Inner tank column structure for direct twisting machine

Abstract

The invention provides an inner tank column structure for a straight twisting machine, which comprises an inner tank column, a plurality of groups of elastic compensation pieces are arranged on the outer surface wall of the inner tank column, and the elastic compensation pieces are configured to be capable of generating elastic deformation along the radial direction and be attached to the inner wall of a bobbin tube according to the inner diameter of the bobbin tube, so that the inner tank column and the bobbin tube are stably connected. A plurality of groups of arc-shaped elastic sheets protruding outwards are arranged on the surface wall of the inner tank column, so that the problem that the bobbin is not firmly fixed due to rigid clearance fit for a long time is solved. The continuous elastic pressure generated by the arc-shaped elastic piece can tightly hold the bobbin in a self-adaptive mode, shaking, jumping and displacement in the high-speed operation process are thoroughly eliminated, and the stability and reliability of equipment operation are greatly improved. The structure has excellent self-adaptive compensation capability, and can be automatically adjusted to make up the dimensional tolerance and abrasion of the bobbin, so that the harsh requirement on the manufacturing precision of the bobbin is reduced, and the service life of parts is also remarkably prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of straight twister, in particular to an inner pot column structure for straight twister. BACKGROUND

[0002] In the straight twister, the inner pot column (or called spindle pot column, central shaft) is the core component for supporting the bobbin and realizing stable rotation, and its design directly affects the twisting efficiency, bobbin stability and yarn quality. As the rotation axis of the bobbin, the inner pot column bears the weight of the bobbin and the tension of the yarn, and transmits the torque of the motor.

[0003] The current commonly used inner pot column of the straight twister is designed as a columnar plastic part, and there is a obvious structural defect at the contact part between the inner pot column and the tube of the bobbin. Due to the insufficient rigidity of the plastic material and the limited dimensional accuracy, the fitting gap will increase after long-term use due to wear or thermal expansion and cold contraction, so that the tube will produce axial movement or radial deflection when rotating at high speed. Such gap will cause unstable positioning of the tube, and further cause yarn tension fluctuation, coil out of control and other problems, which seriously affect the twisting evenness and production efficiency. SUMMARY

[0004] The present application provides an inner pot column structure for straight twister, comprising:

[0005] The inner pot column is fixed on the base and is driven to rotate;

[0006] The bobbin tube is sleeved on the outer side of the inner pot column;

[0007] Wherein, a plurality of elastic compensation members are arranged on the outer wall of the inner pot column, the elastic compensation members are configured to elastically deform in the radial direction, and are fitted on the inner wall of the bobbin tube according to the inner diameter of the bobbin tube, so that the connection between the inner pot column and the bobbin tube is stable;

[0008] The elastic compensation member comprises a plurality of arc-shaped elastic pieces which are centrally symmetrically distributed around the axis of the inner pot column, and the strength of the arc-shaped elastic piece is gradually increased from the middle to the two ends, so that the middle region of the arc-shaped elastic piece is more easily deformed than the two ends.

[0009] Preferably, a plurality of the elastic compensation members are sequentially distributed in the axial direction of the inner pot column.

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

[0011] Preferably, the outer wall of the inner tank column is provided with a movable window corresponding to each of the arc-shaped elastic pieces, the arc-shaped elastic piece comprises an elastic contact part and a positioning clamping part, the elastic contact part is configured as an arc-shaped plate, and the two ends of the elastic contact part are fixed with the positioning clamping part, the positioning clamping part is fixed to the inner wall of the inner tank column, and the elastic contact part can elastically move in the inner side of the movable window.

[0012] Preferably, the inner wall of the inner tank column is provided with a limiting strip corresponding to the two sides of each of the movable windows in the axial direction, and the positioning clamping part is provided with a clamping groove matched with the limiting strip.

[0013] Preferably, the elastic contact part is provided with a clamping seam, and the outer side of the elastic contact part is provided with a gasket, and the gasket is clamped and fixed with the clamping seam.

[0014] Preferably, the area of the clamping seam in the middle region of the elastic contact part is greater than the area of the two end regions, so that the middle region of the elastic contact part deforms first and is attached to the inner wall of the bobbin tube when the elastic contact part is in contact with the bobbin tube.

[0015] Preferably, the gasket comprises an integrally formed contact surface and a clamping shaft, the area of the contact surface is smaller than the area of the elastic contact part, the clamping shaft is clamped and fixed in the clamping seam, and the contact surface is attached and fixed to the outer wall of the elastic contact part.

