A uniform stranding device for processing aluminum alloy stranded wire cables

Abstract

The present invention discloses a uniform twisting device for processing aluminum alloy stranded wire cables, comprising two stranding drums, an adjusting component, a limiting plate, a supporting frame, a stranding drum and a mold sleeve, a plurality of supporting frames which are uniformly distributed and used for installing the wire pay-off drums are arranged between the two stranding drums, the adjusting component comprises a first gear, a second gear and an inner gear ring, a plurality of second gears are located between the first gear, the second gear and the inner gear ring and mesh with the first gear and the inner gear ring respectively, the second gear and the supporting frame are fixedly connected and are both rotationally connected to the first stranding drum, a positioning rod for positioning the first gear and the inner gear ring is arranged on the limiting plate, the uniform twisting device for processing aluminum alloy stranded wire cables limits the second gear in the adjusting component by the positioning rod of the limiting plate, adjusts the rotation state of the supporting frame on the first stranding drum, realizes the back-twisting and non-back-twisting twisting processing of the aluminum alloy stranded wire cables, and adapts to the twisting processing requirements of aluminum alloy wire cores with different cross-sections.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing equipment, and in particular to a uniform twisting device for processing aluminum alloy stranded wire cables. Background Art

[0002] Aluminum alloy stranded wire cable is a stranded wire power cable made of aluminum alloy. It combines the excellent conductivity of aluminum alloy with the flexibility of stranded wire structure, becoming an important material in modern power transmission and distribution systems.

[0003] Aluminum alloy stranded cable includes an aluminum alloy wire layer, which is formed by concentrically stranding multiple aluminum alloy wire cores. The cross-sections of the aluminum alloy wire cores used to form the aluminum alloy wire layer include circular, semicircular, fan-shaped and tile-shaped, etc., which are suitable for different cable performance requirements. For aluminum alloy wire cores with circular cross-sections, in order to prevent the torsion of the aluminum alloy wire cores themselves from generating internal stress during stranding, back-twisting stranding is used for stranding processing; for aluminum alloy wire cores with semicircular, fan-shaped and tile-shaped cross-sections, due to the asymmetry of their cross-sections and the particularity of their shapes, non-back-twisting stranding is used to reduce deformation during the stranding process and ensure the roundness of the cable. Therefore, it is generally necessary to configure two stranding production lines to meet the processing requirements of back-twisting stranding and non-back-twisting stranding of aluminum alloy stranded cables. The equipment occupies a large area and is costly. Summary of the invention

[0004] The present invention combines the back-twisting and non-back-twisting functions of the twisting device to propose a uniform twisting device for processing aluminum alloy stranded wire cables. The twisting device is equipped with back-twisting and non-back-twisting functions to meet different twisting processing requirements of aluminum alloy stranded wire cables.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A uniform twisting device for processing aluminum alloy stranded wire cables comprises a first stranding drum, a second stranding drum, a support frame, a pay-off drum, a twisting drum, a mold sleeve and a routing sleeve. The first stranding drum, the second stranding drum, the twisting drum, the mold sleeve and the routing sleeve are coaxially arranged. The support frame is used to install the pay-off drum. The support frame is evenly distributed between the second stranding drum and the first stranding drum. The second stranding drum and the twisting drum are respectively provided with a plurality of evenly distributed routing holes. A plurality of stranded wires come out of the pay-off drum, pass through the routing holes on the second stranding drum and the twisting drum, and are twisted on the outside of the middle wire core in the mold sleeve to realize the twisting processing action.

[0007] The uniform twisting device for processing aluminum alloy stranded wire cables also includes a second twisting drum and an adjustment component for adjusting the twisting mode, the adjustment component includes a first gear, a second gear and an inner gear ring, the first gear and the inner gear ring are respectively coaxially arranged with the routing sleeve, the second gear is located between the first gear, the second gear and the inner gear ring and is respectively meshed with the first gear and the inner gear ring, the first gear is rotationally connected to the routing sleeve, and the second gear is fixedly sleeved on the first rotating shaft; the first twisting drum is located between the second twisting drum and the adjustment component, the support frame is rotationally connected to the first twisting drum and the second twisting drum respectively, and one end of the first rotating shaft is fixedly connected to the support frame to form a rotational connection between the first rotating shaft and the first twisting drum.

[0008] The first winding drum, the second winding drum and the twisting drum rotate synchronously. When the position of the inner gear ring is fixed, the rotation of the first winding drum forms the self-rotation of the second gear, the support frame and the pay-off drum. The self-rotation of the pay-off drum forms the back-twisting action of the twisted wire after pay-off. The twisted wire is twisted in the mold sleeve after back-twisting, forming a back-twisting twisting mode; when the first gear and the inner gear ring are combined with the first winding drum, the adjustment component rotates with the first winding drum as a whole, the pay-off drum on the support frame does not rotate, and the twisted wire is directly twisted in the mold sleeve after pay-off, forming a twisting mode without back-twisting.

[0009] Preferably, a first coupling sleeve and a second coupling sleeve are provided on one side of the first stranding drum relative to the adjustment assembly, the first coupling sleeve and the second coupling sleeve are respectively coaxially arranged with the routing sleeve, the second coupling sleeve is fixedly connected to the first stranding drum, an extension sleeve is fixedly connected to one side of the stranding drum, the extension sleeve is sleeved on the outside of the routing sleeve, one end of the extension sleeve passes through the second stranding drum, the first stranding drum and the second coupling sleeve in sequence and is fixedly connected to the first coupling sleeve. The portion of the stranded wire between the second stranding drum and the stranding drum is pre-twisted by the relative rotation between the first coupling sleeve and the second coupling sleeve, and the pre-twisting direction is opposite to the stranding direction.

