Spool paying-off jacking device

Abstract

The utility model relates to the technical field of steel cord spool pay-off equipment, in particular to a spool pay-off jacking device which comprises a pay-off shaft and a tensioning sleeve, the tensioning sleeve is arranged to slide in the axial direction of the pay-off shaft, a conical part is arranged on the pay-off shaft, the conical part is arranged to be a conical part, and the tensioning sleeve can slide in the axial direction of the pay-off shaft. The diameter of the pay-off shaft is gradually increased from the first end to the second end of the pay-off shaft; the tensioning sleeve is arranged on the pay-off shaft, the pay-off shaft is provided with the conical part corresponding to the tensioning sleeve, when the tensioning sleeve slides towards the second end of the pay-off shaft along the conical part, the tensioning sleeve is stressed to expand, the diameter of the tensioning sleeve is gradually increased, the tensioning sleeve is tensioned and fixed through the inner side of the center hole of the spool, and the spool is fixed in the axial direction and the radial direction under the action of tensioning force; the spool can rotate synchronously with the pay-off shaft, so that the spool cannot move in the pay-off process, the pay-off speed can be accurately controlled, and the pay-off precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord spool pay-off equipment, in particular to a spool pay-off and tightening device. Background Art

[0002] The I-spool is a tool used to wind metal wire or wire rope. It is widely used in the take-up and pay-out processes of steel cord production. When the pay-out I-spool of the steel cord production line pays out the wire, the pay-out shaft drives the I-spool to rotate and pay out the wire. In order to accurately control the pay-out accuracy, the I-spool needs to be fixed on the pay-out shaft so that the I-spool and the pay-out shaft can rotate synchronously.

[0003] At present, a latch is usually used to fix the I-shaped wheel to the pay-off shaft. However, in order to enable the latch to be inserted smoothly, the matching tolerance of the corresponding pin holes on the I-shaped wheel and the pay-off shaft is large. Therefore, after the I-shaped wheel is fixed, there is a certain gap between the pay-off wheel and the I-shaped wheel. During operation, the I-shaped wheel is prone to movement, the pay-off accuracy is difficult to control, and the latch is prone to wear. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the first aspect of the utility model proposes a spool wire-laying and tightening device, comprising:

[0005] Pay off the spool;

[0006] A tension sleeve is sleeved on the first end of the pay-off shaft along the axial direction of the pay-off shaft, and the tension sleeve is configured to be able to slide along the axial direction of the pay-off shaft;

[0007] Wherein, the pay-off shaft is provided with a tapered portion, and the tapered portion is configured such that the diameter gradually increases from the first end to the second end of the pay-off shaft;

[0008] When the tension sleeve slides along the tapered portion toward the second end of the pay-off shaft, the tension sleeve expands due to force and its diameter gradually increases. When the tension sleeve slides along the tapered portion toward the first end of the pay-off shaft, its diameter gradually decreases.

[0009] Preferably, the tension sleeve is provided with a plurality of strip grooves which are distributed circumferentially and opened along the axial direction of the tension sleeve, and one end of the strip groove is provided with an opening for increasing the elasticity of the tension sleeve.

[0010] Preferably, the closed end of the strip-shaped groove is provided with an arc-shaped groove for dispersing shear stress.

[0011] Preferably, one end of the tension sleeve is coaxially connected to a connecting cap, a freely rotatable locking bolt is connected to the center of the connecting cap, the end face of the first end of the pay-off shaft is provided with a threaded hole corresponding to the locking bolt, and the locking bolt is connected to the threaded hole.

[0012] Preferably, a stepped through hole is opened at the center of the connecting cap, and the locking bolt is arranged in the stepped through hole.

[0013] Preferably, a bearing is provided in the step through hole, and the locking bolt is connected to the step through hole through the bearing.

[0014] Preferably, the first end of the pay-off shaft is provided with a positioning portion for radially limiting the tension sleeve.

[0015] Preferably, a connecting disk for connecting to a wire-paying machine is coaxially fixed to the second end of the wire-paying shaft.

[0016] Preferably, the tension sleeve is connected to a plurality of rubber strips distributed circumferentially and arranged axially.

[0017] Preferably, the thickness of the rubber strip is 5.0-8.0 mm.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] A tensioning sleeve is arranged on the pay-off shaft, and the pay-off shaft is provided with a tapered portion corresponding to the tensioning sleeve. When the tensioning sleeve slides along the tapered portion toward the second end of the pay-off shaft, the tensioning sleeve is forced to expand, and the diameter gradually increases, and the I-shaped wheel is tightened and fixed by the inner measurement of the center hole of the I-shaped wheel. Under the action of the tensioning force, the axial and radial directions of the I-shaped wheel are fixed, and the I-shaped wheel can rotate synchronously with the pay-off shaft, so that the I-shaped wheel will not move during the pay-off process, the pay-off speed can be accurately controlled, and the pay-off accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 It is a structural schematic diagram of the I-shaped wheel wire-laying and tightening device shown in the utility model;

[0022] Figure 2 It is a disassembled schematic diagram of the I-shaped wheel pay-off and tightening device shown in the utility model;

[0023] Figure 3 The utility model is a schematic structural diagram of a tensioning sleeve provided with a rubber strip in an I-shaped wheel wire paying-off and tightening device.