[0016] Preferably, the gasket comprises a rubber, silicone or silicone rubber gasket.

[0017] Preferably, the clamping seam is configured as a strip, and the clamping seam is distributed in the axial direction, and in the circumferential direction, the clamping seam is provided as 1-3, and the number of clamping seams corresponds to the number of clamping shafts.

[0018] Compared with the prior art, the advantages of the present application are that:

[0019] The present application solves the problem of unstable fixing of the bobbin tube caused by rigid gap fitting for a long time by providing a plurality of outwardly protruding arc-shaped elastic pieces on the surface wall of the inner tank column. The arc-shaped elastic piece not only can adapt to the change of the inner diameter of the bobbin tube, but also can increase the contact area of the middle region of the arc-shaped elastic piece with the bobbin tube through the easy deformation feature, and the two end regions can play a stable supporting role through elastic support, thereby completely eliminating the shaking, jumping and displacement in high-speed operation, and greatly improving the stability and reliability of the equipment operation. This structure has excellent self-adaptive compensation ability, can automatically adjust to compensate for the size tolerance and wear of the bobbin tube, not only reduces the stringent requirements for the manufacturing precision of the bobbin tube, but also significantly prolongs the service life of the component. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures can be represented by a like numeral. For purposes of clarity, not every component can be called out in every drawing. There is now being described by way of example various embodiments of aspects of the application with reference to the accompanying drawings, in which:

[0021] Figure 1 is a perspective view of the inner pot column structure of a straight twisting machine according to an embodiment of the present application;

[0022] Figure 2 is a partial cross-sectional view of the inner pot column structure of a straight twisting machine according to an embodiment of the present application;

[0023] Figure 3 is a perspective view of the inner pot column structure of a straight twisting machine according to an embodiment of the present application; Figure 2 is a perspective view of the inner pot column structure of a straight twisting machine according to an embodiment of the present application;

[0024] Figure 4 is a cross-sectional view of the arc-shaped elastic piece according to an embodiment of the present application;

[0025] 10, inner pot column; 100, movable window; 11, limiting strip; 20, elastic compensation piece; 21, arc-shaped elastic piece; 211, elastic contact portion; 2110, clamping seam; 212, positioning clamping portion; 2120, clamping groove; 22, gasket; 221, adhering surface; 222, clamping shaft. DETAILED DESCRIPTION

[0026] In order to better understand the technical content of the present application, specific embodiments are described below with reference to the accompanying drawings.

[0027] As shown in Figures 1-4 , the present application provides an inner pot column structure of a straight twisting machine, which aims to solve the problem of the gap between the inner pot column and the bobbin after assembly, and mainly comprises an inner pot column 10 and a plurality of elastic compensation pieces 20.

[0028] The inner pot column 10 is fixed on the base and serves as the rotating axis of the bobbin, 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 sleeved on the outer side of the inner pot column 10, so that the bobbin tube can rotate with the inner pot column 10.

[0029] Further, in order to avoid the gap between the bobbin tube and the inner pot column 10, which causes the bobbin tube and the inner pot column 10 to be unable to rotate synchronously, a plurality of elastic compensation pieces 20 are arranged on the outer wall of the inner pot column 10. The elastic compensation pieces 20 are configured to elastically deform in the radial direction and adhere to the inner wall of the bobbin tube according to the inner diameter of the bobbin tube, so as to stably connect the inner pot column 10 and the bobbin tube and ensure that the bobbin tube and the inner pot column 10 can rotate synchronously.

[0030] AsFigure 1 As shown, multiple sets of elastic compensation members 20 are sequentially distributed in the axial direction of the inner tank column 10. Each set of elastic compensation members 20 includes multiple arc-shaped elastic pieces 21 that are centrally symmetrically distributed around the axis of the inner tank column 10. Any two adjacent sets of arc-shaped elastic pieces 21 in the axial direction are staggered in the circumferential direction.

[0031] Further, the strength of the arc-shaped elastic piece 21 is configured to gradually increase from the middle to the two ends, so that the middle region of the arc-shaped elastic piece 21 is more easily deformed than the two ends. When the arc-shaped elastic piece 21 contacts the inner wall of the wire drum cylinder, the middle region deforms first and adheres to the inner wall of the wire drum cylinder, while the two end regions of the arc-shaped elastic piece 21 are relatively hard and mainly serve as stable support. In this way, the arc-shaped elastic piece 21 can not only adapt to the change in the inner diameter of the wire drum cylinder, but also increase the contact area of the middle region through its easy deformation feature, while the two end regions provide stable support through elastic support.