[0010] Preferably, the uniform twisting device for processing aluminum alloy stranded wire cables also includes a limit plate and a positioning sleeve coaxially arranged with the routing sleeve, the positioning sleeve is fixedly connected to the base, the limit plate and the base are axially slidably connected to the routing sleeve, the limit plate is located between the positioning sleeve and the adjustment assembly, and the side of the limit plate relative to the adjustment assembly is provided with a first positioning rod for positioning the inner gear ring and a second positioning rod for positioning the first gear, and the end of the first positioning rod is provided with a contact plate for combining with the first stranding drum. When the twisting device is in the back-twist twisting mode, the positioning sleeve contacts the limit plate to form the positioning of the limit plate, the first positioning rod positions the inner gear ring, and the second positioning rod does not position the first gear; when the twisting device is in the non-back-twist twisting mode, the positioning sleeve is separated from the limit plate, the contact plate of the limit plate contacts the first stranding drum to form the combination of the limit plate and the first stranding drum, the first positioning rod positions the inner gear ring, and the second positioning rod positions the first gear.

[0011] Preferably, the first positioning rod is located at the outer ring of the limiting plate, the second positioning rod is located at the inner ring of the limiting plate, a first positioning hole corresponding to the position of the first positioning rod is provided on the inner gear ring, the first positioning rod forms the positioning of the inner gear ring by passing through the first positioning hole of the inner gear ring, a second positioning hole corresponding to the position of the second positioning rod is provided on the first gear, the second positioning rod forms the positioning of the first gear by passing through the second positioning hole of the first gear. The length of the first positioning rod is greater than the length of the second positioning rod, and during the axial movement of the limiting plate, the first positioning rod is always located inside the first positioning hole of the inner gear ring, and the second positioning rod forms the action of entering or leaving the second positioning hole of the first gear.

[0012] Preferably, a first limiting hole is provided on the first combining sleeve, and a third limiting block is provided on the second combining sleeve. The third limiting block corresponds to the position of the first limiting hole, and the third limiting block is used to be inserted into the first limiting hole to form a rotation limit between the first combining sleeve and the second combining sleeve.

[0013] Preferably, the uniform twisting device for processing aluminum alloy stranded wire cables also includes a first push plate and a plurality of guide rods, the first push plate is coaxially arranged with the wiring sleeve, the plurality of guide rods are evenly distributed around the first end of the first push plate to form a guide bracket, and a pressure block is arranged at the second end of the first push plate, and the pressure block is used to push the third limit block to enable the third limit block to leave the first limit hole. The first push plate is axially slidably connected to the wiring sleeve, and the first push plate moves axially to achieve contact or separation between the pressure block and the third limit block.

[0014] Preferably, a second limit block is provided on the guide rod, the second limit block is connected to the guide rod in a radial sliding manner of the wiring sleeve, a second push plate is fixedly provided on the limit plate, and the second push plate is used to push the first end of the second limit block to achieve axial movement of the guide rod and the first push plate in the first direction. A first limit block is also provided on the wiring sleeve, and the first limit block is used to push the second end of the second limit block to achieve the second limit block entering the inside of the guide rod, and release the second limit block from limiting the second push plate to achieve the return action of the guide rod and the first push plate in the second direction.

[0015] Preferably, the first limiting hole is located at the edge of the first combining sleeve to form an open hole, a portion of the third limiting block is located outside the first limiting hole, the pressing block is used to contact the portion of the third limiting block located outside the first limiting hole, and the second combining sleeve is provided with an annular groove for accommodating the pressing block and a guide groove for accommodating the third limiting block, and the annular groove runs through multiple guide grooves.

[0016] Preferably, a rotating disk is provided on the limiting plate, the rotating disk is rotatably connected to the limiting plate, the rotating disk is connected to the base via a functional cylinder, and the functional cylinder is used to drive the limiting plate to move axially.

[0017] Preferably, the inner wall of the positioning sleeve and the outer wall of the limiting plate are both flared and matched, and the limiting plate forms a static friction limit of the limiting plate by contacting with the positioning sleeve.

[0018] The beneficial effects of the present invention are:

[0019] 1. The uniform twisting device for processing aluminum alloy stranded wire cables can realize the back-twisting and back-twisting twisting processing of aluminum alloy stranded wire cables, and is used to meet the twisting processing requirements of aluminum alloy wire cores with different cross-sections. For aluminum alloy wire cores with circular cross-sections, back-twisting twisting is used to prevent the internal stress caused by the torsion of the aluminum alloy wire core itself during twisting; for aluminum alloy wire cores with semicircular, fan-shaped and tile-shaped cross-sections, due to the asymmetry of their cross-sections and the particularity of their shapes, back-twisting twisting is used to reduce deformation during the twisting process and ensure the roundness of the cables. One twisting production line can realize two different types of aluminum alloy wire core twisting processing, has good applicability, and saves equipment space.