[0024] In the figure, 1, pay-off shaft; 11, tapered portion; 12, positioning portion; 13, connecting plate; 101, threaded hole; 2, tension sleeve; 21, rubber strip; 201, strip groove; 202, arc groove; 3, connecting cap; 301, stepped through hole; 4, locking bolt. DETAILED DESCRIPTION

[0025] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0026] At present, a pin is usually used to fix the I-spool to the pay-off shaft. However, in order to ensure smooth insertion of the pin, the matching tolerance of the corresponding pin holes on the I-spool and the pay-off shaft is large, resulting in a certain gap between the pay-off wheel and the I-spool after the I-spool is fixed. The I-spool is prone to move during operation, the pay-off accuracy is difficult to control, and the pin is prone to wear.

[0027] Combination Figure 1-Figure 3 As shown, the utility model provides an I-spool wire-paying and tightening device, comprising a wire-paying shaft 1 and a tensioning sleeve 2, wherein the tensioning sleeve 2 is sleeved on the first end of the wire-paying shaft 1 along the axial direction of the wire-paying shaft 1, and the tensioning sleeve 2 is configured to be able to slide along the axial direction of the wire-paying shaft 1, and a tapered portion 11 is provided on the wire-paying shaft 1, and the diameter of the tapered portion 11 gradually increases from the first end of the wire-paying shaft 1 to the second end.

[0028] In this way, when the tensioning sleeve 2 slides along the tapered portion 11 toward the second end of the pay-off shaft 1, the tensioning sleeve 2 expands due to the force, and the diameter gradually increases, and it is tightened and fixed by the inner measurement of the center hole of the I-shaped wheel. Under the action of the tensioning force, the axial and radial directions of the I-shaped wheel are fixed, and the I-shaped wheel can rotate synchronously with the pay-off shaft 1, so that the I-shaped wheel will not move during the pay-off process, and the pay-off speed can be accurately controlled to improve the pay-off accuracy. When the tensioning sleeve 2 slides along the tapered portion 11 toward the first end of the pay-off shaft 1, the diameter of the tensioning sleeve 2 gradually decreases, and the tensioning sleeve 2 does not contact the I-shaped wheel. At this time, the I-shaped wheel can be slid axially along the pay-off shaft 1 and removed.

[0029] When the tension sleeve 2 expands, the outer side contacts the inner wall of the center hole of the spool. Since the spool needs to be recycled, in order to avoid deformation and damage of the center hole of the spool, Figure 3 As shown, the tension sleeve 2 is connected to a plurality of rubber strips 21 distributed circumferentially and arranged axially. When the tension sleeve 2 expands, the rubber strips 21 contact the inner wall of the center hole of the spool, playing a role of buffer protection.

[0030] In an optional embodiment, the thickness of the rubber strip 21 is 5.0-8.0 mm, and preferably the thickness of the rubber strip 21 is 8.0 mm, so that the rubber strip 21 has a sufficient deformation buffer distance.

[0031] Combination Figure 1 and Figure 2As shown, one end of the tensioning sleeve 2 is coaxially connected to a connecting cap 3, and a freely rotatable locking bolt 4 is connected to the center of the connecting cap 3. A threaded hole 101 corresponding to the locking bolt 4 is provided on the end face of the first end of the pay-off shaft 1, and the locking bolt 4 is connected to the threaded hole 101. By tightening the locking bolt 4, the tensioning sleeve 2 can be pushed toward the second end of the pay-off shaft 1 to expand the tensioning sleeve 2.

[0032] Furthermore, a stepped through hole 301 is provided at the center of the connecting cap 3 , and the locking bolt 4 is disposed in the stepped through hole 301 , so that the head of the locking bolt 4 can be received in the stepped through hole 301 , thereby reducing space occupation.

[0033] In a specific embodiment, a bearing is provided in the step through hole 301, and the locking bolt 4 is connected to the step through hole 301 through the bearing. The bearing can be used to fix the axial position of the locking bolt 4 on the connecting cap 3. When the locking bolt 4 is screwed in or out, it can drive the connecting cap 3 and the tensioning sleeve 2 to move synchronously. Therefore, when the tensioning sleeve 2 needs to be removed, the tensioning sleeve 2 can be taken out by screwing out the locking bolt 4, thereby preventing the tensioning sleeve 2 from being stuck with the pay-off shaft 1 and being difficult to slide.

[0034] Furthermore, the tension sleeve 2 is provided with a plurality of strip grooves 201 distributed circumferentially and opened along the axial direction of the tension sleeve 2 , and one end of the strip groove 201 is provided with an opening, so that the tension sleeve 2 is divided along the circumferential direction, which can increase the elasticity of the tension sleeve 2 .

