A cable stranding machine

Abstract

The application relates to the technical field of cable processing, and particularly discloses a cable stranding machine, which comprises a chassis, a stranding mechanism arranged on the chassis, a mounting mechanism slidably connected to the stranding mechanism, and a plurality of tensioning mechanisms for tensioning wires arranged on the mounting mechanism; when the first end of the wire is tensioned, the mounting mechanism is pushed to move; at this time, the mounting mechanism drives the movable plate to move through the mounting frame; in the moving process of the movable plate, the wire pressing wheel moves along the inclined direction of the wire, and the movable plate gradually moves upwards along the inclined direction of the wire, so that the wire is pressed tightly, so that the first end of the wire is tensioned before stranding; when the last end of the wire is separated from the stranding mechanism, the movable plate is reset and drives the pressing assembly to contact the rotating rod through the slide rod, so that the wire is pressed tightly, so that the last end of the wire is tensioned, and the last end of the wire is prevented from being relaxed due to the loss of tension.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable processing, in particular to a cable stranding machine. BACKGROUND

[0002] The cable stranding machine is the main equipment for producing power cables, plastic cables and rubber cables in wire and cable factories. The cable stranding machine is a complete set of equipment specially designed for manufacturing four-core and five-core plastic cables with a cross-sectional area of 25-240 square millimeters. It is designed by referring to advanced cable stranding equipment at home and abroad and combining the actual situation of wire and cable production in China. The structure of the cable stranding machine is composed of a transmission device, a stranding cage, a double-row wire mold base, a wrapping head, a steel belt head, a meter counter, a traction device, a wire collecting rack and an electrical control.

[0003] A cable stranding machine is disclosed in Chinese Patent No. CN119132746B. The cable stranding machine includes a wire placement rack, a wire installation roller rotatably installed on the wire placement rack, a wire tube rotatably connected to one end of the wire placement rack, a first gear, a protective wire placement disc, a guide disc and a stranding disc fixedly sleeved on the wire tube in sequence, a die head placed in front of the wire tube, a second gear engaged with the first gear, and a wire placement rack rotatably connected to the end of the second gear. By driving the guide disc to rotate, the wire wheels in the six installation slots of the guide disc can successively contact the lubricating oil in the oil tank. The wire wheels with attached lubricating oil can apply lubricating oil to the protective wire, thereby achieving lubrication of the protective wire.

[0004] The structure design of the above-mentioned related technology can lubricate the cable during the cable stranding process. However, before the cable stranding, the tension of the wires is different, resulting in some wires being too tight and some wires still being loose, thereby affecting the quality of the stranded cable. When the stranding reaches the end of the wire, the wire is separated from the stranding disc, making it difficult to control the tension of the wire, thereby requiring the use of other machinery for stranding or cutting off the end of the wire, causing material waste.

[0005] Therefore, a cable stranding machine is proposed to solve the problems mentioned above. SUMMARY

[0006] The present application provides a cable stranding machine, which aims to solve the problem of difficult control of wire tension before and after stranding in related technologies.

[0007] The cable stranding machine of the present application includes a chassis, a stranding mechanism provided on the chassis, a mounting mechanism slidably connected to the stranding mechanism, and a plurality of tensioning mechanisms for tensioning the wires provided on the mounting mechanism.

[0008] The tensioning mechanism comprises a rotating assembly arranged in the mounting mechanism, a wire pressing assembly elastically slidingly arranged below the rotating assembly, and a pressing assembly elastically slidingly arranged above the rotating assembly, and the wire pressing assembly is connected with the pressing assembly.

[0009] The rotating assembly comprises a mounting seat mounted on the mounting mechanism, a mounting frame rotatably connected to the mounting seat, and a rotating rod rotatably connected to the mounting frame, and the pressing assembly is located above the rotating rod.