[0032] In some embodiments, each set of arc-shaped elastic pieces 21 is provided with six in the circumferential direction, and at least two sets in the axial direction, and three to four sets according to the height of the inner tank column 10. In this way, by providing multiple elastically protruding arc-shaped elastic pieces 21 on the surface of the inner tank column 10, when the wire drum cylinder is assembled to the outside of the inner tank column 10, the multiple arc-shaped elastic pieces 21 elastically contact the inner wall of the wire drum cylinder, forming stable multi-point support on the inside of the wire drum cylinder, ensuring the stability of the wire drum cylinder after being assembled to the outside of the inner tank column 10.

[0033] As shown in FIGS. 1 and 2, Figure 2 and Figure 3 In a specific embodiment, the outer wall of the inner tank column 10 is provided with a movable window 100 corresponding to each arc-shaped elastic piece 21.

[0034] The arc-shaped elastic piece 21 includes an elastic contact portion 211 and a positioning clamping portion 212. The elastic contact portion 211 is configured as an arc-shaped plate, and the two ends of the elastic contact portion 211 are fixed with the positioning clamping portion 212. The positioning clamping portion 212 is fixed to the inner wall of the inner tank column 10, and the elastic contact portion 211 can elastically move inside the movable window 100.

[0035] In this way, the positioning clamping portions 212 at the two ends are fixed to the inner wall of the inner tank column 10, so that the elastic contact portion 211 can have sufficient elasticity to contact the inner wall of the wire drum cylinder, and the support of the wire drum cylinder will not be reduced when the elastic contact portion 211 deforms, and the support effect is more stable.

[0036] Further, the inner wall of the inner tank column 10 is provided with a limiting strip 11 corresponding to both sides of each movable window 100 in the axial direction, and the positioning clamping part 212 is provided with a clamping groove 2120 matched with the limiting strip 11, so that when the arc-shaped elastic piece 21 is installed, the clamping groove 2120 on the positioning clamping part 212 is correspondingly clamped on the limiting strip 11, so that the upper and lower ends of the arc-shaped elastic piece 21 are fixed, and the elastic contact part 211 in the middle part is kept in elastic support of the wire drum body, and can be elastically compensated according to the size of the inner wall of the wire drum body.

[0037] As shown in Figure 1 and Figure 4 Further, the elastic contact part 211 is provided with a clamping seam 2110, and the outer side of the elastic contact part 211 is provided with a gasket 22 clamped and fixed with the clamping seam 2110.

[0038] In some embodiments, the gasket 22 can be made of rubber, silicone or silicone rubber, and by installing the gasket 22 on the outer side of the elastic contact part 211, the friction between the elastic contact part 211 and the inner wall of the wire drum body can be increased to improve stability.

[0039] And the clamping seam 2110 is provided in the middle part of the elastic contact part 211, which can reduce the strength of this part, and when the entire elastic contact part 211 deforms, the clamping seam 2110 area with the gasket 22 deforms first, and this part can be attached to the inner wall of the wire drum body to increase the contact area between the wire drum body and the elastic contact part 211 and improve stability.

[0040] Further, the area of the clamping seam 2110 in the middle region of the elastic contact part 211 is greater than that of the two end regions, so that the middle region of the elastic contact part 211 deforms first and is attached to the inner wall of the wire drum body when it is in contact with the wire drum body.

[0041] In some embodiments, the clamping seam 2110 has a thin seam shape, and the density or length of the elastic contact part 211 can be greater, while the density of the two end regions of the elastic contact part 211 is relatively sparse, so that the area of the clamping seam 2110 in the middle region of the elastic contact part 211 is greater than that of the two end regions, and the middle region of the elastic contact part 211 is more easily deformed and attached to the inner wall of the wire drum body.

[0042] Further, the gasket 22 includes an integral touch surface 221 and a clamping shaft 222, the area of the touch surface 221 is smaller than that of the elastic contact part 211, the clamping shaft 222 is clamped and fixed in the clamping seam 2110, and the touch surface 221 is attached and fixed to the outer wall of the elastic contact part 211.

[0043] The clamping joint 2110 is configured in a strip shape, and is distributed in the axial direction. In the circumferential direction, the clamping joint 2110 is provided as 1-3, and the clamping shaft 222 corresponds to the number of the clamping joint 2110. Specifically, the clamping shaft 222 is configured in a mushroom nail shape. When installed, part of the clamping shaft 222 is installed in the clamping joint 2110, and the mutual fixation of the gasket 22 and the arc-shaped elastic sheet 21 is completed.

