Pay-off shaft structure for keeping pay-off stable

Abstract

The utility model relates to the technical field of steel cord production, in particular to a pay-off shaft structure used for keeping pay-off stable, which comprises a pay-off shaft body, the pay-off shaft body comprises a base, a first shaft section, a second shaft section and a third shaft section, the first shaft section is constructed to be of a cylindrical structure, and the second shaft section is constructed to be of a cylindrical structure. The outer diameter of the first shaft section is matched with the diameter of an inner hole of the spool, and the diameter of the second shaft section is gradually reduced. The pay-off shaft comprises the pay-off shaft body and the cap used in cooperation with the pay-off shaft body, the pay-off shaft body supports the bottom of the spool, after the cap is connected to the pay-off shaft body, a shaft hole in the upper portion of the spool can be supported, circumferential fixing of the spool, the cap and the pay-off shaft body is achieved, and during pay-off, the pay-off shaft body is not prone to falling off. No mutual friction exists between the spool and the shaft body, and reliable support can be formed, so that shaking or swinging during pay-off is avoided, and pay-off is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, in particular to a pay-off shaft structure for maintaining stable pay-off. Background Art

[0002] The steel cord pay-off shaft is a structure that provides support and rotation for the steel cord spool during the production or application of the steel cord. In some heavy spool pay-offs, a vertical shaft is usually used. The spool is sleeved on the outside of the shaft and the pay-off is performed by pulling the steel wire.

[0003] When paying out wire with the pay-off shaft, due to the heavy weight of the pay-off I-shaped wheel, long-term use will cause wear of the inner hole. Wear of the pay-off shaft will easily cause unstable pay-off, shaking or eccentric rotation, etc., especially for the heavy mass of the wire pay-off wheel, high pay-off tension and fast running speed. The instability of the pay-off shaft caused by eccentricity or shaking directly leads to large fluctuations in the pay-off tension, and the quality risk of the finished product increases. Utility Model Content

[0004] In view of the technical problems existing in the prior art of steel cord pay-off, the first aspect of the utility model proposes a pay-off shaft structure for maintaining stable pay-off, comprising:

[0005] A pay-off shaft body, the pay-off shaft body comprising a base, a first shaft section, a second shaft section and a third shaft section, the first shaft section being configured as a cylindrical structure, and the outer diameter of the first shaft section matches the inner hole diameter of the I-shaped wheel, the second shaft section being configured as a gradually decreasing diameter, and the third shaft section being configured as a shaft structure including a first cross-sectional shape;

[0006] A cap, the cap comprising a cap body and a connecting shaft section;

[0007] Among them, the connecting shaft segment is constructed with an outer diameter matching the inner hole diameter of the I-shaped wheel, and is provided with a socket that cooperates with the third shaft segment. When the connecting shaft segment is plugged into the third shaft segment, the outer wall of the connecting shaft segment and the outer wall of the first shaft segment jointly construct a supporting shaft surface for the I-shaped wheel.

[0008] Preferably, the outer wall of the connecting shaft section is a cylindrical supporting surface, and when the I-shaped wheel is sleeved outside the shaft body of the pay-off shaft, the cylindrical supporting surface extends downward from the inner hole at the upper end of the I-shaped wheel.

[0009] Preferably, the length of the third shaft segment is defined as A, the length of the second shaft segment is defined as B, the length of the cylindrical supporting surface is defined as C, and A≦C≦A+B.

[0010] Preferably, the first end face of the cover body is provided with two positioning pins, and the positioning pins are matched with the positioning holes on the end face of the I-shaped wheel. When the positioning pins are in the positioning holes, the connecting shaft section is completely extended into the shaft hole of the I-shaped wheel.

[0011] Preferably, a handle is provided on the second end surface of the cover body, the handle is constructed in a T-shape, and the direction of the handle is perpendicular to the direction of the line connecting the two positioning pins.

[0012] Preferably, the first cross-sectional shape is a regular polygon or a kidney shape.

[0013] Preferably, the cover body and the connecting shaft section are an integrally formed structure.

[0014] Preferably, the cover body and the connecting shaft section are made of rubber.

[0015] Preferably, the positioning pin is a bolt, and the bolt passes through the cover body from the second end surface of the cover body and extends downward from the first end surface.

[0016] Preferably, the axis of the connecting shaft segment coincides with the axis of the first shaft segment.