[0010] The wire pressing assembly comprises a movable plate elastically slidingly connected to the mounting frame, a wire passing groove arranged at an end of the movable plate, a wire pressing wheel rotatably connected to the wire passing groove, and sliding rods mounted on both sides of the movable plate, the movable plate is arranged obliquely in the mounting frame, and the sliding rods are connected with the pressing assembly to drive the pressing assembly to press the wire.

[0011] Before the wire is twisted, the end of the wire is pulled out of the twisting mechanism, and then the wire is brought into the wire passing groove of the movable plate and contacts the wire pressing wheel, at this time, the mounting frame is pulled upward to lift the pressing assembly, and the wire is passed between the rotating rod and the pressing assembly after the pressing assembly is moved upward, and finally the wire is connected to the twisting device, after the wire is connected to the twisting device, the mounting mechanism is moved, the mounting mechanism drives the movable plate to move through the mounting frame, in the process of moving, the wire pressing wheel moves along the inclined direction of the wire, and the movable plate gradually moves upward along the inclined direction of the wire, so that the wire is pressed, so that the leading end of the wire is tensioned before twisting, when the end of the wire is separated from the twisting mechanism, the movable plate is reset and the pressing assembly is contacted with the rotating rod through the sliding rod, so that the wire is pressed, so that the end of the wire is tensioned, avoiding the end of the wire to lose tension and become loose.

[0012] Preferably, the mounting mechanism comprises a mounting disc slidingly connected to the twisting mechanism and a containing groove arranged on the mounting disc, the mounting disc has a cavity inside, the mounting seat is mounted on the inner bottom wall of the containing groove, and a notch is arranged on the bottom of one side of the containing groove.

[0013] Preferably, the wire pressing assembly further comprises a sliding block one mounted on the bottom of each side of the movable plate and a connecting shaft mounted on the sliding block one, the bottom of each side of the mounting frame is provided with a groove for sliding of the sliding block one, and the connecting shaft is located in the cavity of the mounting disc.

[0014] When the movable plate moves upward, the movable plate can drive the connecting shaft to be dislocated with the notch on the containing groove through the sliding block one, so as to prevent the wire from pulling the mounting frame to rotate after the pressing assembly presses the wire, thereby ensuring the stability of the wire when it is tensioned.

[0015] Preferably, the pressing assembly comprises a pressing plate slidably connected above the inner part of the mounting frame, two sliding blocks mounted on both sides of the pressing plate, and a limiting piece mounted on the sliding blocks.

[0016] The rubber pad arranged in the groove of the pressing plate can increase the friction between the wire and the pressing plate, thereby improving the tensioning effect on the wire.

[0017] Preferably, the limiting piece comprises a fixed rod, a second torsional spring, and a rotating plate, the fixed rod is mounted on the sliding block, the rotating plate is rotatably connected to the fixed rod, and the second torsional spring is mounted between the sliding block and the rotating plate to drive the rotating plate to reset.

[0018] Preferably, a first torsional spring is arranged between the mounting seat and the inner wall of the mounting frame, the mounting frame is in the shape of U, and L-shaped limiting plates are mounted on both side edges of the mounting frame.

[0019] During the tensioning of the first end of the wire, the movable plate moves upward, and the rotating plate is rotated to the vertical state, so that the rotating plate is clamped into the limiting plate. With the continuous tensioning of the wire, the movable plate continues to move upward, at this time, the rotating plate is disengaged from the limiting plate and resets under the action of the second torsional spring, which is used for preparing the pressing plate to press on the rotating rod. When the wire is separated from the twisting mechanism, the movable plate resets and drives the connecting shaft to correspond to the gap in the accommodating groove, so that the connecting shaft can pass through the gap. At this time, the mounting frame can be rotated by pulling the wire, so that the wire is closer to the twisting device. During the rotation of the mounting frame, the wire end can be tensioned by the cooperation of the first torsional spring, the rotating rod, and the pressing plate, so that the wire end is tensioned.

