A multi-strand wire core twisting device

Abstract

The present invention relates to the technical field of cable processing, and specifically to a multi-strand electric wire core twisting device. The present invention comprises a base and a bracket, a plurality of L-shaped columns uniformly distributed in an annular shape are fixedly connected between the base and the bracket, a U-shaped frame is fixedly provided on the top of the bracket, and a plurality of wire holes uniformly distributed in an annular shape are penetrated through the top of the bracket, a wire-releasing mechanism is installed on the top of the base, a core wire surface treatment mechanism for pre-treating the surfaces of the multi-strand core wires to be twisted is provided between the base and the bracket, a forward and reverse double-stage twisting mechanism for twisting the multi-strand core wires is installed in the middle of the inner side of the U-shaped frame, a wire outlet hole is penetrated through the top of the U-shaped frame, and a lead-out mechanism for guiding the discharge of the twisted wire core is installed on the inner top of the U-shaped frame. The present invention can realize the forward and reverse double-stage twisting of the multi-strand core wires, and respectively cover the outer sides of the wire cores that have completed the inner twisting and the outer twisting with shielding tapes, is easy to use, and occupies a small area.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing, in particular to a multi-strand electric wire core twisting device. Background Art

[0002] Wires are conductors that transmit electricity or information from one place to another. They are usually made up of several or several groups of wire cores (at least two wires in each group). The wire cores are usually twisted by passing multiple groups of single-strand wires through a single set of wire drums and then feeding them into a twisting machine for twisting. Compared with single-strand wires of the same cross-sectional area, the wire cores made by twisting wires have higher mechanical properties and flexibility.

[0003] The prior art discloses a Chinese patent with publication number CN 117612799 B: a multi-core cable twisting device and twisting method, and discloses a twisting device and a tightening device. After twisting multiple core wires with the help of a twisting drum, the cable is further tightened by the tightening device to improve the twisting quality of the cable.

[0004] However, the above-mentioned prior art still has certain defects, that is, during use, it only realizes unidirectional and single-layer twisting of multi-core cables. Although the twisted cables are further tightened by using a tightening assembly, the overall strength, flexibility and stability of the twisted cables are still insufficient. In addition, the twisting equipment adopts a horizontal layout, occupies a large area, and is inconvenient for operation and maintenance. Summary of the invention

[0005] The object of the present invention is to provide a multi-strand electric wire core twisting device to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A multi-strand wire core twisting device comprises a base, a bracket is provided on the top of the base, a plurality of L-shaped columns evenly distributed in a ring shape are fixedly connected between the base and the bracket, a U-shaped frame is fixedly provided on the top of the bracket, and a plurality of wire holes evenly distributed in a ring shape are opened through the top of the bracket, and a wire release mechanism is installed at the position of each wire hole one on the top of the base;

[0008] A core wire surface treatment mechanism for pre-treating the surface of the twisted multiple core wires is provided between the base and the bracket, and the core wire surface treatment mechanism is composed of a treatment cylinder corresponding to each pay-off mechanism and a driving part for synchronously driving the multiple treatment cylinders to rotate;

[0009] A forward and reverse double-stage twisting mechanism for twisting multiple strands of core wires is installed in the middle of the inner side of the U-shaped frame, and the forward and reverse double-stage twisting mechanism is composed of a power component and a guide twisting component;

[0010] A wire outlet hole is formed through the top of the U-shaped frame, and a lead-out mechanism for guiding the stranded wire core to be discharged from the wire outlet hole is installed at the position of the inner top of the U-shaped frame corresponding to the wire outlet hole.

[0011] In a preferred embodiment, the wire-releasing mechanism includes two side frames fixed on the top of the base, the tops of the two side frames are provided with folding grooves, a core wire winding roller is arranged between the two folding grooves, and a conductor frame is fixedly connected between the top surfaces of the two side frames.

[0012] In a preferred embodiment, the treatment cylinder comprises an outer cylinder and an inner cylinder, an annular groove is provided at the inner top of the outer cylinder, an inclined guide ring is fixedly provided at the bottom of the inner cylinder, a cleaning ring is fixedly provided at the inner top of the inclined guide ring, one end of the inner cylinder connected to the inclined guide ring is movably inserted in the annular groove, an oil groove is provided at the bottom of the outer cylinder, an oil filling groove connected to the oil groove is provided at the top of the outer cylinder, a plurality of leakage grooves connected to the oil groove are provided at the connection between the inner cylinder and the inclined guide ring, and a viewing window is provided on the outer side of the outer cylinder;

[0013] A strip groove is provided at the top inner side of the annular groove, a strip block movably inserted in the corresponding strip groove is fixedly provided on the outer side of the inner cylinder, a through hole connected to the inner cavity of the inner cylinder is provided on the outer side of the strip block, an atomizing nozzle is fixedly installed on one end of the through hole close to the inner cavity of the inner cylinder, an oil supply groove connected to the through hole is provided at the top inner side of the oil groove, and an oil pump connected to the oil supply groove is fixedly provided at the bottom inner side of the oil groove.

[0014] In a preferred embodiment, the driving part includes a gear 1 rotatably mounted on the bottom of the bracket and a plurality of brackets fixedly mounted on the bottom of the bracket, the bracket being composed of a ring bar and an L-shaped rod fixedly connecting the ring bar and the bracket, the outer cylinder being movably inserted into the ring bar, and a fixed sleeve on the outer side of the outer cylinder being provided with two limit rings 1 respectively fitting with the upper end face and the lower end face of the ring bar, a fixed sleeve on the outer side of the outer cylinder being provided with a gear ring meshing with the gear 1, and a motor 4 for driving the gear 1 to rotate is fixedly mounted on the top of the bracket.

