Wire rod stress rewinding device for stranded wire

Abstract

The utility model relates to a wire rod stress rewinding device for stranded wire, belong to metallurgical industry metal wire rod processing equipment technical field. Technical scheme is: vertical correction wheel group (100) and horizontal straightening wheel group (200) all contain four straightening wheels that are arranged in cross shape, a stress wheel, a passive wheel and two adjusting wheels, the stress wheel and passive wheel are opposite arrangement, two adjusting wheels are opposite arrangement, the stress wheel and two adjusting wheels in vertical correction wheel group (100) and horizontal straightening wheel group (200) are respectively connected through the sliding block sliding on vertical correction wheel group backplate (110) and horizontal correction wheel group backplate (210), the stress wheel in vertical correction wheel group (100) and horizontal straightening wheel group (200) all are equipped with adjustable lever mechanism. The utility model has the beneficial effect that: can reduce wire rod residual stress while guaranteeing the mechanical property of wire rod, and reduce the damage of heat treatment to the coating, play wire rod straightening, break detection and so on.

Description

Technical Field

[0001] This utility model relates to a stress rewinding device for stranded wires, belonging to the technical field of metal wire processing equipment in the metallurgical industry. Background Technology

[0002] During the stranded wire production process, residual stress and microscopic defects in the monofilaments caused by cold working lead to three major technical challenges: First, residual stress causes monofilament warping, which accumulates into a "lantern" shape during the stranding stage, resulting in overall deformation and abnormal expansion of the local diameter, forcing the production line to stop for repairs and causing approximately 15-30% material loss. Second, in high-end applications, such as aluminum-clad steel stranded wire for power transmission conductors, the wire must be absolutely joint-free; however, any interruption in the processing will directly lead to the scrapping of the entire roll, typically 500-2000 kg, resulting in significant economic losses. Third, due to the difference in properties between the cladding (aluminum) and the core (steel) of aluminum-clad steel and other coated wires, cladding cracking or interface peeling is highly likely to occur during heat treatment to relieve stress. Current industry solutions mainly rely on heat treatment of the wire to relieve stress through recrystallization, but the strength of the treated aluminum-clad steel wire decreases drastically, and energy consumption is enormous.

[0003] Theoretical research shows that cold-worked filaments can undergo alternating tension-compression plastic deformation to promote dislocation reorganization within the material: when the surface fibers are under tension, dislocations slip and release elastic strain energy; when the core fibers are under compression, the dislocation entanglement network is reconstructed. After multiple cycles, the residual stress gradient decreases, thus improving the filament's plasticity. However, existing straightening equipment has key drawbacks: ① The spacing between straightening rollers is fixed, making it unable to adapt to the stress adjustment requirements of wire diameters from Φ2 to 12 mm; ② Bending stress control relies on experience-based adjustments and lacks quantitative methods; ③ Vertical / horizontal deformation correction is separated, resulting in insufficient pass rate for spatial warpage correction. Utility Model Content

[0004] The purpose of this invention is to provide a wire stress rewinding device for stranded wires, which can reduce the residual stress of the wire while ensuring the mechanical properties of the wire, and reduce the damage to the coating caused by heat treatment. It can also be used for wire straightening, breakage detection, and other functions, thus solving the problems existing in the background technology.

[0005] The technical solution of this utility model is: A wire stress rewinding device for stranded wire includes a vertical straightening wheel group and a horizontal straightening wheel group fixed on a base. Both the vertical and horizontal straightening wheel groups include four straightening wheels arranged in a cross shape, one stress wheel, one driven wheel, and two adjusting wheels. The stress wheel and driven wheel are arranged opposite each other, as are the two adjusting wheels. The four straightening wheels in the vertical straightening wheel group are mounted on a back plate, and the four straightening wheels in the horizontal straightening wheel group are mounted on a back plate. The stress wheel and the two adjusting wheels in both groups are slidably connected to the back plates via sliders. Each stress wheel in both groups is equipped with an adjustable lever mechanism.