[0020] Preferably, the twisting mechanism comprises a rotating assembly, a driving assembly, a connecting rod, a guide assembly, a threading disc, and a plurality of wire paying-out assemblies, the rotating assembly is rotatably connected to the base frame, the driving assembly is mounted on the base frame, one end of the connecting rod is mounted on the driving assembly, the other end of the connecting rod sequentially penetrates the rotating assembly, the guide assembly, and the mounting disc and is connected with the threading disc, the rotating assembly and the guide assembly are fixed with the connecting rod, the mounting disc is slidably connected with the connecting rod, and the plurality of wire paying-out assemblies are annularly arranged between the rotating assembly and the guide assembly.

[0021] Preferably, the rotating assembly comprises a rotating disc and a plurality of connecting barrels, the rotating disc is mounted on the connecting rod, the number of the connecting barrels is the same as that of the wire paying-out assemblies, and the connecting barrels are mounted at one end edge position of the rotating disc.

[0022] Preferably, the guide assembly comprises a guide disc and a plurality of installation cylinders, the guide disc is installed on the connecting rod, the plurality of installation cylinders are the same as the number of the installation cylinder one, and the plurality of installation cylinders are installed at the edge position of one end of the guide disc, and the pay-off assembly is rotationally connected between the installation cylinder one and the installation cylinder two.

[0023] Preferably, a through groove corresponding to the installation cylinder two is formed in the guide disc, and two symmetrical rollers are rotationally connected in the through groove.

[0024] The rollers arranged on the guide disc can reduce the friction when the wire passes through the guide disc, thereby improving the production quality of the cable.

[0025] By adopting the technical scheme, the beneficial effects of the present application are as follows: when the first end of the wire is tensioned, the installation mechanism is pushed to move, at this time, the installation mechanism drives the movable plate to move through the mounting frame, in the moving process of the movable plate, the wire pressing wheel moves along the inclined direction of the wire, and at the same time, the movable plate gradually moves upward along the inclined direction of the wire, so as to press the wire tightly, so that the first end of the wire is tensioned before being twisted, when the end of the wire is separated from the twisting mechanism, the movable plate is reset and drives the pressing assembly to contact the rotating rod through the slide rod, so as to press the wire tightly, so that the end of the wire is tensioned, and the end of the wire is prevented from being relaxed due to the loss of tensioning force. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the specific embodiment in the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the twisting mechanism of the specific embodiment in the present application.

[0028] Figure 3 It is a schematic diagram of the structure of the pay-off assembly of the specific embodiment in the present application.

[0029] Figure 4 It is a schematic diagram of the structure of the movable frame of the specific embodiment in the present application.

[0030] Figure 5 It is a schematic diagram of the structure of the guide disc of the specific embodiment in the present application.

[0031] Figure 6 It is a schematic diagram of the structure of the tensioning mechanism of the specific embodiment in the present application.

[0032] Figure 7 It is a schematic diagram of the structure of the installation mechanism of the specific embodiment in the present application.

[0033] Figure 8 It is a schematic diagram of the structure of the rotating assembly of the specific embodiment in the present application.

[0034] Figure 9 Structure diagram of the pressing assembly for the specific embodiment in the present application.

[0035] Figure 10 Structure diagram of the rotating plate for the specific embodiment in the present application.

[0036] Reference signs:

[0037] 10, support mechanism; 11, base frame; 12, mounting assembly; 121, connecting frame; 122, mounting plate; 123, fixing ring; 13, support assembly one; 131, fixing frame; 132, support wheel one; 14, support assembly two; 141, sliding plate; 142, movable frame; 143, support wheel two; 144, sliding bar; 15, twisting frame; 16, hydraulic cylinder;

[0038] 20, twisting mechanism; 21, rotating assembly; 211, rotating disc; 212, mounting cylinder one; 213, connecting cylinder; 22, driving assembly; 221, motor; 222, gear one; 223, gear two; 23, connecting rod; 24, pay-off assembly; 241, rotating frame; 242, pay-off disc; 25, guiding assembly; 251, guiding disc; 252, mounting cylinder two; 253, through slot; 254, roller; 26, threading disc;