[0015] In a preferred embodiment, a stopper assembly is installed between the top surfaces of the inner cylinder and the outer cylinder to prevent the inner cylinder from loosening, the stopper assembly includes a vertical plate and a limit frame fixed to the top of the outer cylinder, an L-shaped seat is movably inserted inside the limit frame, and the stopper assembly also includes a card frame fixed to the top of the inner cylinder and corresponding to the limit frame;

[0016] A plug hole is provided on one side of the L-shaped seat, a plug column fixedly connected to the corresponding vertical plate is movably inserted inside the plug hole, and a spring fixedly connecting the L-shaped seat and the vertical plate is sleeved on the outer side of the plug column.

[0017] In a preferred embodiment, the guide twisting assembly includes two horizontal plates 2 fixed to the inner side of the U-shaped frame, a wire reel is fixedly connected between the opposite ends of the two horizontal plates 2, and a plurality of wire holes 2 evenly distributed in an annular shape are opened through the top of the wire reel;

[0018] The top and bottom of the wire drum are respectively provided with an outer capstan and an inner capstan, and the outer top and bottom of the outer capstan and the inner capstan are provided with T-shaped ring grooves, and the positions corresponding to the T-shaped ring grooves on both sides of the U-shaped frame are fixedly connected with a transverse plate one, and a T-shaped ring block slidably connected to the corresponding T-shaped ring groove is fixedly provided at one end of the transverse plate one;

[0019] The axis lines of the outer capstan and the inner capstan are respectively penetrated by a plurality of outer twist wire grooves and inner twist wire grooves evenly distributed in an annular shape, and the outer twist wire grooves and the inner twist wire grooves are configured as spiral grooves with opposite spiral directions, and core grooves are formed between the plurality of outer twist wire grooves for the wire cores to pass through after the inner twisting is completed.

[0020] In a preferred embodiment, the power assembly includes two horizontal plates three fixed on the inner side of the U-shaped frame, the two horizontal plates three are respectively located at the top and bottom of the horizontal plate two, and a rotating shaft is movably penetrated through the middle of the two horizontal plates three, and two limit rings two are respectively fitted with the upper and lower end surfaces of the corresponding horizontal plates three on the outer side of the rotating shaft, and the two rotating shafts are respectively fixedly connected with a transmission wheel and a bevel gear one at the opposite ends and the opposite ends;

[0021] A through groove is provided in the middle of the horizontal plate 2 corresponding to the horizontal plate 3, and a bevel gear 2 meshing with the two bevel gears 1 is rotatably installed at the position corresponding to the through groove on the inner side of the U-shaped frame, and a motor 1 for driving the bevel gear 2 to rotate is fixedly installed on the outer side of the U-shaped frame. A transmission ring corresponding to the corresponding transmission wheel is fixedly sleeved on the outer side of the outer capstan and the inner capstan, and the corresponding transmission wheel and the transmission ring are connected by belt transmission.

[0022] In a preferred embodiment, the lead-out mechanism includes two L-shaped brackets fixed on the inner top of the U-shaped frame, the inner bottom ends of the two L-shaped brackets are each provided with an arc groove, a disc is rotatably installed between the two arc grooves, the top of the disc is provided with a square groove 2 and a square groove 1 which is centrally symmetrically arranged about the vertical center axis of the square groove 2, two wire conveying rollers are rotatably installed at the positions of the two square grooves 1 inside the square groove 2, and motors 3 for driving the corresponding wire conveying rollers to rotate are fixedly installed inside the two square grooves 1.

[0023] In a preferred embodiment, the lead-out mechanism also includes a through groove opened in the middle of the inner side of the two L-shaped brackets and connected to the corresponding arc groove, and a plurality of tooth grooves evenly distributed in a ring shape are opened on the top of the disc. The two through grooves are located on an annular track surrounded by the plurality of tooth grooves. Gears 2 meshing with the tooth grooves are rotatably installed in the middle of the inner side of the two L-shaped brackets, and motors 2 driving the corresponding gears 2 to rotate are fixedly installed in the middle of the outer sides of the two L-shaped brackets.

[0024] In a preferred embodiment, a covering mechanism is provided at the top of the horizontal plate corresponding to the outlet end of the outer capstan and the inner capstan, and the covering mechanism includes a straight plate fixed on the inner side of the U-shaped frame and a vertical frame and a convex column fixed on the top of the corresponding horizontal plate, and a guide roller is rotatably installed on the inner side of the vertical frame;

[0025] A cylinder is fixedly installed at the position of the convex column on the top of the straight plate, and the telescopic end of the cylinder movably penetrates one end of the straight plate and is fixedly connected to a lifting frame. A shielding tape roller is movably sleeved on the outer side of the convex column, and a cross groove is provided on the top of the shielding tape roller, and a cross chuck is movably inserted in the cross groove. A motor 5 fixedly connected to the cross chuck is installed in the lifting frame, and plug plates movably penetrating the straight plate are fixedly connected on both sides of the top of the lifting frame.

[0026] Beneficial effects of the present invention:

[0027] 1. The present invention utilizes the rotating bevel gear 2 to drive the two bevel gears 1 to rotate synchronously in the opposite direction, thereby driving the two rotating shafts to rotate synchronously in the opposite direction, and then driving the outer capstan and the inner capstan to move synchronously in the opposite direction under the transmission of the belt, so as to complete the forward and reverse double-stage twisting of the multiple core wires, forming a double-layer twisted wire core structure with inner and outer double-layer forward and reverse twisting, thereby improving the overall use strength, flexibility and stability of the wire core;

[0028] 2. The present invention uses two covering mechanisms to cover the outer sides of the inner twisted and outer twisted wire cores with shielding tapes respectively, which can reduce electromagnetic interference and improve the durability of the cable on the one hand, and prevent the twisted wire cores from loosening on the other hand;

