Novel vertical pay-off rack

Abstract

The novel vertical pay-off rack comprises a base, a mounting rack is arranged on the base, and a rotating shaft is vertically and rotatably arranged in a manner of penetrating through the mounting rack; a turntable is mounted at the upper end of the rotating shaft and can be used for fixing a coil framework for accommodating a stranded wire; a mounting sleeve is arranged at the bottom of the upper end of the mounting frame, the rotating shaft penetrates through the mounting sleeve, and a brake belt is wound on the outer side of the part, extending out of the mounting sleeve, of the rotating shaft; one end of the brake belt is fixedly connected with the side face of the installation frame, and the other end of the brake belt is fixedly connected with a sliding block which is movably connected with the installation frame and driven by a driving mechanism to move. The multiple brake belts are arranged at the bottom end of the rotating shaft, the brake belts can be tensioned through the driving mechanism, then friction between the brake belts and the rotating shaft is improved, resistance is provided for rotation of the rotating disc, a stranded wire can be tensioned in the paying-off process, and the tensioning force of the stranded wire is guaranteed; the pay-off rack is convenient to disassemble during maintenance and replacement, reduces the cost input, and can reduce the vibration and noise of the whole pay-off rack.

Description

Technical Field

[0001] The utility model relates to the technical field of wire pay-off racks, in particular to a novel vertical wire pay-off rack. Background Art

[0002] The steel strand is a twisted steel cable composed of multiple high-strength steel wires. According to the number of steel wires in a steel strand, it can be divided into 2-wire steel strand, 3-wire steel strand, 7-wire steel strand and 19-wire steel strand. During the stranding process of the steel strand, multiple steel wires are respectively drawn out from the pay-off drum and arrive at the strander for twisting. Although the existing pay-off drum has a relatively simple structure, it cannot tension the steel strand when in use. During the twisting process, the pay-off drum is fixed to a designated location. The strand is prone to loosening during the pay-off process, and the rotation of the pay-off drum needs to be manually controlled, which poses certain risks. Therefore, in view of the above situation, the inventor has previously designed a tension pay-off stand, such as patent CN217650586U, which can limit the rotation of the pay-off drum through the reduction motor 9, the slewing bearing 7 and the driving gear 8, so as to achieve the function of tensioning the twisted wire. However, in actual use, the gears need to maintain a stressed meshing state for a long time, which generates large noise and vibration, affecting the working environment. In addition, the long-term meshing causes large gear loss, and the gears and slewing bearings need to be replaced and repaired frequently, which makes replacement difficult and the cost of frequent replacement and repair is high. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a novel vertical pay-off stand.

[0004] The technical solution of this utility model is as follows:

[0005] A novel vertical pay-off frame comprises a base, a mounting frame is arranged on the base, and a rotating shaft is arranged vertically and rotatably through the mounting frame;

[0006] A rotating disk is installed at the upper end of the rotating shaft, which can fix the coil skeleton for storing the stranded wire;

[0007] The bottom of the upper end of the mounting frame is provided with a mounting sleeve, and the rotating shaft passes through the mounting sleeve, and a brake belt is wound around the outer side of the portion of the rotating shaft extending out of the mounting sleeve;

[0008] One end of the brake belt is fixedly connected to the side of the mounting frame, and the other end is fixedly connected to a slider. The slider is movably connected to the mounting frame and is driven to move by a driving mechanism.

[0009] In order to improve the braking and deceleration of the rotating shaft and then increase the tensioning force on the coil skeleton, a plurality of brake belts are provided and are arranged at intervals in the vertical direction along the length direction of the rotating shaft.

[0010] In order to limit the position of the brake band, a plurality of annular partitions are arranged at intervals on the outer edge surface of the rotating shaft, and the brake band is located between two adjacent partitions.

[0011] In order to ensure balance when braking the rotating shaft, two braking belts are provided and are arranged opposite to the fixed position of the mounting frame along the axis of the rotating shaft.

[0012] The connection method of the brake belt is that the side of the mounting frame includes a mounting plate, and the mounting plate is set in an L shape, a fixing block is installed on the mounting plate, and one end of the brake belt is fixedly connected to the fixing block;

[0013] The slide block is slidably connected to the mounting plate, and limit plates are arranged on both sides of the slide block in the sliding direction.

[0014] The specific design of the driving mechanism is that the driving mechanism includes a screw, which passes through the mounting plate and is rotatably connected to the slider, and a handle is installed at one end of the screw away from the mounting plate, and a sleeve threadedly connected to the screw is installed on one side of the mounting plate.