[0039] 30, mounting mechanism; 31, mounting disc; 32, accommodating groove; 33, notch;

[0040] 40, tensioning mechanism; 41, rotating assembly; 411, mounting frame; 412, rotating rod; 413, mounting rod; 414, mounting seat; 415, torsional spring one; 416, protruding plate; 417, limiting plate; 42, wire pressing assembly; 421, movable plate; 422, wire passing groove; 423, wire pressing wheel; 424, sliding block one; 425, connecting shaft; 426, sliding rod; 427, spring; 43, pressing assembly; 431, pressing plate; 432, sliding block two; 433, fixing rod; 434, torsional spring two; 435, rotating plate. DETAILED DESCRIPTION

[0041] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0042] As Figures 1 to 10As shown, the cable stranding machine of the present application comprises a supporting mechanism 10, a stranding mechanism 20, a mounting mechanism 30 and a tensioning mechanism 40. The stranding mechanism 20 is arranged on the supporting mechanism 10, and the mounting mechanism 30 is slidingly arranged on the stranding mechanism 20 and rotationally connected with the supporting mechanism 10. The number of the tensioning mechanism 40 is multiple, and in this embodiment, the number of the tensioning mechanism 40 is three. The three tensioning mechanisms 40 are arranged in a ring array on the mounting mechanism 30 with the axis of the mounting mechanism 30 as the center, and the tensioning mechanism 40 can tension the wire.

[0043] When the wire is stranded, the wire on the stranding mechanism 20 is sequentially threaded through the tensioning mechanism 40 and the mounting mechanism 30, and then the mounting mechanism 30 is caused to slide in the horizontal direction, thereby driving the tensioning mechanism 40 to move. In the process of moving, the tensioning mechanism 40 can gradually compress the wire, so that the wire can maintain the same tension at the initial stage of stranding. When the end of the wire is separated from the stranding mechanism 20, the wire can be pressed by the tensioning mechanism 40, and at this time, the end of the wire can be tensioned when moving, so that the first end and the end of the wire are both tensioned when stranding, thereby ensuring the quality of the cable stranding.

[0044] As shown in Figures 1 to 2 , the supporting mechanism 10 comprises a base frame 11, a mounting assembly 12, a supporting assembly one 13, a supporting assembly two 14, a stranding frame 15 and a hydraulic cylinder 16. The mounting assembly 12 is mounted on one side of the top of the base frame 11, and the stranding frame 15 is mounted on the other side of the top of the base frame 11. The stranding frame 15 has a hole for the wire to pass through, so as to gather the wire. The supporting assembly one 13 is mounted between the mounting assembly 12 and the stranding frame 15, the supporting assembly two 14 is slidingly arranged between the supporting assembly one 13 and the stranding frame 15, the hydraulic cylinder 16 is mounted between the supporting assembly two 14 and the stranding frame 15, and the movable end of the hydraulic cylinder 16 is connected with the supporting assembly two 14. The mounting mechanism 30 is rotationally connected with the supporting assembly two 14.

[0045] Before the wire is stranded, the hydraulic cylinder 16 can drive the mounting mechanism 30 to move through the supporting assembly two 14, and at the same time, the mounting mechanism 30 can drive the three tensioning mechanisms 40 arranged thereon to move. In the process of moving, the tensioning mechanism 40 can compress the wire, so as to tension the first end of the wire.

[0046] As shown in Figures 2 to 3 , the mounting assembly 12 comprises a connecting frame 121, a mounting plate 122 and a fixing ring 123. The connecting frame 121 is mounted on one side of the top of the base frame 11, the mounting plate 122 is mounted on one side of the connecting frame 121, and the fixing ring 123 is mounted on the other side of the top of the connecting frame 121.