[0020] 2. The uniform twisting device for processing aluminum alloy stranded wire cables is used to install the support frame of the pay-off drum and is connected to the second gear of the adjusting assembly. The axial movement of the limit plate can realize the limitation of the second gear in the adjusting assembly, and adjust the rotation state of the support frame on the first stranding drum, so as to realize the back-twisting twisting state or the non-back-twisting twisting state of the twisting device. Moreover, the axial movement of the limit plate can also realize the separation and combination between the first combining sleeve and the second combining sleeve, so as to realize the pre-twisting of the stranded wire, with compact structure and practical functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a uniform stranding device for processing aluminum alloy stranded wire cables;

[0022] Figure 2 This is a schematic diagram of the front structure of the uniform stranding device for processing aluminum alloy stranded wire cables;

[0023] Figure 3 This is a structural schematic diagram of the adjustment components of the uniform twisting device for processing aluminum alloy stranded wire cables;

[0024] Figure 4 This is a schematic diagram of the structure of the cross section at AA of the adjustment component of the uniform stranding device for processing aluminum alloy stranded wire cables;

[0025] Figure 5 This is a schematic diagram of the structure of the cross section at the BB of the adjustment component of the uniform stranding device for processing aluminum alloy stranded wire cables;

[0026] Figure 6 This is a schematic diagram of the radial structure of the second combination sleeve of the uniform stranding device for processing aluminum alloy stranded wire cables;

[0027] Figure 7 This is a schematic diagram of the structure of a uniform twisting device (back-twisting twisting mode) for processing aluminum alloy stranded wire cables;

[0028] Figure 8 This is a structural schematic diagram of a uniform twisting device (twisting-free twisting mode) for processing aluminum alloy stranded wire cables;

[0029] Fig. 9 This is a structural schematic diagram of the first push plate during pre-twist adjustment of the uniform twisting device for processing aluminum alloy stranded wire cables;

[0030] Fig.10 A schematic diagram showing the structure of the cable.

[0031] In the figure: 1, base; 2, first stranding drum; 3, second stranding drum; 4, support frame; 5, pay-off drum; 6, adjustment assembly; 7, stranding drum; 8, mold sleeve; 9, limit plate; 10, positioning sleeve; 11, first bracket; 12, second bracket; 13, third bracket; 14, fourth bracket; 15, drive motor; 16, extension sleeve; 17, first push plate; 18, first limit block; 19, guide rod; 20, routing sleeve; 21, first elastic member; 22, first combination sleeve; 23, second combination sleeve; 24, stranded wire; 25, middle wire core; 26, schematic cable; 27, outer gear ring;

[0032] 31. first wiring hole; 32. first wire pulley assembly; 61. first gear; 62. second gear; 63. inner gear ring; 64. first rotating shaft; 65. first positioning hole; 66. second positioning hole; 91. first positioning rod; 92. second positioning rod; 93. rotating disk; 94. functional cylinder; 95. contact plate; 96. second push plate; 71. second wiring hole; 72. second wire pulley assembly; 151. third gear; 152. second rotating shaft; 171. pressing block; 191. second limiting block; 192. second elastic member; 201. limiting sleeve; 202. supporting sleeve; 221. first limiting hole; 231. third limiting block; 232. third elastic member; 233. annular groove; 234. guide groove; 261. tile-shaped wire core; 262. round wire core. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Reference Figure 1 and Figure 2A uniform twisting device for processing aluminum alloy stranded wire cables, comprising a base 1, a limit plate 9, a first stranding drum 2, a second stranding drum 3, a support frame 4, a pay-off drum 5, a stranding drum 7, a mold sleeve 8, an extension sleeve 16 and a routing sleeve 20, wherein the limit plate 9, the first stranding drum 2, the second stranding drum 3, the stranding drum 7, the mold sleeve 8, the extension sleeve 16 and the routing sleeve 20 are coaxially arranged. The limit plate 9, the first stranding drum 2, the second stranding drum 3 and the stranding drum 7 are sleeved on the outside of the routing sleeve 20 and arranged in sequence in the routing direction. The support frame 4 is installed between the first stranding drum 2 and the second stranding drum 3, and the two ends of the support frame 4 are rotatably connected to the first stranding drum 2 and the second stranding drum 3 respectively. The axial centers of the multiple support frames 4 and the routing sleeve 20 are evenly distributed between the first stranding drum 2 and the second stranding drum 3, and the support frame 4 is used to install the pay-off drum 5, and the pay-off drum 5 is used to release the stranded wire 24. The middle wire core 25 is routed from the inside of the routing sleeve 20, and the multiple twisted wires 24 come out from the pay-off drum 5 through the second twisting drum 3 and the second routing hole 71 on the twisting drum 7, and are twisted on the outside of the middle wire core 25 in the mold sleeve 8 to achieve the twisting action.

[0035] Specifically, the base 1 is provided with a first bracket 11, a second bracket 12, a third bracket 13 and a fourth bracket 14, which are arranged in sequence in the routing direction of the middle wire core 25. Among them, the first bracket 11 is used to install the limit plate 9; the second bracket 12 is used to support the first stranding drum 2, and the first stranding drum 2 is rotatably connected to the second bracket 12; the third bracket 13 is used to support the second stranding drum 3, and the second stranding drum 3 is rotatably connected to the third bracket 13; the fourth bracket 14 is used to support the stranding drum 7, and the stranding drum 7 is rotatably connected to the fourth bracket 14.