[0029] 3. The present invention cleans the dust, i.e., solid particles, attached to the outer side of the core wire passing through the cleaning ring by rotating the bristles on the inner side of the cleaning ring, thereby avoiding damage to the surface of the core wire during the subsequent twisting process, and uses an atomizing nozzle to spray lubricating oil on the outer side of the core wire after the surface cleaning to prevent multiple strands of core wire from being worn due to excessive friction between the core wires during the subsequent twisting process. At the same time, the rotating gear is used to simultaneously drive multiple outer cylinders to rotate, thereby effectively improving the cleaning effect on the core wire and the uniformity of lubricating oil spraying;

[0030] 4. Each processing step of the present invention is designed in a vertically integrated distribution style, which can greatly reduce the horizontal floor space and facilitate operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0033] Figure 2 is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0034] Figure 3 It is a schematic diagram of the structure of the forward and reverse double-stage twisting mechanism of the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the coating mechanism of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the lead-out mechanism of the present invention;

[0037] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0038] Figure 7 It is a partial structural schematic diagram of the core wire surface treatment mechanism of the present invention;

[0039] Figure 8 The present invention Figure 7 Schematic diagram of the decomposition of

[0040] Fig. 9 The present invention Figure 7 A schematic cross-sectional structure diagram of ;

[0041] Fig.10 The present invention Fig. 9 A schematic diagram of the structure enlargement of part A;

[0042] Fig.11 The present invention Fig. 9 Schematic diagram of the enlarged structure of part B.

[0043] The reference numerals in the figure are as follows: 1, base; 2, bracket; 3, L-shaped column; 4, U-shaped frame; 5, wire release mechanism; 51, side frame; 52, folding groove; 53, core wire reel; 54, conductor frame; 6, core wire surface treatment mechanism; 61, bracket; 62, limit ring 1; 63, gear ring; 64, gear 1; 65, outer cylinder; 66, inner cylinder; 67, stopper assembly; 671, vertical plate; 6 72, L-shaped seat; 673, card frame; 674, socket; 675, plug column; 676, spring; 677, limit frame; 68, inclined guide ring; 69, drain groove; 610, oil groove; 611, oil pump; 612, oil supply groove; 613, ring groove; 614, oil filling groove; 615, cleaning ring; 616, atomizing nozzle; 617, window; 618, strip groove; 619, strip block; 6 20, through hole; 7, forward and reverse double-stage twisting mechanism; 71, horizontal plate 1; 72, outer capstan; 73, inner capstan; 74, T-shaped ring groove; 75, T-shaped ring block; 76, horizontal plate 2; 77, wire reel; 78, horizontal plate 3; 79, rotating shaft; 710, limit ring 2; 711, bevel gear 1; 712, transmission wheel; 713, transmission ring; 714, through groove; 715, bevel gear 2; 8 , covering mechanism; 81, straight plate; 82, stand; 83, boss; 84, shielding tape reel; 85, guide roller; 86, cylinder; 87, lifting frame; 88, plug plate; 89, cross chuck; 9, lead-out mechanism; 91, L-shaped bracket; 92, arc groove; 93, disc; 94, tooth groove; 95, through groove; 96, gear two; 97, square groove one; 98, square groove two; 99, wire conveying roller. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The wire core of the present invention is a kind of power accessory in the smart grid industry, which is a conductor for transmitting power or information from one place to another. The wire core twisting equipment is a part of the equipment for twisting multi-core wires and cables, which is used to twist multiple core wires into one wire core.

[0046] Example 1: Refer to the attached specification Figure 1-2, a multi-strand wire core twisting device according to an embodiment of the present invention comprises a base 1, a bracket 2 is arranged on the top of the base 1, a plurality of L-shaped columns 3 evenly distributed in an annular shape are fixedly connected between the base 1 and the bracket 2, a U-shaped frame 4 is fixedly arranged on the top of the bracket 2, and a plurality of wire holes 1 evenly distributed in an annular shape are opened through the top of the bracket 2 (the present invention takes 6 as an example, and the specific number can be adjusted according to actual production needs), and a wire release mechanism 5 is installed at the position of each wire hole 1 on the top of the base 1;

[0047] A forward and reverse double-stage twisting mechanism 7 for twisting multiple strands of core wires is installed in the middle of the inner side of the U-shaped frame 4. The forward and reverse double-stage twisting mechanism 7 is composed of a power component and a guide twisting component.

[0048] A wire outlet hole is formed through the top of the U-shaped frame 4, and a lead-out mechanism 9 for guiding the stranded wire core to be discharged from the wire outlet hole is installed at the position of the inner top of the U-shaped frame 4 corresponding to the wire outlet hole.

[0049] It should be noted that the present invention uses a forward and reverse double-stage twisting mechanism 7 to perform double-stage twisting in forward and reverse directions on the multiple core wires unwound by multiple unwinding mechanisms 5 to form a wire core twisted in inner and outer double-layer directions to improve the strength, flexibility and stability of the wire, and uses a lead-out mechanism 9 to deliver the twisted wire core through the wire outlet hole.

[0050] Specifically, Figure 2 As shown, the unwinding mechanism 5 includes two side frames 51 fixed on the top of the base 1, and the tops of the two side frames 51 are each provided with a folding groove 52, a core wire roller 53 for winding the core wire is provided between the two folding grooves 52, and a conductor frame 54 is fixedly connected between the top surfaces of the two side frames 51, wherein the inclined section of the folding groove 52 can be directed opposite to the unwinding direction of the core wire roller 53 to effectively prevent the core wire roller 53 from being dislocated during the unwinding process. At the same time, the folding groove 52 is used to support the core wire roller 53, which is also convenient for quick replacement of the core wire roller 53.