[0047] Continuing to refer to Figures 2 to 3As shown in the figure, the support assembly one 13 comprises a fixed frame 131 and a support wheel one 132. The fixed frame 131 is composed of two vertical plates with arc-shaped grooves on the top and a connecting plate installed on the top of the chassis 11 and close to one side of the connecting frame 121, and the two vertical plates with arc-shaped grooves are installed on the top of the connecting plate on both sides. The number of support wheel one 132 is multiple, and in this embodiment, the number of support wheel one 132 is four. Four support wheel one 132 are all rotationally connected between the two vertical plates of the fixed frame 131.

[0048] As shown in the figure, Figures 1 to 4 The support assembly two 14 comprises a sliding plate 141, a movable frame 142, a support wheel two 143 and a sliding bar 144. The number of movable frame 142 is two, the top of the two movable frame 142 is provided with an arc-shaped groove, the two movable frame 142 are installed on the top of the sliding plate 141 on both sides, and the movable end of the hydraulic cylinder 16 is installed on the movable frame 142 close to the twisting frame 15. The sliding plate 141 is slidingly connected on the top of the chassis 11 and between the fixed frame 131 and the hydraulic cylinder 16, the number of sliding bar 144 is two, the two sliding bar 144 are installed on the bottom of the sliding plate 141 on both sides, and the chassis 11 is provided with a groove for the sliding bar 144 to slide. The number of support wheel two 143 is multiple, and the number of support wheel two 143 is the same as that of support wheel one 132, and multiple support wheel two 143 are all rotationally connected between the two movable frame 142, and the mounting mechanism 30 is located between the two movable frame 142 and in contact with multiple support wheel two 143.

[0049] When the wire is tensioned, the movable end of the hydraulic cylinder 16 is extended and moves the movable frame 142, at this time the movable frame 142 moves the tensioning mechanism 40 through the mounting mechanism 30 and tensions the wire.

[0050] As shown in the figure, Figures 1 to 3 The twisting mechanism 20 comprises a rotating assembly 21, a driving assembly 22, a connecting rod 23, a pay-off assembly 24, a guide assembly 25 and a threading disc 26. The rotating assembly 21 is rotationally connected to the connecting frame 121, and the driving assembly 22 is installed on the mounting plate 122. One end of the connecting rod 23 is installed on the driving assembly 22 and rotationally connected to the connecting frame 121, the other end of the connecting rod 23 extends to the outside of the mounting mechanism 30 in sequence through the rotating assembly 21, the guide assembly 25 and the mounting mechanism 30, and the threading disc 26 is installed on the other end of the connecting rod 23, and the threading disc 26 is provided with a hole for the wire to pass through. The rotating assembly 21 and the guide assembly 25 are fixed to the connecting rod 23, and the mounting mechanism 30 is slidingly connected to the connecting rod 23. The number of pay-off assembly 24 is multiple, and in this embodiment, the number of pay-off assembly 24 is equal to that of tensioning mechanism 40. Multiple pay-off assembly 24 are rotationally connected between the rotating assembly 21 and the guide assembly 25 in a ring array with the axis of the connecting rod 23 as the center.

[0051] When the wire is paid out, the wire is pulled out from the paying-out assembly 24, and then the wire is sequentially threaded through the guide assembly 25, the tensioning mechanism 40 and the mounting mechanism 30 and then threaded out from the stranding frame 15. When the wire is tensioned, the hydraulic cylinder 16 drives the movable frame 142 to move, at this time, the movable frame 142 drives the tensioning mechanism 40 to move and tension the wire through the mounting mechanism 30. When the wire is stranded, the driving assembly 22 drives the rotating assembly 21, the guide assembly 25 and the mounting mechanism 30 to synchronously rotate through the connecting rod 23, so as to strand the wire.

[0052] As shown in Figures 2 to 3 , the rotating assembly 21 comprises a rotating disc 211, a mounting cylinder one 212 and a connecting cylinder 213. The rotating disc 211 is installed on the outside of the connecting rod 23, the mounting cylinder one 212 is installed on one end of the rotating disc 211 and rotationally connected to the inside of the fixed ring 123, and the connecting cylinder 213 is the same in number as the paying-out assembly 24 and is installed on the other end edge position of the rotating disc 211.