[0035] In a preferred embodiment, the closed end of the strip groove 201 is provided with an arc groove 202 for dispersing shear stress. When the tensioning sleeve 2 expands, the shear stress generated by the deformation of the strip groove 201 is transmitted to the closed end of the strip groove 201. The arc groove 202 can disperse the stress, avoid stress concentration, and prevent the tensioning sleeve 2 from cracking and deforming.

[0036] Combination Figure 2 As shown, the first end of the pay-off shaft 1 is provided with a positioning portion 12 for radially limiting the tensioning sleeve 2. The diameter of the positioning portion 12 matches the inner diameter of the tensioning sleeve 2, so that the tensioning sleeve 2 can slide on the positioning portion 12, and the tensioning sleeve 2 will not deviate radially. Therefore, when one end of the tensioning sleeve 2 contacts and slides with the tapered portion 11, the other end of the tensioning sleeve 2 slides along the positioning portion 12, and is radially limited by the positioning portion 12 to prevent the tensioning sleeve 2 from tilting when it expands.

[0037] Furthermore, a connecting plate 13 for connecting to the wire-paying machine is coaxially fixed to the second end of the wire-paying shaft 1. The connecting plate 13 is provided with a mounting hole corresponding to the output end of the wire-paying machine. The connecting plate 13 is coaxially fixed to the output end of the wire-paying machine by bolts.

[0038] In combination with the above embodiments, a tensioning sleeve 2 is provided on the pay-off shaft 1, and the pay-off shaft 1 is provided with a tapered portion 11 corresponding to the tensioning sleeve 2. When the tensioning sleeve 2 slides along the tapered portion 11 toward the second end of the pay-off shaft 1, the tensioning sleeve 2 is forced to expand, and the diameter gradually increases, and it is tightened and fixed by the inner measurement of the center hole of the I-shaped wheel. Under the action of the tensioning force, the axial and radial directions of the I-shaped wheel are fixed, and the I-shaped wheel can rotate synchronously with the pay-off shaft 1, so that the I-shaped wheel will not move during the pay-off process, and the pay-off speed can be accurately controlled to improve the pay-off accuracy.

[0039] 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 spool pay-off and tightening device, characterized in that: include: Pay-off spool (1); A tension sleeve (2) is sleeved on a first end of the pay-off shaft (1) along the axial direction of the pay-off shaft (1), and the tension sleeve (2) is configured to be able to slide along the axial direction of the pay-off shaft (1); The pay-off shaft (1) is provided with a tapered portion (11), and the tapered portion (11) is configured such that the diameter gradually increases from the first end to the second end of the pay-off shaft (1); When the tension sleeve (2) slides along the tapered portion (11) toward the second end of the pay-off shaft (1), the tension sleeve (2) is forced to expand and its diameter gradually increases; when the tension sleeve (2) slides along the tapered portion (11) toward the first end of the pay-off shaft (1), the diameter of the tension sleeve (2) gradually decreases.

2. The spool pay-off and tightening device according to claim 1, characterized in that: The tension sleeve (2) is provided with a plurality of strip grooves (201) distributed in the circumferential direction and opened along the axial direction of the tension sleeve (2); one end of the strip groove (201) is provided with an opening for increasing the elasticity of the tension sleeve (2).

3. The spool wire-laying and tightening device according to claim 2, characterized in that: The closed end of the strip-shaped groove (201) is provided with an arc-shaped groove (202) for dispersing shear stress.

4. The spool wire-laying and tightening device according to claim 1, characterized in that: One end of the tension sleeve (2) is coaxially connected to a connecting cap (3), and a freely rotatable locking bolt (4) is connected to the center of the connecting cap (3). The end surface of the first end of the pay-off shaft (1) is provided with a threaded hole (101) corresponding to the locking bolt (4), and the locking bolt (4) is connected to the threaded hole (101).

5. The spool pay-off and tightening device according to claim 4, characterized in that: A stepped through hole (301) is provided at the center of the connecting cap (3), and the locking bolt (4) is arranged in the stepped through hole (301).

6. The spool wire-laying and tightening device according to claim 5, characterized in that: A bearing is provided in the stepped through hole (301), and the locking bolt (4) is connected to the stepped through hole (301) via the bearing.

7. The spool pay-off and tightening device according to claim 1, characterized in that: The first end of the pay-off shaft (1) is provided with a positioning portion (12) for radially limiting the tension sleeve (2).

8. The spool pay-off and tightening device according to claim 1, characterized in that: A connecting disk (13) for connecting to a wire-releasing machine is coaxially fixed to the second end of the wire-releasing shaft (1).

9. The spool pay-off and tightening device according to claim 1, characterized in that: The tension sleeve (2) is connected to a plurality of rubber strips (21) distributed circumferentially and arranged axially.

10. The spool wire-laying and tightening device according to claim 9, characterized in that: The thickness of the rubber strip (21) is 5.0-8.0 mm.

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