Aluminum-coated steel straightening device

Abstract

The utility model discloses an aluminum-clad steel straightening device, relates to the technical field of aluminum-clad steel production, and solves the problems of high labor intensity, poor straightening effect, high loss of straightening mechanical performance and the like in the existing straightening mode. Comprising a first straightening device and a second straightening device, the first straightening device and the second straightening device each comprise a connecting plate, a plurality of pressing wheels and a driving wheel pair, the connecting plates of the first straightening device and the second straightening device are perpendicularly arranged, and the pressing wheels are parallel to the corresponding connecting plates and rotationally connected to the connecting plates; the driving wheel pairs in the first straightening device and the second straightening device are located at the two ends respectively, at least one wheel in the driving wheel pairs is driven by a motor to rotate, and the aluminum-clad steel wire enters from the position between one driving wheel pair, passes through the position between the pressing wheels in the first straightening device and the second straightening device and then leaves from the position between the other driving wheel pair. The effects that the straightening effect is greatly improved, safety is improved, and the labor intensity of workers is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-clad steel production, in particular to an aluminum-clad steel straightening device. Background Art

[0002] Aluminum-clad steel wire is a bimetallic material composed of steel wire and aluminum based on continuous extrusion and cladding technology, and it is a key basic material for overhead lines. The processing process of aluminum-clad steel wire mainly includes: pre-drawing, heat treatment, cladding, wire drawing, rewinding and dividing into coils, stranding and other processes. After processing, the aluminum-clad steel wire is wound on an I-shaped reel, and the wire has a certain degree of bending. Therefore, it is necessary to straighten the aluminum-clad steel wire sample before detection.

[0003] At present, the commonly used straightening methods mainly include manual straightening and straightening by knocking with a wooden mallet, which have many problems such as high labor intensity, poor straightening effect, and large loss of mechanical properties of straightening. Usually, it takes about 30 times of folding back and knocking to straighten an aluminum-clad steel wire about 1 meter long, and the operation is time-consuming and laborious. Content of the Utility Model

[0004] The purpose of the utility model is to provide an aluminum-clad steel straightening device, which greatly improves the straightening effect, improves safety, and reduces the manual labor intensity.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] An aluminum-clad steel straightening device includes a first straightening device and a second straightening device for straightening aluminum-clad steel wire. Both the first straightening device and the second straightening device include a connecting plate, a plurality of pressing wheels and a pair of driving wheels. The connecting plates of the first straightening device and the second straightening device are vertically arranged. The pressing wheels are parallel to the corresponding connecting plates and are rotatably connected to the connecting plates. The pairs of driving wheels in the first straightening device and the second straightening device are respectively located at both ends. At least one wheel in the pair of driving wheels is driven to rotate by a motor. The aluminum-clad steel wire enters between a pair of driving wheels, passes between the pressing wheels in the first straightening device and the second straightening device, and then leaves between another pair of driving wheels.

[0007] By adopting the above technical solutions, the aluminum-clad steel wire is straightened by two groups of straightening devices. The rotation of the pair of driving wheels is driven by a motor to generate an active driving force, and there is no need for manual pulling through the straightening device; the two groups of straightening devices are installed at 90°. Both groups of straightening devices are equipped with motors and pairs of driving wheels. There are driving motors at both the inlet and outlet positions of the aluminum-clad steel wire, allowing the aluminum-clad steel to move between the straightening wheels, and the walking speed is adjusted by driving the motor.

[0008] Furthermore, there are 7 pressing wheels on each connecting plate.

[0009] By adopting the above technical solution, each straightening device is designed with 9 wheels, among which 2 wheels are driving wheel pairs and 7 wheels are straightening pressing wheels. The 9-wheel design has almost no strength and 1% elongation stress loss.

[0010] Furthermore, the wheel body size of the pressing wheel and / or the driving wheel pair is based on D = K * d, where D is the wheel body diameter of the pressing wheel and / or the driving wheel pair, K is the wheel size selection coefficient, and d is the wire diameter of the straightened aluminum-clad steel wire.

[0011] By adopting the above technical solution, the straightening effect is improved and mechanical loss is reduced.

[0012] Furthermore, the connecting plate includes a first connecting plate, a second connecting plate and a spacing adjusting plate. The pressing wheel and the driving wheel pair are detachably connected to the first connecting plate and the second connecting plate, and the spacing adjusting plate is detachably connected between the first connecting plate and the second connecting plate to adjust the spacing between the centers of the pressing wheel and the driving wheel pair in the width direction of the connecting plate.

[0013] By adopting the above technical solution, when the wheel body size of the pressing wheel and the driving wheel pair is changed, the center position can be adjusted by replacing the spacing adjusting plate so that the aluminum-clad steel wire can pass through the position therein.