[0051] It should be noted that the unwinding power of the core wire roller 53 is derived from the driving force of the lead-out mechanism 9 to guide the wire to the wire outlet hole, wherein, in the process of unwinding the core wire to be twisted, a plurality of core wire rollers 53 wound with core wires are erected between the folding grooves 52 on the two side frames 51 which are arranged opposite to each other, and the core wire is passed through the corresponding wire hole under the guidance of the corresponding wire frame 54, and then passes through the forward and reverse double-stage twisting mechanism 7, the lead-out mechanism 9 and the wire outlet hole in turn, and then the lead-out mechanism 9 and the forward and reverse double-stage twisting mechanism 7 are started, and the lead-out mechanism 9 is used to send the twisted wire core through the wire outlet hole, and drive the core wire roller 53 to continuously unwind the core wire.

[0052] Specifically, Figure 2-3As shown, the guide twisting assembly includes two horizontal plates 76 fixed on the inner side of the U-shaped frame 4, and a wire drum 77 is fixedly connected between the opposite ends of the two horizontal plates 76. A plurality of wire holes 2 (the present invention is described by taking 3 as an example, and the specific number can be adjusted according to actual production needs, and the preferred ratio of the number of wire holes 1 to the number of wire holes 2 is 2:1) are opened through the top of the wire drum 77. The wire holes 2 are evenly distributed in an annular shape. In addition, a through hole is opened at the center of the wire drum 77 and is vertically colinearly arranged with the outlet hole on the U-shaped frame 4 for the inner twisted wire core to pass through;

[0053] The top and bottom of the wire drum 77 are respectively provided with an outer capstan 72 and an inner capstan 73, and the outer capstan 72 and the inner capstan 73 are provided with T-shaped ring grooves 74 at the top and bottom of the outer capstan 72 and the inner capstan 73. The positions of the two sides of the U-shaped frame 4 corresponding to the T-shaped ring grooves 74 are fixedly connected with a transverse plate 71, and the end of the transverse plate 71 is fixedly provided with a T-shaped ring block 75 slidably connected to the corresponding T-shaped ring groove 74, so that the outer capstan 72 and the inner capstan 73 can be lifted and limited by using the horizontally arranged transverse plate 71, and the rotation and twisting process of the outer capstan 72 and the inner capstan 73 will not be affected;

[0054] A plurality of annular evenly distributed external twisting wire grooves and internal twisting wire grooves are respectively formed through the axis centerline positions of the external twisting wire grooves 72 and the internal twisting wire grooves 73, and the external twisting wire grooves and the internal twisting wire grooves are spiral grooves with opposite spiral directions, and core grooves for the wire cores to pass through after the internal twisting are formed between the plurality of external twisting wire grooves;

[0055] The power assembly includes two transverse plates 3 78 fixed to the inner side of the U-shaped frame 4, the two transverse plates 3 78 are respectively located at the top and bottom of the transverse plate 2 76, and the middle parts of the two transverse plates 3 78 are movably penetrated with a rotating shaft 79, and the outer side of the rotating shaft 79 is fixedly sleeved with two limiting rings 2 710 respectively fitting with the upper and lower end surfaces of the corresponding transverse plates 3 78, and the limiting rings 2 710 can be used to limit the relative position of the rotating shaft 79, and the opposite ends and the opposite ends of the two rotating shafts 79 are respectively fixedly connected with a transmission wheel 712 and a bevel gear 1 711, as shown in FIG. Figure 3 As shown, one end of the rotating shaft 79 connected to the rotating wheel 712 movably passes through the horizontal plate 1 71 at the corresponding position, so that the transmission wheel 712 is located between the two horizontal plates 1 71 at the corresponding position;

[0056] A through slot 714 is provided in the middle of the second horizontal plate 76 corresponding to the third horizontal plate 78, and a bevel gear 715 meshing with two bevel gears 711 is rotatably installed at the position corresponding to the through slot 714 on the inner side of the U-shaped frame 4, and a motor 1 for driving the bevel gear 2 715 to rotate is fixedly installed on the outer side of the U-shaped frame 4. A transmission ring 713 opposite to the corresponding transmission wheel 712 is fixedly sleeved on the outer side of the outer capstan 72 and the inner capstan 73, and the corresponding transmission wheel 712 is connected to the transmission ring 713 through a belt transmission. The two sets of horizontal plates 71 arranged horizontally and parallel at the corresponding positions can be used to limit the belt during the transmission process to prevent the belt from being dislocated.

[0057] It should be noted that, in the process of twisting the unwound multi-strand core wires, firstly, three of the core wires are passed through the inner twisting lead groove at the center of the inner capstan 73, and the other three core wires are passed through the three wire holes 2 on the wire reel 77, and then the three core wires that have passed through the wire holes 2 and the inner wire core that has completed the inner twisting and passed through the perforated holes are simultaneously passed through the three outer twisting lead grooves at the center of the outer capstan 72 and the core groove formed between the three outer twisting lead grooves. Meanwhile, the three core wires that are threaded through the inner capstan 73 and the three core wires that are passed through the wire hole 2 on the wire reel 77 are arranged alternately. When the unwound six core wires pass through the guide twisting assembly, the motor 1 is controlled to rotate through the control end to drive the bevel gear 2 715 to rotate.

[0058] During the rotation of the bevel gear 2 715, the two bevel gears 1 711 are driven to rotate synchronously in the opposite direction, thereby driving the two rotating shafts 79 to rotate synchronously in the opposite direction, and then driving the outer capstan 72 and the inner capstan 73 to move synchronously in the opposite direction under the transmission of the belt, so as to complete the forward and reverse double-stage twisting of the six-strand core wire, forming a double-layer twisted wire core structure with inner and outer double-layer forward and reverse twisting, thereby improving the overall use strength, flexibility and stability of the wire core;

[0059] Furthermore, in the process of the unwinding six-strand core wire passing through the guide twisting assembly, when three of the core wires pass through the inner twisting lead groove at the center position of the inner capstan 73, it is necessary to control the manually controlled lower capstan 73 to rotate to initially complete the inner twisting action, so that the three core wires undergoing inner twisting form an inner twisted wire core. During this time, the outer capstan 72 will idle under the rotation of the inner capstan 73, and when the inner twisting is completed and passes through the perforated inner twisted wire core and the other three core wires passing through the wire hole 2 pass through the core groove on the outer capstan 72 and the core wires of the three outer twisting lead grooves, the motor 1 is started to work, so that the unwinding six-strand core wire can perform a continuous and stable two-stage twisting action in the forward and reverse directions under the action of the forward and reverse two-stage twisting mechanism 7.