[0036] The first capstan 2 and the second capstan 3 are connected via a support frame 4 to form synchronous rotation. The outer portion of the first capstan 2 is fixedly sleeved with an outer gear ring 27, and a driving motor 15 and a third gear 151 are provided on the base 1. The third gear 151 is meshed with the outer gear ring 27, and the third gear 151 is fixedly sleeved on the second rotating shaft 152. The second rotating shaft 152 is fixedly connected to the output shaft of the driving motor 15 through a coupling. The driving motor 15 is used to drive the third gear 151 to rotate, and the third gear 151 drives the outer gear ring 27 to rotate to form synchronous rotation of the first capstan 2 and the second capstan 3.

[0037] An adjustment component 6 is provided between the first stranding drum 2 and the limiting plate 9, and the adjustment component 6 is used to adjust the stranding mode. Figure 1 , Figure 3 and Figure 4The adjustment assembly 6 includes a first gear 61, a plurality of second gears 62 and an inner gear ring 63. The first gear 61 and the second gear 62 are both located inside the inner gear ring 63. The first gear 61 and the inner gear ring 63 are respectively coaxially arranged with the wiring sleeve 20. The plurality of second gears 62 are evenly distributed outside the first gear 61 with the axis of the first gear 61 as the center. The second gear 62 is located between the first gear 61 and the inner gear ring 63 and meshes with the first gear 61 and the inner gear ring 63 respectively. Figure 2 and Figure 3 The first gear 61 is sleeved on the outside of the wiring sleeve 20, and the inner gear ring 63 is rotatably connected to the base 1 through the fifth bracket.

[0038] Furthermore, the second gear 62 is fixedly sleeved on the first rotating shaft 64, and one end of the first rotating shaft 64 passes through the first capstan drum 2 and is fixedly connected to the support frame 4. The number of the support frames 4 corresponds to the number of the first rotating shafts 64, and the first rotating shaft 64 and the support frame 4 are both rotatably connected to the first capstan drum 2.

[0039] refer to Figure 2 and Figure 3 A rotating disk 93 is provided on one side of the above-mentioned limit plate 9, and the rotating disk 93 is rotatably connected to the limit plate 9. The rotating disk 93 is connected to the first bracket 11 through a functional cylinder 94, and the first bracket 11 is fixedly connected to the base 1. The axis of the functional cylinder 94 is horizontally arranged, and the functional cylinder 94 is used to drive the limit plate 9 to move axially.

[0040] A positioning sleeve 10 is also fixedly arranged on the base 1, and the positioning sleeve 10 is coaxially arranged with the wiring sleeve 20. The positioning sleeve 10 is located between the first bracket 11 and the limiting plate 9. The inner wall of the positioning sleeve 10 and the outer wall of the limiting plate 9 are both flared and matched. The limiting plate 9 contacts or separates from the positioning sleeve 10 through axial movement. When the limiting plate 9 contacts the positioning sleeve 10, the limiting plate 9 is limited, and the limiting plate 9 does not rotate relative to the rotating disk 93.

[0041] Furthermore, two groups of positioning rods are provided on the other side of the limiting plate 9, including a first rod group located outside and a second rod group located inside. The first rod group is composed of a plurality of uniformly distributed first positioning rods 91, and the second rod group is composed of a plurality of uniformly distributed second positioning rods 92.

[0042] Further, the inner gear ring 63 is provided with a first positioning hole 65, and the first gear 61 is provided with a second positioning hole 66. The position of the first positioning rod 91 corresponds to the position of the first positioning hole 65 of the inner gear ring 63, and the first positioning rod 91 passes through the first positioning hole 65 of the inner gear ring 63 to form the positioning of the inner gear ring 63. A contact plate 95 is provided at the end of the first positioning rod 91, and the contact plate 95 is used to contact and combine with the first capstan 2 to form the synchronous rotation of the limit plate 9 and the first capstan 2. The position of the second positioning rod 92 corresponds to the position of the second positioning hole 66 of the first gear 61, and the second positioning rod 92 can pass through the second positioning hole 66 of the first gear 61 to form the positioning of the first gear 61. The limit plate 9 moves axially to move closer to or away from the adjustment component 6. During the axial movement of the limit plate 9, the first positioning rod 91 is always located inside the first positioning hole 65, and the second positioning rod 92 moves into or out of the second positioning hole 66.

[0043] refer to Figure 7 When the limit plate 9 is located at the first limit position, the limit plate 9 is in contact with the positioning sleeve 10, the first positioning rod 91 is located in the first positioning hole 65 of the inner gear ring 63, the contact plate 95 at the end of the first positioning rod 91 does not contact the first capstan 2, the second positioning rod 92 is not located in the second positioning hole 66, and the inner gear ring 63 in the adjustment assembly 6 is positioned. When the first capstan 2 rotates, the second gear 62 moves synchronously with the first capstan 2, and the second gear 62 can generate self-rotation, forming the rotation of the first rotating shaft 64, the support frame 4 and the pay-off drum 5, thereby forming the back-twisting action of the pay-off drum 5.

[0044] refer to Figure 8 When the limit plate 9 is located at the second extreme position, the limit plate 9 and the positioning sleeve 10 are in a separated state, the limit plate 9 can rotate relative to the rotating disk 93, the first positioning rod 91 is located in the first positioning hole 65 of the inner gear ring 63, the contact plate 95 at the end of the first positioning rod 91 is in contact with the first capstan 2, the second positioning rod 92 is located in the second positioning hole 66, the inner gear ring 63 and the first gear 61 in the adjustment component 6 are both positioned and combined with the first capstan 2. When the first capstan 2 rotates, the second gear 62 cannot rotate or move relative to the inner gear ring 63, the entire adjustment component 6 and the limit plate 9 rotate synchronously with the first capstan 2, the first rotating shaft 64, the support frame 4 and the pay-off drum 5 do not rotate, and the pay-off drum 5 can only produce a pay-off action.

