped and fixed in the retaining joint 2110, and the contact surface 221 is attached and fixed to the outer wall of the elastic contact portion 211.

[0038] The snap joint 2110 is strip-shaped and distributed in the axial direction. In the circumferential direction, there are 1 to 3 snap joints 2110. The number of snap shafts 222 corresponds to the number of snap joints 2110. Specifically, the snap shaft 222 is mushroom-shaped. During installation, part of the snap shaft 222 is inserted into the snap joint 2110 to fix the gasket 22 and the arc-shaped spring piece 21 to each other.

[0039] In conjunction with the above embodiments, by setting multiple sets of outwardly protruding arc-shaped spring pieces 21 on the outer wall of the inner tank column 10, the long-standing problem of unstable cylinder fixation caused by rigid clearance fit is solved. The continuous elastic pressure generated by the arc-shaped spring pieces 21 can adaptively tighten the cylinder, completely eliminating shaking, jumping, and displacement during high-speed operation, greatly improving the stability and reliability of equipment operation. This structure has excellent adaptive compensation capability, and can automatically adjust to compensate for the dimensional tolerances and wear of the cylinder itself, which not only reduces the stringent requirements for the manufacturing precision of the cylinder, but also significantly extends the service life of components.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A cage post for a straight twister that is resistant to yawing, characterized in that, include: The inner tank column (10) is fixed on the base and rotated by a drive; The tubing is fitted onto the outside of the inner tank column (10); Multiple sets of elastic compensation members (20) are provided on the outer wall of the inner tank column (10). The elastic compensation members (20) are configured to undergo elastic deformation in the radial direction and fit against the inner wall of the wire tube according to the inner diameter of the wire tube, so that the connection between the inner tank column (10) and the wire tube is stable.

2. The anti-walk straight-doffer inner can post according to claim 1, characterized in that, Multiple sets of the elastic compensation components (20) are sequentially distributed in the axial direction of the inner tank column (10).

3. The anti-walk straight-doffer inner bowl post according to claim 1, wherein, Each set of elastic compensation elements (20) includes a plurality of arc-shaped spring pieces (21) that are centrally symmetrically distributed around the axis of the inner tank column (10).

4. The anti-walk straight-doffer inner bowl post according to claim 3, characterized in that, Two sets of the arc-shaped spring pieces (21) that are arbitrarily adjacent in the axial direction are staggered in the circumferential direction.

5. The anti-walk straight-doffer inner bowl post according to claim 3, wherein, The outer wall of the inner tank column (10) is provided with a movable window (100) corresponding to each of the arc-shaped spring pieces (21). The arc-shaped spring piece (21) includes an elastic contact part (211) and a positioning snap-fit ​​part (212). The elastic contact part (211) is constructed as an arc-shaped plate, and the two ends of the elastic contact part (211) are fixed with positioning snap-fit ​​parts (212). The positioning snap-fit ​​parts (212) are fixed to the inner wall of the inner tank column (10), and the elastic contact part (211) can move elastically inside the movable window (100).

6. The anti-walk straight-doffer inner bowl post according to claim 5, wherein, Along the axial direction, the inner wall of the inner tank column (10) is provided with a limiting strip (11) on both sides corresponding to each of the movable windows (100), and the positioning snap-fit ​​part (212) is provided with a snap-fit ​​groove (2120) that engages with the limiting strip (11).

7. The anti-walk straight-doffer inner bowl post according to claim 5, wherein, The elastic contact part (211) is provided with a snap-fit ​​joint (2110), and a gasket (22) is provided on the outer side of the elastic contact part (211). The gasket (22) is snap-fitted and fixed to the snap-fit ​​joint (2110).

8. The anti-walk straight-doffer inner bowl post according to claim 7, characterized in that, The gasket (22) includes an integrally formed contact surface (221) and a retaining pin (222). The area of ​​the contact surface (221) is smaller than the area of ​​the elastic contact portion (211). The retaining pin (222) is snapped and fixed in the retaining joint (2110) and the contact surface (221) is attached and fixed to the outer wall of the elastic contact portion (211).

9. The anti-walk straight-doffer inner bowl post according to claim 8, characterized in that, The gasket (22) includes a rubber, silicone, or silicone rubber gasket.

10. The anti-walk straight-doffer inner bowl post according to claim 8, wherein, The snap joint (2110) is constructed in a strip shape, and the snap joints (2110) are distributed in the axial direction and in the circumferential direction. There are 1 to 3 snap joints (2110), and the number of snap shafts (222) corresponds to the number of snap joints (2110).

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