[0006] The adjustable lever mechanism of the stress wheel in the vertical straightening wheel set and the horizontal straightening wheel set includes a connecting rod, a lever, a counterweight plate and weights. One end of the connecting rod is connected to the slider of the stress wheel, and the other end of the connecting rod is connected to one end of the lever. The other end of the lever is provided with a counterweight plate and weights.

[0007] The lever is provided with equidistantly distributed adjustment holes, and the fulcrum can be inserted into any hole of the lever.

[0008] The back plate of the vertical straightening wheel set and the back plate of the horizontal straightening wheel set are respectively provided with limiting grooves that are slidably connected to the sliders of the stress wheel and the two adjusting wheels.

[0009] The back plate of the vertical straightening wheel set and the back plate of the horizontal straightening wheel set are provided with limiting bolts that cooperate with the sliders in the limiting grooves that are slidably connected to the sliders of the two adjusting wheels.

[0010] The vertical straightening wheel set backplate is vertically fixed to the base by a vertical support rod, and the horizontal straightening wheel set backplate is horizontally fixed to the base by a horizontal support rod.

[0011] The beneficial effects of this utility model are: spatial warping correction is achieved through the orthogonal layout of vertical / horizontal dual wheel sets; bending stress is precisely controlled based on a multi-hole lever and weight quantification control system; and four-way independently adjustable straightening wheel sets can reduce residual stress in the wire while ensuring the mechanical properties of the wire and reducing damage to the coating during heat treatment, thus playing the roles of wire straightening and breakage detection. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a front view of the vertical straightening wheel assembly of this utility model; Figure 3 This is a rear view of the vertical straightening wheel assembly of this utility model; Figure 4 This is a cross-sectional view (AA) of the present invention; Figure 5This is a top view of the horizontal straightening wheel assembly of this utility model; Figure 6 This is a BB cross-sectional view of the present invention; Figure 7 This is a three-dimensional view of the adjusting wheel slider of this utility model; Figure 8 This is a three-dimensional view of the stress slider of the vertical straightening wheel assembly of this utility model; Figure 9 This is a three-dimensional view of the stress slider of the horizontal straightening wheel assembly of this utility model; Figure 10 This is a schematic diagram of the new wire winding method; the arrows indicate the direction of wire movement. In the diagram: Vertical straightening wheel assembly 100, horizontal straightening wheel assembly 200, base 300; Vertical straightening wheel assembly back plate 110, vertical straightening wheel assembly stress wheel 120, vertical straightening wheel assembly passive wheel 130, vertical straightening wheel assembly adjusting wheel A140, vertical straightening wheel assembly adjusting wheel B150, vertical straightening wheel assembly stress slider 121, vertical straightening wheel assembly limiting groove 111, vertical straightening wheel assembly connecting rod 170, vertical straightening wheel assembly lever 160, vertical straightening wheel assembly lever support point 115, vertical straightening wheel assembly weight pan 180, vertical straightening wheel assembly weight 190, vertical straightening wheel assembly adjusting wheel slider A141, vertical straightening wheel assembly adjusting wheel slider B151, vertical straightening wheel assembly limiting groove A112, vertical straightening wheel assembly limiting groove B113, vertical straightening wheel assembly limiting bolt A142, vertical straightening wheel assembly limiting bolt B152; Horizontal straightening wheel assembly back plate 210, horizontal straightening wheel assembly stress wheel 220, horizontal straightening wheel assembly passive wheel 230, horizontal straightening wheel assembly adjusting wheel A240, horizontal straightening wheel assembly adjusting wheel B250, horizontal straightening wheel assembly stress slider 221, horizontal straightening wheel assembly limiting groove 211, horizontal straightening wheel assembly connecting rod 270, horizontal straightening wheel assembly lever 260, horizontal straightening wheel assembly lever support point 215, horizontal straightening wheel assembly weight pan 280, horizontal straightening wheel assembly weight 290, horizontal straightening wheel assembly adjusting wheel slider A241, horizontal straightening wheel assembly adjusting wheel slider B251, horizontal straightening wheel assembly limiting groove A212, horizontal straightening wheel assembly limiting groove B213, horizontal straightening wheel assembly limiting bolt A242, horizontal straightening wheel assembly limiting bolt B252; Base plate 310, vertical support rod 320, horizontal support rod 330. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] See attached document Figure 1-10A wire stress rewinding device for stranded wire includes a vertical straightening wheel group 100 and a horizontal straightening wheel group 200 fixed on a base 300. Both the vertical straightening wheel group 100 and the horizontal straightening wheel group 200 include four straightening wheels arranged in a cross shape, one stress wheel, one passive wheel, and two adjusting wheels. The stress wheel and the passive wheel are arranged opposite each other, as are the two adjusting wheels. The four straightening wheels in the vertical straightening wheel group 100 are mounted on a vertical straightening wheel group back plate 110, and the four straightening wheels in the horizontal straightening wheel group 200 are mounted on a horizontal straightening wheel group back plate 210. The stress wheel and the two adjusting wheels in both the vertical straightening wheel group 100 and the horizontal straightening wheel group 200 are slidably connected to the vertical straightening wheel group back plate 110 and the horizontal straightening wheel group back plate 210 respectively via sliders. The stress wheel in both the vertical straightening wheel group 100 and the horizontal straightening wheel group 200 is equipped with an adjustable lever mechanism.