[0015] A buffer spring is sleeved on the outer side of the lead screw, and the buffer spring is located between the lead screw and the sleeve.

[0016] The driving mechanism can also be designed so that the tension of the brake belt can be automatically controlled. A support plate is provided on the side of the mounting plate away from the mounting frame. The driving mechanism includes a telescopic cylinder provided on the support plate, and the output end of the telescopic cylinder passes through the mounting plate and is connected to the slider.

[0017] In order to improve the stability of the mounting plate, a rib is provided on one side of the mounting frame, and the rib is in contact with the bottom of the mounting plate.

[0018] In order to improve the support for the turntable, a plurality of columns are arranged on the upper end of the base edge, an annular support frame is arranged on the top of the base, and a plurality of groups of moving wheels are installed on the bottom edge of the turntable, and the moving wheels are in contact with the annular support frame.

[0019] The beneficial effects of the utility model are as follows: the utility model is a novel vertical pay-off stand, which is firstly driven by the cooperation of the rotating shaft to drive the turntable, and a coil skeleton is installed on the turntable, so as to realize the pay-off function when preparing the stranded wire; secondly, a plurality of brake belts are arranged at the bottom end of the rotating shaft, and the brake belts can be tightened by the driving mechanism, thereby increasing the friction with the rotating shaft, providing resistance for the rotation of the turntable, so that the stranded wire can be tightened when paying out the wire, and the tensioning force of the stranded wire is ensured; and the use of brake belts in this scheme has a lower manufacturing cost than the prior art, is more convenient to disassemble and reduce cost investment during maintenance and replacement, and can reduce the vibration and noise of the entire pay-off stand; finally, the manual control of the lead screw makes the tensioning of the brake belt more convenient and quick, or the control method of the electric cylinder is used, and the tensioning force can also be accurately provided by the servo control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a schematic structural diagram of the first embodiment;

[0023] Figure 2 It is a partial cross-sectional view of the first embodiment;

[0024] Figure 3 It is a partial top view of the first embodiment;

[0025] Figure 4 This is a schematic diagram of the installation of the brake band of the first embodiment;

[0026] Figure 5 It is a schematic structural diagram of the second embodiment;

[0027] The components represented by the reference numerals in the figure are:

[0028] 1. Base; 2. Mounting frame; 21. Top plate; 22. Support column; 23. Mounting plate; 24. Fixing block; 25. Limiting plate; 3. Rotating shaft; 4. Turntable; 5. Coil skeleton; 6. Mounting sleeve; 7. Brake belt; 8. Slider; 9. Driving mechanism; 91. Lead screw; 92. Handle; 93. Sleeve; 94. Buffer spring; 95. Telescopic cylinder; 10. Annular partition; 11. Support plate; 12. Rib plate; 13. Column; 14. Annular support frame; 15. Moving wheel. DETAILED DESCRIPTION

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0030] Embodiment 1

[0031] As mentioned in the background technology, when preparing steel strands, multiple strands need to be twisted into shape. When twisted, the multiple strands are usually wound on a pay-off reel, that is, the coil skeleton 5. However, the strands are prone to loosening during pay-off and cannot be tensioned. The technology in the inventor's previous patent can achieve the tensioning function when actually used, but there are certain defects, which have a certain impact on the factory environment and staff, and the tensioning components are difficult and costly to repair and replace. Therefore, the inventor has improved on the existing technology and designed a new vertical pay-off frame, which is explained in detail below with reference to the drawings.

[0032] This embodiment provides a new vertical pay-off stand. Figure 1 , including a base 1. The base 1 in this solution adopts four angle steels and is fixed in a cross shape, which can reduce the weight of the entire wire pay-off frame. A mounting frame 2 is arranged on the base 1. The mounting frame 2 is installed in the middle position of the four angle steels, and the mounting frame 2 includes a top plate 21 at the upper end, and four supporting columns 22 are arranged at the bottom of the top plate 21. A bottom plate is arranged at the bottom of the supporting columns 22 and is fixed to the base 1.

[0033] On the basis of the above structure, a rotating shaft 3 is vertically and rotatably arranged through the mounting frame 2, that is, a top plate 21 is arranged through the mounting frame 2, and a limiting sleeve is arranged at the upper end of the top plate 21. The rotating shaft 3 and the limiting sleeve are rotatably arranged and can fix the rotating shaft 3 in the vertical direction. A turntable 4 is installed at the upper end of the rotating shaft 3, which can fix a coil skeleton 5 for storing the stranded wire. The stranded wire is wound around the outside of the coil skeleton 5. When preparing the steel stranded wire, the stranded wire can be pulled to drive the coil skeleton 5 to rotate along with the rotating shaft 3.