[0014] Furthermore, the first straightening device and the second straightening device are connected to the corresponding mounting surfaces. A positioning block is connected to the middle of the spacing adjusting plate, and corresponding positioning grooves are provided on the mounting surfaces.

[0015] By adopting the above technical solution, the first straightening device and the second straightening device are installed according to the position in the middle of the spacing adjusting plate, so that before and after replacing different spacing adjusting plates, it is ensured that their center positions are on the same straight line and the steel wire can be straightened along the first straightening device and the second straightening device.

[0016] Furthermore, the value range of K is [15 - 50].

[0017] By adopting the above technical solution, the straightening effect is further improved.

[0018] Furthermore, when 1.6mm < d ≤ 3.0mm, the K value is selected as [26.6 - 50], and when 3.0mm < d < 5.2mm, the K value is selected as [15.3 - 26.6].

[0019] By adopting the above technical solution, the straightening effect is further improved.

[0020] Furthermore, the wheel body diameter of the pressing wheel and / or the driving wheel pair is 80mm.

[0021] By adopting the above technical solution, when the wheel diameters of the pressing wheel and the driving wheel pair are 80 mm, the straightening time is the shortest, and the tensile strength and the 1% elongation stress loss are the smallest.

[0022] Furthermore, the driving wheel pair includes a tungsten carbide coating on the outer periphery, and the thickness of the tungsten carbide coating is 0.05 mm.

[0023] By adopting the above technical solution, the straightening wheel is a straightening device for long-term repeated use. It is required that the straightening wheel has a certain wear resistance and is not too hard to prevent scratching the surface of the aluminum-clad steel; nor can it be too soft, otherwise the surface of the wheel is not wear-resistant; compared with the tungsten steel material with HRC 70-81, the hardness is too large and it is easy to scratch the surface of the aluminum-clad steel; the 45 steel after quenching treatment has HRC 42-48, the hardness is too small and it is not wear-resistant. The tungsten carbide coating in this application can not only meet the wear resistance but also will not be too hard.

[0024] Furthermore, a spacing adjusting device is also provided on the connecting plate to adjust the spacing between the pressing wheel and the driving wheel pair in the width direction of the connecting plate.

[0025] By adopting the above technical solution, it is convenient to adjust the spacing according to the wire diameter of the aluminum-clad steel wire.

[0026] In summary, the utility model has the following beneficial effects:

[0027] The aluminum-clad steel wire is straightened by two groups of straightening devices. The driving wheel pair is rotated by a motor to generate an active driving force, and there is no need for manual drawing through the straightening device; the two groups of straightening devices are installed at 90°. Both groups of straightening devices are equipped with motors and driving wheel pairs. There are driving motors at both the inlet and outlet positions of the aluminum-clad steel wire, allowing the aluminum-clad steel to travel between the straightening wheels, and the traveling speed is adjusted by the motor drive;

[0028] Each group of straightening devices is designed with 9 wheels. Compared with the 5-wheel, 7-wheel design or 11-wheel design, the straightening effect of the 5-wheel and 7-wheel designs for aluminum-clad steel is relatively poor, and it needs to be straightened repeatedly about 10-15 times. The 1% elongation stress loss of the aluminum-clad steel is about 2%. The 11-wheel design will cause the strength of the aluminum-clad steel to decrease by about 2.5%. The 9-wheel design in this application has almost no strength and 1% elongation stress loss;

[0029] When the wheel diameters of the pressing wheel and the driving wheel pair are 80 mm, the straightening time is the shortest, and the tensile strength and the 1% elongation stress loss are the smallest;

[0030] The utility model solves the problem that when straightening aluminum-clad steel, it is necessary to manually draw the aluminum-clad steel wire. The straightening effect is greatly improved. There is a risk of equipment injury when straightening the aluminum-clad steel wire manually. The improved motor-driven straightening device can avoid the risk of equipment injury and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a straightening device for aluminum-clad steel of the present utility model;

[0032] Figure 2 It is a schematic diagram of the spacing adjustment structure (hiding the motor) in another embodiment of the present utility model.

[0033] In the figure, 0 is the aluminum-clad steel wire; 1 is the first straightening device; 2 is the second straightening device; 3 is the connecting plate; 31 is the first connecting plate; 32 is the second connecting plate; 33 is the spacing adjustment plate; 34 is the positioning block; 4 is the pressing wheel; 5 is the driving wheel pair. Specific embodiments

[0034] The following further describes the specific embodiments of the present utility model in conjunction with the drawings. This embodiment does not constitute a limitation to the present utility model. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of this application.