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

[0018] The pay-off shaft designed by the utility model comprises a pay-off shaft body and a cap used in conjunction with the body. The pay-off shaft body supports the bottom of the I-shaped wheel, and after the cap is connected to the pay-off shaft body, it can support the axial hole on the upper part of the I-shaped wheel and realize the circumferential fixation of the I-shaped wheel, the cap and the pay-off shaft body. When paying out the wire, there is no mutual friction between the I-shaped wheel and the shaft body, and reliable support can be formed to avoid shaking or swinging during paying out, thereby making the paying out stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the I-shaped wheel shown in the utility model being sleeved outside the pay-off shaft;

[0021] Figure 2 It is a schematic diagram of a pay-off shaft structure for maintaining stable pay-off shown in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the cap shown in the utility model. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0024] like Figure 1-2 As shown, the first aspect of the utility model proposes a pay-off shaft structure for maintaining stable pay-off, comprising a pay-off shaft body 10 and a cap 20, wherein the pay-off shaft body 10 is intended to provide support for the I-shaped wheel, and the cap 20 is an accessory used in conjunction with the pay-off shaft body 10, the pay-off shaft body 10 is usually installed at a predetermined position through a bearing structure, the I-shaped wheel 30 is sleeved on the outside of the pay-off shaft body 10, and the I-shaped wheel 30 and the pay-off shaft body 10 are rotated synchronously by pulling the steel wire on the surface of the I-shaped wheel 30, and the cap 20 is inserted into the upper part of the I-shaped wheel shaft hole to play a filling role, which can avoid circumferential shaking of the I-shaped wheel 30 and the pay-off shaft body 10, and especially can suppress unstable pay-off caused by eccentricity during rotation.

[0025] like Figure 2 As shown, the pay-off shaft body 10 includes a base 11, a first shaft section 12, a second shaft section 13 and a third shaft section 14. The first shaft section 12 is constructed as a cylindrical structure, and the outer diameter of the first shaft section 12 matches the inner hole diameter of the I-shaped wheel. The second shaft section 13 is constructed with a gradually decreasing diameter, and the third shaft section 14 is constructed as an shaft structure including a first cross-sectional shape.

[0026] The base 11 is connected to the bottom of the first shaft segment 12. When the I-shaped wheel 30 is sleeved outside the first shaft segment 12, its bottom is supported by the base 11, and the bottom of the shaft hole is supported by the first shaft segment 12, but the upper part of the I-shaped wheel shaft hole is not supported. Therefore, by covering the cap 20 on the third shaft segment 14, the support of the upper part of the I-shaped wheel shaft hole can be achieved.

[0027] Preferably, the first cross-sectional shape is a regular polygon or a waist shape. By designing the first cross-sectional shape to be a non-circular shape, the third shaft segment 14 and the cap 20 can be circumferentially fixed.

[0028] Combination Figure 2 As shown, the cap 20 includes a cover body 21 and a connecting shaft section 22; the connecting shaft section 22 is constructed with an outer diameter matching the inner hole diameter of the I-shaped wheel, and is provided with a socket 221 that cooperates with the third shaft section 14. When the connecting shaft section 22 is plugged into the third shaft section 14, the outer wall of the connecting shaft section 22 and the outer wall of the first shaft section 12 jointly construct a supporting shaft surface for the I-shaped wheel.

[0029] In this way, the inner surface of the axial hole of the I-shaped wheel is supported by the connecting shaft section 22 and the first shaft section 12, especially the upper and lower ends of the I-shaped wheel are maintained at the same axis. Therefore, when the I-shaped wheel rotates, it will not shake or swing due to the deviation of the axis at the upper and lower ends, thereby ensuring stable wire pay-off.

[0030] Further, when the pay-off shaft body 10 and the cap 20 are connected to each other, the connecting shaft section 22 coincides with the axis of the first shaft section 12. In this way, it can be ensured that the supporting surfaces of the pay-off shaft body 10 and the cap 20 avoid completely coinciding with the inner hole of the I-shaped wheel, thereby forming effective support.

[0031] Furthermore, the outer wall of the connecting shaft section 22 is a cylindrical supporting surface. When the I-shaped wheel 30 is sleeved outside the pay-off shaft body 10 , the cylindrical supporting surface extends downward from the inner hole at the upper end of the I-shaped wheel 30 .

[0032] The cylindrical support surface supports the shaft hole of the I-shaped wheel, thereby preventing the I-shaped wheel and the cap 20 from shaking relative to each other.

[0033] In an optional embodiment, the length of the third shaft segment 14 is defined as A, the length of the second shaft segment 13 is defined as B, the length of the cylindrical support surface is defined as C, and A≦C≦A+B.

[0034] Optional, such as Figure 2 As shown, the length C of the cylindrical support surface is equal to the length A of the third shaft section 14 .

[0035] In other embodiments, the lower end of the connecting shaft segment 22 can be constructed to fit the outer wall of the second shaft segment 13 to extend the length of the cylindrical support surface to reach the sum of the lengths of the second shaft segment 13 and the third shaft segment 14, thereby achieving better circumferential support capabilities for the I-shaped wheel.

[0036] Furthermore, two positioning pins 24 are provided on the first end face of the cover body 21, and the positioning pins match the positioning holes on the end face of the I-shaped wheel. When the positioning pins are in the positioning holes, the connecting shaft section 22 is completely inserted into the shaft hole of the I-shaped wheel.

[0037] In this way, by setting the positioning holes, the cover body 21 can be circumferentially fixed to the I-shaped wheel, and the cover body 21 can also be circumferentially fixed to the third shaft section 14. Therefore, the cap 20, the I-shaped wheel and the pay-off shaft body 10 can rotate synchronously to avoid relative friction and make the pay-off process more stable.