[0034] It should be noted that a plurality of columns 13 are provided at the upper end of the edge of the base 1. In the present embodiment, four columns 13 are provided, which are respectively installed on the upper ends of four angle steels. An annular support frame 14 is provided at the top of the column 13. A plurality of sets of moving wheels 15 are installed at the bottom edge of the turntable 4, and the moving wheels 15 are in contact with the annular support frame 14. When the turntable 4 rotates, the moving wheels 15 rotate along the upper end surface of the annular support frame 14 with the turntable 4, so as to support the turntable 4 on the basis of ensuring the smooth rotation of the turntable 4.

[0035] In order to be able to tighten the stranded wire, it is achieved by controlling the rotation speed of the rotating shaft 3, wherein a mounting sleeve 6 is provided at the bottom of the top plate 21 of the mounting frame 2, and the rotating shaft 3 passes through the mounting sleeve 6 and is rotatably connected to the mounting sleeve 6. A brake band 7 is wrapped around the outer side of the portion of the rotating shaft 3 extending out of the mounting sleeve 6. The brake band 7 is a purchased part and will not be described in detail. The present scheme is designed for the tensioning of the brake band 7. Specifically, one end of the brake band 7 is fixedly connected to the side of the mounting frame 2, and the other end is fixedly connected to a slider 8. Both ends of the purchased brake band 7 are cylindrical structures, which are inserted into the cylindrical structure and fixed to the corresponding positions by positioning bolts. The slider 8 is movably connected to the mounting frame 2 and driven to move by a driving mechanism 9. Under the drive of the driving mechanism 9, the slider 8 can be driven to move, and then the brake band 7 can be tightened or loosened, thereby increasing or reducing the friction between the brake band 7 and the rotating shaft 3, thereby realizing the control of the rotation speed of the rotating shaft 3.

[0036] Specifically, the side of the support column 22 of the mounting frame 2 includes a mounting plate 23, and the mounting plate 23 is set in an L shape, and the horizontal end is connected to the support column 22, and a rib plate 12 is installed on the side of the mounting frame 2, that is, it is installed on the side of the support column 22 on both sides, and is arranged in contact with the mounting plate 23 to support the mounting plate 23. A fixing block 24 is installed on the mounting plate 23, and one end of the brake belt 7 is fixedly connected to the fixing block 24. Secondly, the slider 8 is slidably connected to the mounting plate 23, and the sliding is perpendicular to the vertical end of the mounting plate 23. Limiting plates 25 are set on both sides of the sliding direction of the slider 8 to be able to move the slider 8 Provide guidance, and the inventor of the driving mechanism 9 has designed two driving modes. In this embodiment, it is manually driven, which includes a screw 91. The screw 91 passes through the mounting plate 23 and is rotatably connected to the slider 8. The two can be fixed by bearings, and a handle 92 is installed at the end of the screw 91 away from the mounting plate 23. The handle 92 is fixedly connected to the screw 91 and can drive the screw 91 to rotate. A sleeve 93 threadedly connected to the screw 91 is installed on one side of the mounting plate 23. The handle 92 can drive the screw 91 to rotate. Under the action of the thread of the sleeve 93, it can move forward or backward along a specified direction, thereby driving the slider 8 to slide.

[0037] On the basis of the above structure, in order to further increase the tensioning force of the screw 91 on the brake belt 7, and to reduce the vibration of the pay-off frame during the pay-off process, which may cause a slight displacement of the screw 91, a buffer spring 94 is provided on the outside of the screw 91, and the buffer spring 94 is located between the screw 91 and the sleeve 93. The buffer spring 94 can provide support force to the handle 92 and the screw 91, and can absorb the displacement of the screw 91 caused by the vibration of the pay-off frame.

[0038] In the present embodiment, in order to improve the deceleration effect on the rotating shaft 3, a plurality of brake belts 7 are provided, and are arranged at intervals in the upper and lower directions along the length direction of the rotating shaft 3. In addition, in order to make the brake belt 7 in a relatively fixed state along the direction of the rotating shaft 3, a plurality of annular partitions 10 are arranged at intervals on the outer edge surface of the rotating shaft 3, and the brake belt 7 is located between two adjacent partitions. The two adjacent annular partitions 10 limit the brake belt 7 in the vertical direction. Specifically, two brake belts 7 are provided, and are arranged relative to the fixed position of the mounting frame 2 along the axis of the rotating shaft 3, that is, they are arranged on opposite sides of the rotating shaft 3 to ensure the balance of the force on the rotating shaft 3 during braking. Two corresponding driving mechanisms 9 are provided, which are respectively used to drive the upper and lower brake belts 7 separately.