[0060] Specifically, Figure 1 and Figure 5As shown, the lead-out mechanism 9 includes two L-shaped brackets 91 fixed on the top of the inner side of the U-shaped frame 4, and the inner bottom ends of the two L-shaped brackets 91 are each provided with an arc groove 92, and a disc 93 is rotatably installed between the two arc grooves 92, and a square groove 2 98 and a square groove 1 97 are centrally symmetrically arranged about the vertical center axis of the square groove 2 98 are provided on the top of the disc 93, and two wire conveying rollers 99 are rotatably installed at the positions of the two square grooves 1 97 inside the square groove 2 98, and a motor 3 for driving the corresponding wire conveying roller 99 to rotate is fixedly installed inside the two square grooves 1 97, wherein a semicircular annular groove is provided in the middle of the outer side of the two wire conveying rollers 99, and the diameter of the circular annular groove formed by the two semicircular annular grooves is equal to the diameter of the wire core that completes the double-stage twisting in the forward and reverse directions, and the two wire conveying rollers 99 rotate mutually counterclockwise under the action of the corresponding motor 3, thereby driving the wire core that completes the double-stage twisting in the forward and reverse directions to be continuously conveyed upward and discharged through the wire outlet hole;

[0061] The lead-out mechanism 9 also includes a through groove 95 opened in the middle of the inner side of the two L-shaped brackets 91 and connected to the corresponding arc groove 92. A plurality of tooth grooves 94 evenly distributed in a ring shape are opened on the top of the disc 93. The two through grooves 95 are both located on a ring track surrounded by the plurality of tooth grooves 94. A gear 2 96 meshing with the tooth groove 94 is rotatably installed in the middle of the inner side of the two L-shaped brackets 91. A motor 2 for driving the corresponding gear 2 96 to rotate is fixedly installed in the middle of the outer side of the two L-shaped brackets 91. The gear 2 96 meshes with the tooth groove 94 after passing through the corresponding through groove 95. In addition, when the disc 93 rotates under the drive of the gear 2 96, the disc 93 rotates synchronously (in terms of rotation direction and rotation speed) with the outer capstan 72.

[0062] It should be noted that in the process of using the lead-out mechanism 9 to discharge the wire core that has completed the double-stage twisting in the forward and reverse directions from the wire outlet hole, two motors three are used to drive the corresponding wire conveying rollers 99 to rotate in opposite directions, and the two rotating wire conveying rollers 99 are used to continuously convey the wire core that has completed the double-stage twisting in the forward and reverse directions toward the direction of the wire outlet hole, so that the twisted wire core is continuously discharged and sent to the next workstation for processing, and in the process of conveying the twisted wire core, the motor two is also used to drive the disc 93 to rotate synchronously with the external capstan 72, which can effectively prevent the wire core that has completed the external twisting from becoming loose.

[0063] Example 2: Refer to the attached instructions Figure 1 and Figure 6-10 In one embodiment of the present invention, a multi-strand wire core twisting device is provided, wherein a core wire surface treatment mechanism 6 for pre-treating the surface of the multi-strand core wires to be twisted is provided between the base 1 and the bracket 2, and the core wire surface treatment mechanism 6 is composed of a treatment cylinder corresponding to each wire release mechanism 5 and a driving part for synchronously driving the plurality of treatment cylinders to rotate;

[0064] The processing cylinder includes an outer cylinder 65 and an inner cylinder 66. The inner top of the outer cylinder 65 is provided with an annular groove 613. The bottom of the inner cylinder 66 is fixed with an oblique guide ring 68. The minimum inner diameter of the oblique guide ring 68 is equal to the diameter of the wire core after the double-stage twisting in the forward and reverse directions. At the same time, the minimum inner diameter of the oblique guide ring 68 is smaller than the inner diameter of the inner cylinder 66. A cleaning ring 615 is fixedly provided at the inner top of the oblique guide ring 68. A brush arranged downwardly obliquely can be added to the inner side of the cleaning ring 615 to clean the wire attached to the unwinding wire. The particles on the core wire surface are prevented from being damaged in the subsequent twisting process. One end of the inner tube 66 connected to the oblique guide ring 68 is movably inserted into the ring groove 613. The bottom of the outer tube 65 is provided with an oil groove 610. The top of the outer tube 65 is provided with an oil filling groove 614 connected to the oil groove 610. The connection between the inner tube 66 and the oblique guide ring 68 is provided with a plurality of leakage grooves 69 connected to the oil groove 610. The outer side of the outer tube 65 is provided with a window 617 for observing the remaining lubricating oil in the oil groove 610.