[0045] refer to Figure 2The second stranding drum 3 is provided with a plurality of first wiring holes 31, the positions of the first wiring holes 31 correspond to the positions of the support frame 4, and the first wiring holes 31 are used for routing the stranded wires 24 coming out of the pay-off drum 5. First wire pulley groups 32 are respectively provided on both sides of the first wiring holes 31, and the first wire pulley group 32 is composed of wire pulleys distributed up and down, and the stranded wire 24 can pass between the two wire pulleys. The first wire pulley group 32 is used to guide the stranded wire 24 so that the stranded wire 24 can pass through the first wiring holes 31 smoothly.

[0046] Similarly, the stranding disk 7 is provided with a plurality of second wiring holes 71, the positions of the second wiring holes 71 correspond to the positions of the first wiring holes 31, and the second wiring holes 71 are used for routing the stranded wires 24 coming out of the second wiring holes 71. Second wire pulley assemblies 72 are respectively provided on both sides of the second wiring holes 71, and the second wire pulley assemblies 72 have the same structure as the first wire pulley assemblies 32, and the second wire pulley assemblies 72 are used for guiding the stranded wires 24 so that the stranded wires 24 can smoothly pass through the second wiring holes 71.

[0047] For further reference, Figure 1 and Figure 3 The first winding drum 2 is provided with a first combination sleeve 22 and a second combination sleeve 23 on one side relative to the adjustment assembly 6, and the first combination sleeve 22 and the second combination sleeve 23 are respectively coaxially arranged with the routing sleeve 20. Among them, the second combination sleeve 23 is fixedly connected to the first winding drum 2; one side of the twisting drum 7 is fixedly connected with an extension sleeve 16, which is sleeved on the outside of the routing sleeve 20, and one end of the extension sleeve 16 passes through the second winding drum 3, the first winding drum 2, and the second combination sleeve 23 in sequence and is fixedly connected to the first combination sleeve 22.

[0048] The first combination sleeve 22 and the second combination sleeve 23 are arranged in contact with each other. Figure 5 The first coupling sleeve 22 is provided with a first limiting hole 221, referring to Figure 6 A third limit block 231 is provided on the second combining sleeve 23, and the position of the third limit block 231 corresponds to the position of the first limit hole 221. The third limit block 231 is used to be inserted into the first limit hole 221 to form a rotation limit between the first combining sleeve 22 and the second combining sleeve 23, thereby realizing the combination between the first combining sleeve 22 and the second combining sleeve 23. At this time, the second winding drum 3 and the winding drum 7 can rotate synchronously.

[0049] refer to Figure 1 , Figure 3 and Fig. 9The uniform twisting device for processing aluminum alloy stranded wire cables also includes a first push plate 17, which is coaxially arranged with the routing sleeve 20, and is located between the first coupling sleeve 22 and the adjustment assembly 6. A plurality of guide rods 19 are connected to the first end of the first push plate 17, and the plurality of guide rods 19 are evenly distributed around the first end of the first push plate 17 to form a guide bracket. A limit sleeve 201 and a support sleeve 202 are fixedly sleeved on the routing sleeve 20, and the first gear 61 in the adjustment assembly 6 is fixedly sleeved on the support sleeve 202. The guide bracket and the support sleeve 202 formed by the first push plate 17 and the guide rod 19 are respectively located between the limit sleeve 201 and the first coupling sleeve 22, and the plurality of guide rods 19 penetrate the support sleeve 202 and are axially slidably connected with the support sleeve 202. A first elastic member 21 is provided between the first push plate 17 and the first coupling sleeve 22 . When the limiting plate 9 is located at the first extreme position, the stretching tendency of the first elastic member 21 causes the guide rod 19 to contact the limiting sleeve 201 . The limiting sleeve 201 is used to limit the guide rod 19 .

[0050] The outer surface of the guide rod 19 is provided with a groove, and a second limit block 191 and a second elastic member 192 are provided inside the groove. The second limit block 191 is connected to the groove of the guide rod 19 through the second elastic member 192, and the second limit block 191 is connected to the guide rod 19 in a radial sliding connection with the wiring sleeve 20. A second push plate 96 is fixedly provided on the limit plate 9, and the second push plate 96 is used to push the first end of the second limit block 191 to realize the axial movement of the guide rod 19 and the first push plate 17 in the first direction.

[0051] refer to Figure 6 and Fig. 9 The second coupling sleeve 23 is provided with a guide groove 234 for accommodating the third limiting block 231, and a third elastic member 232 is provided inside the guide groove 234. The third limiting block 231 is connected to the guide groove 234 of the second coupling sleeve 23 through the third elastic member 232. A pressing block 171 is provided at the second end of the first push plate 17, and the position of the pressing block 171 corresponds to the position of the third limiting block 231.