[0035] A straightening device for aluminum-clad steel, as Figure 1 shown, includes a first straightening device 1 and a second straightening device 2 for straightening the aluminum-clad steel wire 0,

[0036] Both the first straightening device 1 and the second straightening device 2 include a connecting plate 3, a plurality of pressing wheels 4 and a driving wheel pair 5. The connecting plates 3 of the first straightening device 1 and the second straightening device 2 are vertically arranged. The pressing wheels 4 are parallel to the corresponding connecting plates 3 and are rotatably connected to the connecting plates 3. The driving wheel pairs 5 in the first straightening device 1 and the second straightening device 2 are respectively located at both ends. One wheel in the driving wheel pair 5 is driven to rotate by a motor. The aluminum-clad steel wire 0 enters between one driving wheel pair 5, passes between the pressing wheels 4 in the first straightening device 1 and the second straightening device 2, and then leaves between the other driving wheel pair 5.

[0037] As Figure 1 shown, the pressing wheels 4 are arranged staggeredly. There are 7 pressing wheels 4 on each connecting plate 3. Together with the driving wheel pair 5, each set of straightening devices is designed with 9 wheels, with almost no strength and 1% elongation stress loss;

[0038] The wheel diameters of the pressing wheels 4 and the driving wheel pair 5 are 80 mm. When the wheel diameters of the pressing wheels 4 and the driving wheel pair 5 are 80 mm, the straightening time is the shortest, and the tensile strength and 1% elongation stress loss are the smallest.

[0039] As Figure 1As shown in the figure, a spacing adjustment device is further provided on the connecting plate 3 to adjust the spacing between the pressing wheel 4 and the driving wheel pair 5 in the width direction of the connecting plate 3. In this embodiment, the spacing adjustment device includes a plurality of moving blocks and hand-tightening bolts. Among the pressing wheel 4 and the driving wheel pair 5, one side is a fixed wheel, and the motor drives and fixes the corresponding driving wheel pair 5 on this side to rotate. The other side is a moving wheel, which is rotatably connected to the corresponding moving block. The moving block is slidably connected to the connecting plate 3 along the width of the connecting plate 3. One end of the hand-tightening bolt is rotatably connected to the connecting plate 3, and the other end is threadedly connected to the moving block to drive the moving block to move. It can also be replaced by other adjustment devices.

[0040] As Figure 1 shown, the driving wheel pair 5 includes a tungsten carbide coating on its outer periphery. The thickness of the tungsten carbide coating is 0.05 mm, and the hardness is 50 - 70 HRC. Compared with the tungsten steel material with HRC 70 - 81, the hardness is relatively large and it is easy to scratch the surface of the aluminum-clad steel. After quenching treatment of 45 steel, the hardness is 42 - 48 HRC, which is relatively small and not wear-resistant. The tungsten carbide coating in this application can not only meet the wear resistance but also not have too large hardness.

[0041] In this embodiment, the motor is used to drive the straightening of the aluminum-clad steel, solving the problem of straightening the 0 sample of the aluminum-clad steel wire, saving manpower. The straightening time is reduced from the original 8 minutes / root to 2 minutes / root, and the mechanical property loss is smaller.

[0042] As Figure 1 shown, the pressing wheel 4 and the driving wheel pair 5 are detachably connected to the connecting plate 3, and their wheel body sizes can also be selected with different diameters according to the wire diameter. For example, the rotating shafts of the pressing wheel 4 and the driving wheel pair 5 are set as spline shafts or polygonal shafts, and radial screws are connected to the rotating shafts. The radial screws abut against both sides of the corresponding pressing wheel 4 and driving wheel pair 5 to realize the circumferential and axial limits of the pressing wheel 4 and the driving wheel pair 5 and facilitate their disassembly.

[0043] Specifically, according to D = K * d, where D is the wheel body diameter of the pressing wheel 4 and / or the driving wheel pair 5, in mm, K is the wheel size selection coefficient, and d is the wire diameter of the straightened aluminum-clad steel wire 0, in mm. Preferably, the value range of K is [15 - 50]. When 1.6 mm < d ≤ 3.0 mm, the K value is selected as [26.6 - 50]. When 3.0 mm < d < 5.2 mm, the K value is selected as [15.3 - 26.6]. Other parameters can also be selected.