[0065] A strip groove 618 is provided at the top inner side of the annular groove 613, and a strip block 619 is fixedly provided at the outer side of the inner cylinder 66 and is movably plugged into the corresponding strip groove 618. The arrangement of the strip groove 618 and the strip block 619 can ensure that the inner cylinder 66 and the outer cylinder 65 can move synchronously. A through hole 620 connected to the inner cavity of the inner cylinder 66 is provided at the outer side of the strip block 619, and an atomizing nozzle 616 is fixedly installed at one end of the through hole 620 close to the inner cavity of the inner cylinder 66. An oil supply groove 612 connected to the through hole 620 is provided at the top inner side of the oil groove 610, and an oil pump 611 connected to the oil supply groove 612 is fixedly provided at the bottom inner side of the oil groove 610;

[0066] The driving part includes a gear 64 rotatably mounted on the bottom of the bracket 2 and a plurality of brackets 61 fixedly mounted on the bottom of the bracket 2, the bracket 61 is composed of a ring bar and an L-shaped rod fixedly connecting the ring bar and the bracket 2, an outer cylinder 65 is movably inserted into the ring bar, and two limit rings 62 are fixedly sleeved on the outer side of the outer cylinder 65, which are respectively fitted with the upper end surface and the lower end surface of the ring bar, and the limit rings 62 can be used to limit the relative position of the outer cylinder 65, and a gear ring 63 meshing with the gear 64 is fixedly sleeved on the outer side of the outer cylinder 65, and a motor 4 for driving the gear 64 to rotate is fixedly mounted on the top of the bracket 2.

[0067] It should be noted that, in the process of treating the surface of the unwound core wire, the core wire is inserted from the bottom end of the outer cylinder 65, and passes through the cleaning ring 615, the inclined guide ring 68 and the inner cylinder 66 in sequence, so that the dust or solid particles attached to the outer side of the core wire passing through the cleaning ring 615 are cleaned by the bristles inside the cleaning ring 615. When the core wire with the surface cleaned passes through the inclined guide ring 68 and enters the inner part of the inner cylinder 66, the oil pump 611 is started to pump the lubricating oil in the oil groove 610 to the corresponding oil supply groove 612, and passes through the corresponding through hole 620. , after being atomized by the atomizing nozzle 616, it is sprayed to the outside of the core wire whose surface has been cleaned, so as to prevent the multiple strands of core wire from being worn due to excessive friction between the core wires during the subsequent twisting process, and at the same time, to increase the smoothness of the core wire passing through the inner capstan 73, the wire reel 77 and the outer capstan 72. When the lubricating oil sprayed to the outside of the core wire whose surface has been cleaned forms a fluid and slides down, it will be guided by the oblique guide ring 68 to the inside of the annular cavity formed between the inner side of the inner tube 66 and the outer side of the oblique guide ring 68, and will flow back along the leakage groove 69 to the inside of the oil groove 610 for reuse;

[0068] In addition, in the process of processing the surface of the unwound core wire, a gear ring 63 can be set on the outside of each outer cylinder 65, and a gear 64 driven by a motor 4 can be used to simultaneously drive multiple outer cylinders 65 to rotate, which can effectively improve the cleaning effect of the core wire surface and the uniformity of the lubricating oil spraying.

[0069] Specifically, Figure 7 , Fig. 9 and Fig.11 As shown, a stopper assembly 67 is installed between the top surfaces of the inner cylinder 66 and the outer cylinder 65 to prevent the inner cylinder 66 from loosening. The stopper assembly 67 includes a vertical plate 671 fixed to the top of the outer cylinder 65 and a limit frame 677. An L-shaped seat 672 is movably inserted inside the limit frame 677. The stopper assembly 67 also includes a card frame 673 fixed to the top of the inner cylinder 66 and corresponding to the limit frame 677.

[0070] A socket 674 is provided on one side of the L-shaped seat 672, and a plug post 675 fixedly connected to the corresponding vertical plate 671 is movably inserted inside the socket 674. A spring 676 is sleeved on the outside of the plug post 675 for fixedly connecting the L-shaped seat 672 and the vertical plate 671. When the spring 676 is in a natural state, the plug post 675 still remains inserted into the corresponding socket 674. At the same time, when the L-shaped seat 672 is in a state of not blocking the annular groove 613, the plug-in end of the L-shaped seat 672 still remains inserted into the limit frame 677.

[0071] It should be noted that, in the process of assembling the inner cylinder 66 into the inner part of the outer cylinder 65, the strip block 619 on the outer side of the inner cylinder 66 is aligned with the strip groove 618 on the inner side of the annular groove 613, and then the inner cylinder 66 is directly pressed downward on the inclined surface of the L-shaped seat 672, so that the L-shaped seat 672 moves along the plug column 675 toward the direction of the vertical plate 671, and the spring 676 is compressed. When the L-shaped seat 672 is squeezed to the point where there is no obstruction to the annular groove 613, the inner cylinder 66 can be smoothly inserted into the inner side of the annular groove 613 of the outer cylinder 65. It is fully inserted into the annular groove 613 on the inner side of the outer cylinder 65, and the upper end surface of the inner cylinder 66 is arranged horizontally and coplanarly with the upper end surface of the outer cylinder 65. At this time, the L-shaped seat 672 is pushed out along the plug column 675 under the action of the compression restoring force of the spring 676, and is inserted into the card frame 673 at the corresponding position at the top of the inner cylinder 66. In addition, the oil supply groove 612 in this state forms a passage with the corresponding through hole 620. In this way, the stop assembly 67 can be used to prevent the inner cylinder 66 from loosening and causing subsequent lubricating oil supply to be blocked.

[0072] Example 3: Refer to the attached specification Figure 1 and Figure 4 In one embodiment of the present invention, a multi-strand wire core twisting device is provided, and a covering mechanism 8 is provided at the top of the horizontal plate 71 corresponding to the outlet end position of the outer capstan 72 and the inner capstan 73. The covering mechanism 8 includes a straight plate 81 fixed to the inner side of the U-shaped frame 4, a vertical frame 82 fixed to the top of the corresponding horizontal plate 71, and a convex column 83, and a guide roller 85 is rotatably installed inside the vertical frame 82;

[0073] A cylinder 86 is fixedly installed at the position of the convex column 83 on the top of the straight plate 81, and the telescopic end of the cylinder 86 movably penetrates one end of the straight plate 81 and is fixedly connected to a lifting frame 87. A shielding tape roller 84 is movably sleeved on the outer side of the convex column 83, and a cross groove is opened at the top of the shielding tape roller 84. A cross chuck 89 is movably inserted inside the cross groove, and a motor 5 fixedly connected to the cross chuck 89 is installed inside the lifting frame 87. When the shielding tape roller 84 needs to be replaced, it is only necessary to drive the cross chuck 89 to rise and disengage from the cross groove by the cylinder 86, and then remove the shielding tape roller 84 from the convex column 83. The disassembly and assembly is convenient and quick. Both sides of the top of the lifting frame 87 are fixedly connected with plug plates 88 that movably penetrate the straight plate 81, which can ensure the stability of the lifting frame 87 during the lifting process.