[0044] In combination with the above embodiments, by setting a plurality of groups of outwardly protruding arc-shaped elastic sheets 21 on the surface wall of the inner tank column 10, the problem of the cylinder pipe not being fixed firmly due to rigid gap fitting for a long time is solved. The continuous elastic pressure generated by the arc-shaped elastic sheet 21 can self-adaptively hold the cylinder pipe, completely eliminating the shaking, jumping and displacement in high-speed operation, greatly improving the stability and reliability of the equipment operation. This structure has excellent self-adaptive compensation ability, can automatically adjust to compensate for the size tolerance and wear of the cylinder pipe itself, not only reduces the harsh requirements on the manufacturing precision of the cylinder pipe, but also significantly prolongs the service life of the component.

[0045] Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Those skilled in the art having ordinary knowledge in the technical field of the present application can make various modifications and decorations without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. An inner column structure for a straight twisting machine, characterized in that, The utility model relates to a kind of inner pot column (10), fixed on base, and is driven to rotate;Wire barrel cylinder is sleeved on the outside of the inner pot column (10); Wherein, multiple sets of elastic compensation parts (20) are equipped on the outer wall of the inner pot column (10), and the elastic compensation parts (20) are configured to be elastically deformed in the radial direction, and are fitted on the inner wall of the wire barrel cylinder according to the inner diameter of the wire barrel cylinder, so that the inner pot column (10) and the wire barrel cylinder are connected stably; The elastic compensation part includes multiple arc spring sheets (21) which are centrally symmetrically distributed around the axis of the inner pot column (10), and the strength of the arc spring sheet (21) is gradually increased from the middle to both ends, so that the middle region of the arc spring sheet (21) is more easily deformed than both ends. Multiple sets of the elastic compensation part (20) are sequentially distributed in the axial direction of the inner pot column (10). Any two adjacent sets of the arc spring sheet (21) in the axial direction are staggered in the circumferential direction.

2. The inner can post structure for a direct winder according to claim 1, wherein The outer wall of the inner pot column (10) is provided with a movable window (100) corresponding to each arc spring sheet (21), and the arc spring sheet (21) includes an elastic contact part (211) and a positioning clamping part (212), the elastic contact part (211) is configured as an arc plate, and both ends of the elastic contact part (211) are fixed with the positioning clamping part (212), the positioning clamping part (212) is fixed to the inner wall of the inner pot column (10), and the elastic contact part (211) can be elastically moved inside the movable window (100).

3. The inner can post structure for a direct winder according to claim 1, wherein In the axial direction, the inner wall of the inner pot column (10) is provided with a limiting strip (11) corresponding to both sides of each movable window (100), and the positioning clamping part (212) is provided with a clamping groove (2120) matched with the limiting strip (11).

4. The inner can post structure for a direct winder according to claim 1, wherein The elastic contact part (211) is provided with a clamping seam (2110), and the outer side of the elastic contact part (211) is provided with a gasket (22), and the gasket (22) is clamped and fixed with the clamping seam (2110).

5. The inner can post structure for a direct winder according to claim 4, wherein The area of the clamping seam (2110) in the middle region of the elastic contact part (211) is greater than that in the two end regions, so that the middle region of the elastic contact part (211) deforms first and is fitted with the inner wall of the wire barrel cylinder when the elastic contact part (211) contacts the wire barrel cylinder.

6. The inner can post structure for a direct winder according to claim 4, wherein The gasket (22) includes an integrally formed contact surface (221) and a clamping shaft (222), the area of the contact surface (221) is smaller than that of the elastic contact part (211), the clamping shaft (222) is clamped and fixed in the clamping seam (2110), and the contact surface (221) is attached and fixed to the outer wall of the elastic contact part (211).

7. The inner can post structure for a direct winder according to claim 6, wherein The gasket (22) includes a rubber, silicone or silicone rubber gasket.

8. The inner can post structure for a direct winder according to claim 6, wherein The clamping seam (2110) is configured as a strip, and the clamping seam (2110) is distributed in the axial direction, and in the circumferential direction, the clamping seam (2110) is provided as 1-3, and the number of the clamping shaft (222) corresponds to that of the clamping seam (2110).

9. The inner can post structure for a direct winder according to claim 8, wherein ​ 10. The inner can post structure for a direct winder according to claim 8, wherein ​

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