[0015] In this embodiment, refer to the appendix Figure 1-10 The following describes the implementation of this utility model using the stress relief of Φ5mm aluminum-clad Invar wire as an example.

[0016] (1) Overall configuration of the device The device employs a vertical straightening wheel assembly 100 and a horizontal straightening wheel assembly 200 to form a spatial two-dimensional straightening structure. The vertical straightening wheel assembly 100 is fixed to the base 300 by a vertical support rod 320, and the horizontal straightening wheel assembly 200 is fixed to the base 300 by a horizontal support rod 330.

[0017] The vertical straightening wheel assembly 100 comprises four straightening wheels: a stress wheel 120, a passive wheel 130, an adjusting wheel A140, and an adjusting wheel B150. The stress wheel 120 is rotatably connected to the stress slider 121, which is slidably connected to the back plate 110. The adjustable lever mechanism of the stress wheel 120 includes a connecting rod 170, a lever 160, a lever support point 115, a weight pan 180, and weights 190. The lever 160 has equidistantly distributed adjustment holes, and the fulcrum can be inserted into any hole of the lever. Vertical straightening wheel group adjusting wheels A140 and B150 are respectively mounted on vertical straightening wheel group adjusting wheel sliders A141 and B151. Vertical straightening wheel group adjusting wheel sliders A141 and B151 are slidably connected in vertical straightening wheel group limiting grooves A112 and B113, respectively. Vertical straightening wheel group limiting bolts A142 and B152 are respectively provided in vertical straightening wheel group limiting grooves A112 and B113. Wherein: The vertical straightening wheel assembly lever support point 115 is inserted into the second hole on the vertical straightening wheel assembly lever 160, the vertical straightening wheel assembly weight plate 180 is hung on the end hole, the lever arm ratio is 1:10, a 25kg standard weight is loaded, and the vertical straightening wheel assembly stress wheel 120 has a tension of 2500N. The four straightening wheels in the horizontal straightening wheel set 200 are: the horizontal straightening wheel set stress wheel 220, the horizontal straightening wheel set passive wheel 230, the horizontal straightening wheel set adjustment wheel A240, and the horizontal straightening wheel set adjustment wheel B250. Their installation method is the same as that of the four straightening wheels in the vertical straightening wheel set 100, except that the four straightening wheels are on the same horizontal plane.

[0018] (2) Winding path like Figure 10 As shown, the arrow indicates the direction of wire movement. The wire passes through the vertical wheel set 100 and the horizontal wheel set 200 in sequence, forming an Ω-shaped path around the stress wheel 120 / 220.