[0039] Embodiment 2

[0040] The inventor has also designed an electric control method for driving the slider 8, in which the driving mechanism 9 is replaced on the basis of the above-mentioned wire-paying frame. In this embodiment, the driving mechanism 9 includes a telescopic cylinder 95, which can be a servo electric cylinder, and in order to ensure the stability of the telescopic cylinder 95, a support plate 11 is provided on the side of the mounting plate 23 away from the mounting frame 2, and the rib plate 12 extends to the bottom of the support plate 11, and supports the support plate 11 and the mounting plate 23 at the same time. The telescopic cylinder 95 is installed on the support plate 11, and its output end passes through the mounting plate 23 and is connected to the slider 8. The tension of the brake belt 7 can be adjusted by retracting and extending the telescopic cylinder 95, and the tension of the brake belt 7 can be controlled by the servo system, thereby improving the automation degree of the wire-paying frame.

Claims

1. A novel vertical pay-off stand, comprising a base (1), characterized in that: The base (1) is provided with a mounting frame (2), and a rotating shaft (3) is vertically and rotatably arranged through the mounting frame (2); A rotating disk (4) is installed at the upper end of the rotating shaft (3) and is capable of fixing a coil skeleton (5) for storing the stranded wire; A mounting sleeve (6) is arranged at the bottom of the top plate (21) of the mounting frame (2), and the rotating shaft (3) passes through the mounting sleeve (6), and a brake belt (7) is arranged around the outer side of the portion of the rotating shaft (3) extending out of the mounting sleeve (6); One end of the brake belt (7) is fixedly connected to the side of the mounting frame (2), and the other end is fixedly connected to a slider (8); the slider (8) is movably connected to the mounting frame (2) and is driven to move by a driving mechanism (9).

2. The novel vertical pay-off stand according to claim 1 is characterized in that: The braking belts (7) are provided in plurality and are arranged at intervals up and down along the length direction of the rotating shaft (3).

3. The novel vertical pay-off stand according to claim 2 is characterized in that: The outer edge surface of the rotating shaft (3) is provided with a plurality of annular partitions (10) at intervals, and the braking band (7) is located between two adjacent partitions.

4. The novel vertical pay-off stand according to claim 3 is characterized in that: Two brake belts (7) are provided and are arranged opposite to the fixed position of the mounting frame (2) along the axis of the rotating shaft (3).

5. The novel vertical pay-off stand according to claim 1 is characterized in that: The side surface of the support column (22) of the mounting frame (2) includes a mounting plate (23), and the mounting plate (23) is arranged in an L shape, a fixing block (24) is installed on the mounting plate (23), and one end of the brake belt (7) is fixedly connected to the fixing block (24); The slider (8) is slidably connected to the mounting plate (23), and limiting plates (25) are provided on both sides of the sliding direction of the slider (8).

6. The novel vertical pay-off stand according to claim 5 is characterized in that: The driving mechanism (9) comprises a lead screw (91), the lead screw (91) passes through the mounting plate (23) and is rotatably connected to the slider (8), and a handle (92) is installed at one end of the lead screw (91) away from the mounting plate (23), and a sleeve (93) threadedly connected to the lead screw (91) is installed on one side of the mounting plate (23).

7. The novel vertical pay-off stand according to claim 6 is characterized in that: A buffer spring (94) is sleeved on the outer side of the lead screw (91), and the buffer spring (94) is located between the lead screw (91) and the sleeve (93).

8. The novel vertical pay-off stand according to claim 5 is characterized in that: A support plate (11) is provided on a side of the mounting plate (23) away from the mounting frame (2), and the driving mechanism (9) comprises a telescopic cylinder (95) provided on the supporting plate (11), and an output end of the telescopic cylinder (95) passes through the mounting plate (23) and is connected to a slide block (8).

9. The novel vertical pay-off stand according to claim 5 is characterized in that: A rib plate (12) is arranged on the side of the mounting frame (2), and the rib plate (12) is arranged in contact with the bottom of the mounting plate (23).

10. The novel vertical pay-off stand according to claim 1 is characterized in that: A plurality of columns (13) are arranged at the upper end of the edge of the base (1), an annular support frame (14) is arranged at the top of the columns (13), and a plurality of groups of moving wheels (15) are installed at the bottom edge of the turntable (4), and the moving wheels (15) are in contact with the annular support frame (14).

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