[0044] As Figure 2 shown, in another embodiment, its general structure is the same as that of the previous embodiment, except that

[0045] the wheel body sizes are selected with different diameters according to the formula in the above embodiment through the wire diameter, and the spacing adjustment device in this embodiment is replaced or added with the following structure:

[0046] The connecting plate 3 is split into a first connecting plate 31, a second connecting plate 32 and a middle spacing adjusting plate 33. The pressing wheel 4 and the driving wheel pair 5 are detachably connected to the first connecting plate 31 and the second connecting plate 32. The spacing adjusting plate 33 is detachably connected between the first connecting plate 31 and the second connecting plate 32 to adjust the spacing between the centers of the pressing wheel 4 and the driving wheel pair 5 in the width direction of the connecting plate 3.

[0047] In this embodiment, a number of insertion rods are connected to the upper and lower sides of the spacing adjusting plate 33 and are inserted into the first connecting plate 31 and the second connecting plate 32 through the insertion rods. The spacing adjusting plate 33 further includes a number of adjusting fixing plates on the back. The two ends of the adjusting fixing plates are respectively connected to the first connecting plate 31 and the second connecting plate 32 by screws to achieve fixation, and it can be fixed by means of a long bolt passing through the upper and lower parts.

[0048] In this embodiment, for the convenience of positioning, the first straightening device 1 and the second straightening device 2 are connected to the corresponding mounting surfaces. A positioning block 34 is connected to the middle of the spacing adjusting plate 33. Corresponding positioning grooves are provided on the mounting surfaces (corresponding waist-shaped grooves are opened on the mounting surfaces to place the driving motor and the like and allow it to move and adjust). During installation, after replacing the spacing adjusting plates 33 with different widths, the positioning block 34 in the middle of the spacing adjusting plate 33 can still be aligned with the positioning grooves on the mounting surfaces for installation, so that the space between the pressing wheel 4 and the driving wheel pair 5 is in a straight line for the aluminum-clad steel wire 0 to pass through for straightening, which is convenient for positioning.

[0049] The above is only a preferred embodiment of the present invention and is not used to limit the present invention. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the technical solution of the present invention.

Claims

1. An aluminum-clad steel straightening device, characterized in that: It comprises a first straightening device and a second straightening device for straightening the aluminum-clad steel wire. The first straightening device and the second straightening device both comprise a connecting plate, a plurality of clamping wheels and a driving wheel pair. The connecting plates of the first straightening device and the second straightening device are vertically arranged, the clamping wheels are parallel to the corresponding connecting plates and are rotatably connected to the connecting plates, the driving wheel pairs in the first straightening device and the second straightening device are respectively located at two end positions, at least one wheel in the driving wheel pair is driven to rotate by a motor, the aluminum-clad steel wire enters between one driving wheel pair, passes between the clamping wheels in the first straightening device and the second straightening device, and then leaves from between the other driving wheel pair.

2. The aluminum-clad steel straightening device according to claim 1, characterized in that: There are 7 pressing wheels on each connecting plate.

3. The aluminum-clad steel straightening device according to claim 1, characterized in that: The wheel body size of the clamping wheel and / or driving wheel pair is based on D=K*d, where D is the wheel body diameter of the clamping wheel and / or driving wheel pair, K is the wheel size selection coefficient, and d is the wire diameter of the straightened aluminum-clad steel wire.

4. An aluminum-clad steel straightening device according to claim 1 or 3, characterized in that: The connecting plate includes a first connecting plate, a second connecting plate and a spacing adjustment plate. The clamping wheel and the driving wheel pair are detachably connected to the first connecting plate and the second connecting plate. The spacing adjustment plate is detachably connected between the first connecting plate and the second connecting plate to adjust the spacing between the centers of the clamping wheel and the driving wheel pair in the width direction of the connecting plate.

5. The aluminum-clad steel straightening device according to claim 4, characterized in that: The first straightening device and the second straightening device are connected to the corresponding installation surface, the middle part of the spacing adjustment plate is connected to the positioning block, and the installation surface is provided with a corresponding positioning groove.

6. The aluminum-clad steel straightening device according to claim 4, characterized in that: The value range of K is [15~50].

7. The aluminum-clad steel straightening device according to claim 5, characterized in that: When 1.6mm<d≤3.0mm, the K value is selected as [26.6~50]; when 3.0mm<d<5.2mm, the K value is selected as [15.3~26.6].

8. The aluminum-clad steel straightening device according to claim 1, characterized in that: The wheel body diameter of the clamping wheel and / or the driving wheel pair is 80 mm.

9. The aluminum-clad steel straightening device according to claim 1, characterized in that: The driving wheel pair includes a tungsten carbide coating on the outer periphery, and the thickness of the tungsten carbide coating is 0.05 mm.

10. The aluminum-clad steel straightening device according to claim 1, characterized in that: The connecting plate is also provided with a spacing adjustment device for adjusting the spacing between the clamping wheel and the driving wheel pair in the width direction of the connecting plate.

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