[0052] refer to Fig. 9 When the first push plate 17 moves in the first direction, the pressing block 171 can push the third limit block 231 to move, the third elastic member 232 is compressed, and the third limit block 231 leaves the first limit hole 221 and completely enters the guide groove 234, thereby releasing the connection between the first coupling sleeve 22 and the second coupling sleeve 23. At this time, the first coupling sleeve 22 can rotate relative to the second coupling sleeve 23, that is, the second stranding disc 3 can rotate relative to the stranding disc 7, forming a pre-twist of the stranded wire 24 between the second stranding disc 3 and the stranding disc 7. The twist is opposite to the twisting direction of the stranded wire 24, thereby realizing the reverse pre-twist of the stranded wire 24, and then balancing the torsional stress during the twisting without back-twist.

[0053] For further reference, Figure 5 and Figure 6 The first limiting hole 221 is located at the edge of the first coupling sleeve 22 to form an open hole, a portion of the third limiting block 231 is located inside the first limiting hole 221, and another portion of the third limiting block 231 is located outside the first limiting hole 221. Fig. 9 The pressing block 171 contacts and applies pressure to the portion of the third limiting block 231 outside the first limiting hole 221. The second coupling sleeve 23 is provided with an annular groove 233 for accommodating the pressing block 171. The annular groove 233 penetrates a plurality of guide grooves 234. When the second coupling sleeve 23 rotates relative to the first coupling sleeve 22, the pressing block 171 can move relatively inside the annular groove 233.

[0054] For further reference, Fig. 9 , a first limit block 18 is provided on the side of the support sleeve 202 on the wiring sleeve 20 close to the second limit block 191, and the first limit block 18 is fixedly connected to the support sleeve 202. The side of the second limit block 191 close to the first limit block 18 is the second end, and the second end of the second limit block 191 is an inclined surface. When the guide rod 19 moves in the first direction, after the second limit block 191 contacts the first limit block 18, the first limit block 18 can push the second limit block 191 into the groove of the guide rod 19, and the second limit block 191 no longer limits the second push plate 96. The first elastic member 21 stretches to push the guide rod 19 and the first push plate 17 to move in the second direction, so as to realize the return of the guide rod 19 and the first push plate 17. When the guide rod 19 and the first push plate 17 return in the second direction, the second limit block 191 will pass through the inner hole of the second push plate 96 , and the second limit block 191 can move to the side of the second push plate 96 away from the support sleeve 202 .

[0055] The uniform stranding device for processing aluminum alloy stranded wire and cable includes the following working modes:

[0056] (a) Back-twisting twisting mode.

[0057] Preparation: Reference Figure 7, the limit plate 9 is located at the first extreme position, the limit plate 9 is in contact with the positioning sleeve 10, the first positioning rod 91 is located in the first positioning hole 65 of the inner gear ring 63, the contact plate 95 at the end of the first positioning rod 91 does not contact the first winding drum 2, the second positioning rod 92 is not located in the second positioning hole 66, and the inner gear ring 63 in the adjustment component 6 is positioned; the third limit block 231 is located inside the first limit hole 221, and the first combination sleeve 22 and the second combination sleeve 23 are in a combined state. At the same time, after the middle wire core 25 is released, it extends from one end of the routing sleeve 20 to the other end, passes through the mold sleeve 8, and is pulled and reeled by the cable reeling device; the stranded wire 24 is released from the pay-off drum 5 on the first winding drum 2, and passes through the first routing hole 31 on the second winding drum 3, the second routing hole 71 on the winding drum 7, and the mold sleeve 8 in turn, and is pulled and reeled by the cable reeling device, and multiple stranded wires 24 need to be evenly distributed on the outside of the routing sleeve 20.

[0058] Detwisting and twisting work: the driving motor 15 drives the third gear 151 to rotate, and the third gear 151 drives the outer gear ring 27 to rotate to form the rotation of the first winding drum 2, and the winding drum 7 and the second winding drum 3 rotate synchronously with the first winding drum 2. The second gear 62 in the adjustment component 6 moves synchronously with the first winding drum 2, and the second gear 62 moves along the inner ring of the inner gear ring 63 and rotates on its own, forming a rotation action of the first rotating shaft 64, the support frame 4 and the pay-off drum 5, and then forming a detwisting action of the stranded wire 24 released from the pay-off drum 5. The detwisted stranded wire 24 is rotated by the stranded drum 7 to complete the winding of the stranded wire 24 on the outside of the middle wire core 25, and multiple stranded wires 24 are twisted on the outside of the middle wire core 25 at the mold sleeve 8.

[0059] (II) Pre-twisted stranding mode

[0060] Preparation work: After the middle wire core 25 is released, it extends from one end of the routing sleeve 20 to the other end, passes through the mold sleeve 8 and is pulled and wound by the cable winding device; the twisted wire 24 is released from the pay-off drum 5 on the first twisting drum 2, and passes through the first routing hole 31 on the second twisting drum 3, the second routing hole 71 on the twisting drum 7 and the mold sleeve 8 in turn and is pulled and wound by the cable winding device. Multiple twisted wires 24 need to be evenly distributed on the outside of the routing sleeve 20.