[0019] (3) Effect verification

[0020] The specific dimensions of one embodiment of this utility model are as follows: Back panel 110 / 210, length 500mm, width 500mm, thickness 20mm The straightening rollers include stress rollers 120 / 220, passive rollers 130 / 230, and adjusting rollers 140 / 240 and 150 / 250. The outer diameter is 100mm, the inner diameter (shaft hole) is 10mm, and the width is 40mm. They are provided with two U-shaped grooves with a groove diameter of 10mm. The slider, including stress slider 121 / 221, adjustment wheel slider 141 / 241 and 151 / 251, has a main body height of 60mm, width of 50mm, and thickness of 25mm; The lever is 160 / 260, 440mm long, 15mm wide, and 5mm thick. It has 22 holes with a diameter of 10mm and a spacing of 20mm. Connecting rod 170 / 270, length 150, width 15, thickness 5, two side holes 10mm; The weight pan is 180 / 280mm long, 200mm thick, and 3mm wide. The hook ring diameter is R10mm, and the base diameter is 100mm and the thickness is 5mm. The weights 190 / 290 are standard weights, with a diameter of 50mm, a height of 50mm, and a weight of 5kg each. There are 5 weights in total, with a total weight of 25kg. Limit bolt 142 / 152, thread diameter 10mm, length 200mm.

Claims

1. A wire stress rewinding device for stranded wires, characterized in that: The system includes a vertical straightening wheel assembly (100) and a horizontal straightening wheel assembly (200) fixed on a base (300). Both the vertical straightening wheel assembly (100) and the horizontal straightening wheel assembly (200) contain four straightening wheels arranged in a cross shape, one stress wheel, one passive wheel, and two adjusting wheels. The stress wheel and the passive wheel are arranged opposite each other, and the two adjusting wheels are arranged opposite each other. The four straightening wheels in the vertical straightening wheel assembly (100) are mounted on the back plate (110) of the vertical straightening wheel assembly, and the four straightening wheels in the horizontal straightening wheel assembly (200) are mounted on the back plate (210) of the horizontal straightening wheel assembly. The stress wheel and the two adjusting wheels in the vertical straightening wheel assembly (100) and the horizontal straightening wheel assembly (200) are respectively slidably connected to the back plate (110) of the vertical straightening wheel assembly and the back plate (210) of the horizontal straightening wheel assembly via sliders. The stress wheel in both the vertical straightening wheel assembly (100) and the horizontal straightening wheel assembly (200) is provided with an adjustable lever mechanism.

2. The wire stress rewinding device for stranded wires according to claim 1, characterized in that: The adjustable lever mechanism of the stress wheel in the vertical straightening wheel set (100) and the horizontal straightening wheel set (200) includes a connecting rod, a lever, a counterweight plate and weights. One end of the connecting rod is connected to the slider of the stress wheel, and the other end of the connecting rod is connected to one end of the lever. The other end of the lever is provided with a counterweight plate and weights.

3. The wire stress rewinding device for stranded wires according to claim 2, characterized in that: The lever is provided with equidistantly distributed adjustment holes, and the fulcrum can be inserted into any hole of the lever.

4. The wire stress rewinding device for stranded wires according to claim 1, characterized in that: The vertical straightening wheel set back plate (110) and the horizontal straightening wheel set back plate (210) are respectively provided with limiting grooves that are slidably connected to the sliders of the stress wheel and the two adjusting wheels.

5. A wire stress rewinding device for stranded wires according to claim 4, characterized in that: The limiting grooves on the vertical straightening wheel set back plate (110) and the horizontal straightening wheel set back plate (210), which are slidably connected to the sliders of the two adjusting wheels, are provided with limiting bolts that cooperate with the sliders.

6. The wire stress rewinding device for stranded wires according to claim 1, characterized in that: The vertical straightening wheel set backplate (110) is vertically fixed to the base (300) by a vertical support rod (320), and the horizontal straightening wheel set backplate (210) is horizontally fixed to the base (300) by a horizontal support rod (330).

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