[0038] Furthermore, in order to facilitate the user to cover the cover body 21 on the position of the shaft hole and align the positioning pin 24 with the positioning hole of the I-shaped wheel, a handle 23 is provided on the second end face of the cover body 21. The handle 23 is constructed in a T shape, and the direction of the handle 23 is perpendicular to the direction of the line connecting the two positioning pins 24.

[0039] In this way, the user can control the cover 21 to move to a suitable position through the handle 23, and adjust the directions of the two positioning pins 24 so that the positioning pins are accurately inserted into the positioning holes of the I-shaped wheel.

[0040] In an optional embodiment, the cover body 21 and the connecting shaft section 22 are an integrally formed structure. Preferably, the cover body 21 and the connecting shaft section 22 are made of rubber.

[0041] The rubber cap 20 has low production cost, light weight, good wear resistance and support performance, and is suitable for use as an accessory of the pay-off shaft body 10 .

[0042] In an optional embodiment, the positioning pin 24 is a bolt, which passes through the cover body 21 from the second end surface of the cover body 21 and extends downward from the first end surface. The positioning pin formed by the bolt has good support strength and is not easy to break.

[0043] In combination with the above embodiments, the pay-off shaft designed by the utility model includes a pay-off shaft body and a cap used in conjunction with the body. The pay-off shaft body supports the bottom of the I-shaped wheel, and after the cap is connected to the pay-off shaft body, it can support the axial hole on the upper part of the I-shaped wheel and realize the circumferential fixation of the I-shaped wheel, the cap and the pay-off shaft body. When paying out the wire, there is no mutual friction between the I-shaped wheel and the shaft body, and a reliable support can be formed to avoid shaking or swinging during paying out the wire, thereby making the paying out stable.

[0044] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A pay-off shaft structure for maintaining stable pay-off, characterized in that: include: A pay-off shaft body (10), the pay-off shaft body (10) comprising a base (11), a first shaft section (12), a second shaft section (13) and a third shaft section (14), the first shaft section (12) being configured as a cylindrical structure, and the outer diameter of the first shaft section (12) matches the inner hole diameter of the I-shaped wheel, the second shaft section (13) being configured to have a gradually decreasing diameter, and the third shaft section (14) being configured as a shaft structure including a first cross-sectional shape; A cap (20), the cap (20) comprising a cap body (21) and a connecting shaft section (22); The connecting shaft section (22) is constructed with an outer diameter matching the inner diameter of the I-shaped wheel, and is provided with a socket (221) matching the third shaft section (14); when the connecting shaft section (22) is plugged into the third shaft section (14), the outer wall of the connecting shaft section (22) and the outer wall of the first shaft section (12) jointly form a supporting shaft surface for the I-shaped wheel.

2. The pay-off shaft structure for maintaining stable pay-off according to claim 1, characterized in that: The outer wall of the connecting shaft section (22) is a cylindrical support surface. When the I-shaped wheel is sleeved outside the pay-off shaft body (10), the cylindrical support surface extends downward from the inner hole at the upper end of the I-shaped wheel.

3. The pay-off shaft structure for maintaining stable pay-off according to claim 2, characterized in that: The length of the third shaft segment (14) is defined as A, the length of the second shaft segment (13) is defined as B, the length of the cylindrical support surface is defined as C, and A≦C≦A+B.

4. The pay-off shaft structure for maintaining stable pay-off according to claim 1, characterized in that: The first end face of the cover body (21) is provided with two positioning pins (24), the positioning pins are matched with the positioning holes on the end face of the spool, and when the positioning pins are in the positioning holes, the connecting shaft section (22) is completely inserted into the shaft hole of the spool.

5. The pay-off shaft structure for maintaining stable pay-off according to claim 4, characterized in that: The second end surface of the cover body (21) is provided with a handle (23), the handle (23) is constructed in a T shape, and the direction of the handle (23) is perpendicular to the direction of the line connecting the two positioning pins (24).

6. The pay-off shaft structure for maintaining stable pay-off according to claim 1, characterized in that: The first cross-sectional shape is a regular polygon or a waist shape.

7. The pay-off shaft structure for maintaining stable pay-off according to any one of claims 1 to 6, characterized in that: The cover body (21) and the connecting shaft section (22) are an integrally formed structure.

8. The pay-off shaft structure for maintaining stable pay-off according to claim 7, characterized in that: The cover body (21) and the connecting shaft section (22) are made of rubber material.

9. The pay-off shaft structure for maintaining stable pay-off according to claim 4, characterized in that: The positioning pin (24) is a bolt, which passes through the cover body (21) from the second end surface of the cover body (21) and extends downward from the first end surface.

10. The pay-off shaft structure for maintaining stable pay-off according to claim 1, characterized in that: The axis of the connecting shaft section (22) coincides with the axis of the first shaft section (12).

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