[0061] The function cylinder 94 drives the limit plate 9 to move axially, the second push plate 96 pushes the second limit block 191 to realize the axial movement of the guide rod 19 and the first push plate 17 in the first direction, and the pressure block 171 pushes the third limit block 231 to move. When the second limit block 191 is located at the first position, the second limit block 191 is not in contact with the first limit block 18, the third elastic member 232 is compressed, and the third limit block 231 leaves the first limit hole 221 of the first coupling sleeve 22 and completely enters the guide groove 234. The first coupling sleeve 22 and the second coupling sleeve 23 are released. At this time, the driving motor 15 drives the third gear 151 to rotate. The third gear 151 drives the outer gear ring 27, the first capstan drum 2 and the second capstan drum 3 to rotate. The first capstan drum 2 rotates a certain angle relative to the stranding drum 7. At the same time, the first coupling sleeve 22 and the second coupling sleeve 23 also rotate a certain angle. The stranded wire 24 is deflected between the second capstan drum 3 and the stranding drum 7. The deflection direction is opposite to the stranding direction of the stranded wire 24.

[0062] After the first capstan drum 2 and the second capstan drum 3 have finished rotating, the function cylinder 94 continues to drive the limit plate 9 to move axially, and the second push plate 96 continues to push the second limit block 191, the guide rod 19 and the first push plate 17 to move axially in the first direction until the limit plate 9 is at the second limit position. At this time, the second limit block 191 is at the second position, and the second limit block 191 contacts the first limit block 18. The first limit block 18 can push the second limit block 191 into the groove of the guide rod 19, and the second limit block 191 The second push plate 96 is no longer limited, and the first elastic member 21 is extended to push the guide rod 19 and the first push plate 17 to move in the second direction, so as to realize the return of the guide rod 19 and the first push plate 17. During the return of the guide rod 19 and the first push plate 17 along the second direction, the second limit block 191 will pass through the inner hole of the second push plate 96, and the third elastic member 232 is extended, so that the third limit block 231 enters the first limit hole 221 of the first coupling sleeve 22, so as to realize the re-combination between the first coupling sleeve 22 and the second coupling sleeve 23;

[0063] refer to Figure 8 When the limit plate 9 is located at the second extreme position, the limit plate 9 and the positioning sleeve 10 are in a separated state, the limit plate 9 can rotate relative to the rotating disk 93, the first positioning rod 91 is located in the first positioning hole 65 of the inner gear ring 63, the contact plate 95 at the end of the first positioning rod 91 is in contact and combined with the first capstan drum 2, the second positioning rod 92 is located in the second positioning hole 66, the inner gear ring 63 and the first gear 61 in the adjustment assembly 6 are both positioned and synchronously combined with the first capstan drum 2.

[0064] Pre-twisting and twisting work: the driving motor 15 drives the third gear 151 to rotate, and the third gear 151 drives the outer gear ring 27 to rotate to form the rotation of the first winding drum 2. The adjusting component 6 as a whole, the winding drum 7 and the second winding drum 3 rotate synchronously with the first winding drum 2. The second gear 62 in the adjusting component 6 cannot rotate or move relative to the inner gear ring 63, and the support frame 4 and the pay-off drum 5 do not rotate relative to the first winding drum 2. There is no back-twisting action after the stranded wire 24 is released from the pay-off drum 5. The stranded wire 24 generates reverse pre-twisting between the second winding drum 3 and the stranding drum 7. The reverse pre-twisting is used to balance the torsional stress during twisting without back-twisting. The pre-twisted stranded wire 24 is rotated by the stranding drum 7 to complete the winding of the stranded wire 24 on the outside of the middle core 25. At the mold sleeve 8, multiple stranded wires 24 are twisted on the outside of the middle core 25.

[0065] refer to Fig.10 , the schematic cable 26 is an aluminum alloy stranded wire cable in the prior art, which includes three aluminum alloy wire layers, the outermost aluminum alloy wire layer is twisted by a tile-shaped wire core 261 with a tile-shaped cross section, and the inner aluminum alloy wire layer is twisted by a round wire core 262 with a round cross section. When the aluminum alloy wire layers of the schematic cable 26 are twisted using the twisting device, the outermost aluminum alloy wire layer needs to be twisted in a non-backtwisting twisting processing mode, and the inner aluminum alloy wire layer needs to be twisted in a backtwisting twisting processing mode.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A uniform twisting device for processing aluminum alloy stranded wire cables, comprising a first twisting drum, a second twisting drum, a support frame, a pay-off drum, a twisting drum, a mold sleeve and a routing sleeve, wherein the first twisting drum, the second twisting drum, the twisting drum, the mold sleeve and the routing sleeve are coaxially arranged, the support frame is used to install the pay-off drum, the support frame is evenly distributed between the second twisting drum and the first twisting drum, the second twisting drum and the twisting drum are respectively provided with a plurality of evenly distributed routing holes, a plurality of twisted wires come out of the pay-off drum through the routing holes on the second twisting drum and the twisting drum, and are twisted on the outside of the middle wire core in the mold sleeve to realize the twisting processing action, characterized in that, It also includes a second capstan and an adjustment component for adjusting the twisting mode, the adjustment component includes a first gear, a second gear and an inner gear ring, the first gear and the inner gear ring are respectively coaxially arranged with the routing sleeve, the second gear is located between the first gear, the second gear and the inner gear ring and meshes with the first gear and the inner gear ring respectively, the first gear is rotationally connected to the routing sleeve, and the second gear is fixedly sleeved on the first shaft; the first capstan is located between the second capstan and the adjustment component, the support frame is rotationally connected to the first capstan and the second capstan respectively, and one end of the first shaft is fixedly connected to the support frame to form a rotational connection between the first shaft and the first capstan; The first capstan, the second capstan and the twisting disc rotate synchronously. When the position of the inner gear ring is fixed, the rotation of the first capstan forms the self-rotation of the second gear, the support frame and the pay-off disc. The self-rotation of the pay-off disc forms the detwisting action of the twisted wire after pay-off. After detwisting, the twisted wire is twisted with the mold sleeve to form a detwisting twisting mode. When the first gear and the inner gear ring are combined with the first capstan, the adjustment component rotates with the first capstan as a whole, and the pay-off disc on the support frame does not rotate. After pay-off, the twisted wire is directly twisted with the mold sleeve to form a non-detwisting twisting mode.

2. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 1, characterized in that: A first coupling sleeve and a second coupling sleeve are provided on one side of the first stranding drum relative to the adjustment assembly, the first coupling sleeve and the second coupling sleeve are respectively coaxially arranged with the routing sleeve, the second coupling sleeve is fixedly connected to the first stranding drum, an extension sleeve is fixedly connected to one side of the stranding drum, the extension sleeve is sleeved on the outside of the routing sleeve, one end of the extension sleeve passes through the second stranding drum, the first stranding drum and the second coupling sleeve in sequence and is fixedly connected to the first coupling sleeve; The portion of the stranded wire between the second stranding drum and the stranding drum is pre-twisted by relative rotation between the first coupling sleeve and the second coupling sleeve, and the pre-twisting direction is opposite to the stranding direction.

3. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 2, characterized in that: It also includes a limit plate and a positioning sleeve coaxially arranged with the routing sleeve, the positioning sleeve is fixedly connected to the base, the limit plate and the base are axially slidably connected to the routing sleeve, the limit plate is located between the positioning sleeve and the adjustment component, and a first positioning rod for positioning the inner gear ring and a second positioning rod for positioning the first gear are arranged on one side of the limit plate relative to the adjustment component, and a contact plate for combining with the first capstan is arranged at the end of the first positioning rod; When the twisting device is in the back-twist twisting mode, the positioning sleeve contacts the limit plate to form the positioning of the limit plate, the first positioning rod positions the inner gear ring, and the second positioning rod does not position the first gear; when the twisting device is in the non-back-twist twisting mode, the positioning sleeve is separated from the limit plate, the contact plate of the limit plate contacts the first capstan drum to form the combination of the limit plate and the first capstan drum, the first positioning rod positions the inner gear ring, and the second positioning rod positions the first gear.

4. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 3, characterized in that: The first positioning rod is located at the outer ring of the limiting plate, the second positioning rod is located at the inner ring of the limiting plate, the inner gear ring is provided with a first positioning hole corresponding to the position of the first positioning rod, the first positioning rod forms the positioning of the inner gear ring by passing through the first positioning hole of the inner gear ring, the first gear is provided with a second positioning hole corresponding to the position of the second positioning rod, and the second positioning rod forms the positioning of the first gear by passing through the second positioning hole of the first gear; The length of the first positioning rod is greater than that of the second positioning rod. During the axial movement of the limiting plate, the first positioning rod is always located inside the first positioning hole of the inner gear ring, and the second positioning rod enters or leaves the second positioning hole of the first gear.

5. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 4, characterized in that: The first coupling sleeve is provided with a first limiting hole, and the second coupling sleeve is provided with a third limiting block. The third limiting block corresponds to the position of the first limiting hole, and is used to be inserted into the first limiting hole to form a rotation limit between the first coupling sleeve and the second coupling sleeve.

6. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 5, characterized in that: It also includes a first push plate and a plurality of guide rods, wherein the first push plate is coaxially arranged with the wiring sleeve, the plurality of guide rods are evenly distributed around the first end of the first push plate to form a guide bracket, and a pressing block is arranged at the second end of the first push plate, wherein the pressing block is used to push the third limit block to enable the third limit block to leave the first limit hole; The first push plate is axially slidably connected to the wiring sleeve, and the first push plate realizes contact or separation between the pressing block and the third limiting block by axial movement.

7. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 6, characterized in that: The guide rod is provided with a second limit block, the second limit block is slidably connected with the guide rod in the radial direction of the wiring sleeve, and the limit plate is fixedly provided with a second push plate, the second push plate is used to push the first end of the second limit block to realize the axial movement of the guide rod and the first push plate in the first direction; A first limit block is also provided on the wiring sleeve, and the first limit block is used to push the second end of the second limit block to enable the second limit block to enter the inside of the guide rod, and release the limit of the second limit block on the second push plate to realize the return action of the guide rod and the first push plate in the second direction.

8. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 7, characterized in that: The first limiting hole is located at the edge of the first coupling sleeve to form an open hole, a portion of the third limiting block is located outside the first limiting hole, the pressing block is used to contact the portion of the third limiting block located outside the first limiting hole, and the second coupling sleeve is provided with an annular groove for accommodating the pressing block and a guide groove for accommodating the third limiting block, and the annular groove runs through multiple guide grooves.

9. The uniform stranding device for processing aluminum alloy stranded wire cables according to any one of claims 3 to 8, characterized in that: The limit plate is provided with a rotating disk, the rotating disk is rotatably connected to the limit plate, the rotating disk is connected to the base via a functional cylinder, and the functional cylinder is used to drive the limit plate to move in the axial direction.

10. The uniform stranding device for processing aluminum alloy stranded wire cables according to claim 9, characterized in that: The inner wall of the positioning sleeve and the outer wall of the limiting plate are both flared and matched, and the limiting plate forms a static friction limit of the limiting plate by contacting with the positioning sleeve.

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