[0074] It should be noted that, in the process of performing forward and reverse double-stage twisting of the multiple core wires by using the forward and reverse double-stage twisting mechanism 7, two covering mechanisms 8 can be used to cover the outer sides of the inner twisted and outer twisted cores with shielding tapes respectively, which can reduce electromagnetic interference and improve the durability of the cable on the one hand, and prevent the loosening of the twisted cores on the other hand;

[0075] During the process of wrapping the shielding tape, the shielding tape reel 84 is driven by motor five to unwind the shielding tape, and the unwound shielding tape is guided by the guide roller 85 and then wrapped around the outside of the twisted wire core. The guide roller 85 can be used to tighten the unwound shielding tape to ensure that the shielding tape is in a straight state. At the same time, it is also necessary to control the unwinding degree of the shielding tape reel 84 to be the same as the speed of the outer capstan 72 rotating and wrapping, so that the shielding layer wrapped around the outside of the twisted wire core will not be wrinkled.

[0076] In the above technical solution, the motor mentioned is a 600-type motor; the oil pump 611 mentioned is an electric lubricating oil pump; and the cylinder 86 mentioned is a single-acting cylinder of model DSA25N200.

[0077] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A device for twisting the cores of multiple electric wires, comprising a base (1), characterized in that: A support seat (2) is provided on the top of the base (1); a plurality of L-shaped columns (3) evenly distributed in a ring shape are fixedly connected between the base (1) and the support seat (2); a U-shaped frame (4) is fixedly provided on the top of the support seat (2); and a plurality of wire holes one evenly distributed in a ring shape are opened through the top of the support seat (2); a wire release mechanism (5) is installed at a position corresponding to each wire hole one on the top of the base (1); A core wire surface treatment mechanism (6) for pre-treating the surface of the multiple strands of core wire to be twisted is provided between the base (1) and the bracket (2), and the core wire surface treatment mechanism (6) is composed of a treatment cylinder corresponding to each wire-releasing mechanism (5) and a driving unit for synchronously driving the multiple treatment cylinders to rotate; A forward and reverse double-stage twisting mechanism (7) for twisting a plurality of core wires is installed in the middle of the inner side of the U-shaped frame (4), and the forward and reverse double-stage twisting mechanism (7) is composed of a power component and a guide twisting component; The guide twisting assembly comprises two transverse plates (76) fixed on the inner side of the U-shaped frame (4), a wire reel (77) is fixedly connected between the opposite ends of the two transverse plates (76), and a plurality of wire holes (77) are evenly distributed in an annular shape and are formed through the top of the wire reel (77); The top and bottom of the conductor reel (77) are respectively provided with an outer capstan (72) and an inner capstan (73); the outer top and bottom of the outer capstan (72) and the inner capstan (73) are both provided with T-shaped ring grooves (74); the positions of the two sides of the U-shaped frame (4) corresponding to the T-shaped ring grooves (74) are both fixedly connected with a transverse plate (71); the end of the transverse plate (71) is fixedly provided with a T-shaped ring block (75) slidably connected to the inside of the corresponding T-shaped ring groove (74); A plurality of annularly evenly distributed external twisting wire grooves and internal twisting wire grooves are respectively formed through the axis center lines of the external twisting wire groove (72) and the internal twisting wire groove (73), and the external twisting wire grooves and the internal twisting wire grooves are spiral grooves with opposite spiral directions, and core grooves are formed between the plurality of external twisting wire grooves for the wire cores to pass through after the internal twisting is completed; The power assembly comprises two transverse plates three (78) fixed on the inner side of the U-shaped frame (4), the two transverse plates three (78) are respectively located at the top and bottom of the transverse plate two (76), a rotating shaft (79) is movably provided through the middle of the two transverse plates three (78), two limiting rings two (710) are respectively fitted with the upper and lower end surfaces of the corresponding transverse plates three (78) on the outer side of the rotating shaft (79), and the two rotating shafts (79) are respectively fixedly connected with a transmission wheel (712) and a bevel gear one (711) at the opposite ends and the opposite ends thereof; A through slot (714) is provided in the middle of the second horizontal plate (76) corresponding to the third horizontal plate (78); a bevel gear (715) meshing with the two bevel gears (711) is rotatably mounted at a position corresponding to the through slot (714) on the inner side of the U-shaped frame (4); a motor (715) for driving the second bevel gear (715) to rotate is fixedly mounted on the outer side of the U-shaped frame (4); a transmission ring (713) opposite to the corresponding transmission wheel (712) is fixedly sleeved on the outer side of the outer capstan (72) and the inner capstan (73); and the corresponding transmission wheels (712) and the transmission ring (713) are connected via a belt drive; A wire outlet hole is formed through the top of the U-shaped frame (4), and a lead-out mechanism (9) for guiding the stranded wire core to be discharged from the wire outlet hole is installed at a position on the inner top of the U-shaped frame (4) corresponding to the wire outlet hole.

2. The multi-strand wire core twisting device according to claim 1, characterized in that: The wire-releasing mechanism (5) comprises two side frames (51) fixed to the top of the base (1), the tops of the two side frames (51) are each provided with a wire folding groove (52), a core wire winding roller (53) is arranged between the two wire folding grooves (52), and a wire frame (54) is fixedly connected between the top surfaces of the two side frames (51).

3. The multi-strand wire core twisting device according to claim 1, characterized in that: The treatment cylinder comprises an outer cylinder (65) and an inner cylinder (66); an annular groove (613) is provided at the inner top end of the outer cylinder (65); an inclined guide ring (68) is fixedly provided at the bottom end of the inner cylinder (66); a cleaning ring (615) is fixedly provided at the inner top end of the inclined guide ring (68); one end of the inner cylinder (66) connected to the inclined guide ring (68) is movably inserted into the annular groove (613); an oil groove (610) is provided at the bottom end of the outer cylinder (65); an oil injection groove (614) connected to the oil groove (610) is provided at the top end of the outer cylinder (65); a plurality of leakage grooves (69) connected to the oil groove (610) are provided at the connection between the inner cylinder (66) and the inclined guide ring (68); and a viewing window (617) is provided on the outer side of the outer cylinder (65); The inner top of the annular groove (613) is provided with a strip groove (618); the outer side of the inner cylinder (66) is fixedly provided with a strip block (619) movably plugged into the corresponding strip groove (618); the outer side of the strip block (619) is provided with a through hole (620) connected to the inner cavity of the inner cylinder (66); an atomizing nozzle (616) is fixedly installed at one end of the through hole (620) close to the inner cavity of the inner cylinder (66); the inner top of the oil groove (610) is provided with an oil supply groove (612) connected to the through hole (620); and the inner bottom of the oil groove (610) is fixedly provided with an oil pump (611) connected to the oil supply groove (612).

4. The multi-strand wire core twisting device according to claim 3, characterized in that: The driving part comprises a gear (64) rotatably mounted on the bottom of the bracket (2) and a plurality of brackets (61) fixedly mounted on the bottom of the bracket (2), the bracket (61) comprising a ring bar and an L-shaped rod fixedly connecting the ring bar and the bracket (2), an outer cylinder (65) movably inserted into the ring bar, and a fixed sleeve on the outer side of the outer cylinder (65) is provided with two limit rings (62) respectively fitting with the upper end surface and the lower end surface of the ring bar, a fixed sleeve on the outer side of the outer cylinder (65) is provided with a gear ring (63) meshing with the gear (64), and a motor (4) for driving the gear (64) to rotate is fixedly mounted on the top of the bracket (2).

5. The multi-strand wire core twisting device according to claim 3, characterized in that: A stopper assembly (67) for preventing the inner cylinder (66) from loosening is installed between the top surfaces of the inner cylinder (66) and the outer cylinder (65). The stopper assembly (67) comprises a vertical plate (671) fixed to the top of the outer cylinder (65) and a limit frame (677). An L-shaped seat (672) is movably inserted inside the limit frame (677). The stopper assembly (67) further comprises a clamping frame (673) fixed to the top of the inner cylinder (66) and corresponding to the limit frame (677). A plug hole (674) is provided on one side of the L-shaped seat (672), a plug post (675) fixedly connected to the corresponding vertical plate (671) is movably inserted into the plug hole (674), and a spring (676) fixedly connected to the L-shaped seat (672) and the vertical plate (671) is sleeved on the outside of the plug post (675).

6. The multi-strand wire core twisting device according to claim 1, characterized in that: The lead-out mechanism (9) comprises two L-shaped brackets (91) fixed to the top of the inner side of the U-shaped frame (4), the inner bottom ends of the two L-shaped brackets (91) are each provided with an arc groove (92), a disc (93) is rotatably mounted between the two arc grooves (92), a square groove 2 (98) and a square groove 1 (97) arranged symmetrically about the vertical center axis of the square groove 2 (98) are formed on the top of the disc (93), two wire conveying rollers (99) are rotatably mounted at the positions of the two square grooves 1 (97) inside the square groove 2 (98), and a motor 3 for driving the corresponding wire conveying rollers (99) to rotate is fixedly mounted inside the two square grooves 1 (97).

7. The multi-strand wire core twisting device according to claim 6, characterized in that: The lead-out mechanism (9) further comprises a through slot (95) provided in the middle of the inner sides of the two L-shaped brackets (91) and connected to the corresponding arc slot (92); a plurality of tooth slots (94) evenly distributed in an annular shape are provided on the top of the disk (93); the two through slots (95) are both located on an annular track surrounded by the plurality of tooth slots (94); a second gear (96) meshing with the tooth slot (94) is rotatably mounted in the middle of the inner sides of the two L-shaped brackets (91); and a second motor for driving the corresponding second gear (96) to rotate is fixedly mounted in the middle of the outer sides of the two L-shaped brackets (91).

8. The multi-strand wire core twisting device according to claim 1, characterized in that: A covering mechanism (8) is provided at the top of the horizontal plate (71) at the outlet end position corresponding to the outer capstan (72) and the inner capstan (73), the covering mechanism (8) comprising a straight plate (81) fixed to the inner side of the U-shaped frame (4), a vertical frame (82) fixed to the top of the corresponding horizontal plate (71) and a convex column (83), and a guide roller (85) is rotatably mounted on the inner side of the vertical frame (82); A cylinder (86) is fixedly installed at a position corresponding to the convex column (83) on the top of the straight plate (81); the telescopic end of the cylinder (86) movably penetrates one end of the straight plate (81) and is fixedly connected to a lifting frame (87); a shielding tape roller (84) is movably sleeved on the outer side of the convex column (83); a cross groove is provided on the top of the shielding tape roller (84); a cross chuck (89) is movably inserted in the cross groove; a motor 5 fixedly connected to the cross chuck (89) is installed in the lifting frame (87); and plug plates (88) movably penetrating the straight plate (81) are fixedly connected to both sides of the top of the lifting frame (87).

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