[0053] Continuing to refer to Figures 2 to 3 , the driving assembly 22 comprises a motor 221, a gear one 222 and a gear two 223. The motor 221 is installed on the top of the mounting plate 122, and the gear one 222 is installed on the driving shaft of the motor 221. The gear two 223 is located on the top of the gear one 222 and is engaged with the gear one 222, and the gear two 223 is installed on one end of the outside of the connecting rod 23.

[0054] When the motor 221 drives the gear two 223 to rotate through the gear one 222, the gear two 223 drives the rotating assembly 21, the guide assembly 25 and the mounting mechanism 30 to synchronously rotate through the connecting rod 23.

[0055] As shown in Figures 2 to 3 and Figure 5 , the guide assembly 25 comprises a guide disc 251 and a mounting cylinder two 252. The guide disc 251 is located in the fixed frame 131 and is in contact with the supporting wheel one 132, and the mounting cylinder two 252 is installed on one end edge position of the guide disc 251 and is the same in number as the mounting cylinder one 212. The guide disc 251 is provided with a through slot 253 corresponding to the mounting cylinder two 252 for the wire to pass through. The inside of the through slot 253 is rotationally connected with two symmetrical rollers 254 to reduce the friction when the wire passes through the through slot 253.

[0056] As shown in Figures 2 to 3 , the paying-out assembly 24 comprises a rotating frame 241 and a paying-out disc 242. The two ends of the rotating frame 241 are rotationally connected with the mounting cylinder one 212 and the mounting cylinder two 252 respectively, and one end of the rotating frame 241 connected with the mounting cylinder two 252 is provided with a hole for the wire to pass through. The paying-out disc 242 is rotationally connected to the inside of the rotating frame 241 to pay out the wire.

[0057] When paying out the wire, one end of the wire is pulled out from the paying-out disc 242, and then the end of the wire is passed through the mounting cylinder two 252 into the through slot 253, and the wire end entering the through slot 253 continues to move forward and sequentially passes through the roller 254, the tensioning mechanism 40 and the mounting mechanism 30, and is twisted in the twisting frame 15.

[0058] As shown in Figures 1 to 4 and Figures 6 to 7 , the mounting mechanism 30 comprises a mounting disc 31 and a containing groove 32. The inside of the mounting disc 31 has a cavity, and the mounting disc 31 is located between the two movable frames 142 and in contact with the support wheel two 143. The containing groove 32 is multiple and equal in number to the number of the tensioning mechanism 40, and the multiple tensioning mechanisms 40 are respectively located in the multiple containing grooves 32. The multiple containing grooves 32 are arranged in a ring array at one end of the mounting disc 31 with the axis of the mounting disc 31 as the center, and the containing groove 32 is provided with a notch 33 at the bottom of the side opposite to the threading disc 26.

[0059] As shown in Figure 1 and Figure 6 , the tensioning mechanism 40 comprises a rotating assembly 41, a wire pressing assembly 42 and a pressing assembly 43. The rotating assembly 41 is arranged in the containing groove 32, the wire pressing assembly 42 is elastically and slidably arranged inside the rotating assembly 41 below, the pressing assembly 43 is elastically and slidably arranged inside the rotating assembly 41 above, and the wire pressing assembly 42 is connected with the pressing assembly 43.

[0060] As shown in Figures 6 to 10 , the rotating assembly 41 comprises a mounting frame 411, a rotating rod 412, a mounting rod 413, a mounting seat 414, a convex plate 416 and a limiting plate 417. The mounting frame 411 is U-shaped and mounted at the outer sides of the two ends of the mounting rod 413. The mounting seat 414 is rotatably connected to the outer middle part of the mounting rod 413 and mounted on the inner bottom wall of the containing groove 32. The two sides of the mounting seat 414 are both provided with a torsion spring one 415 connected with the inner wall of the mounting frame 411, the rotating rod 412 is rotatably connected to the inside of the mounting frame 411 above, the pressing assembly 43 is slidably arranged inside the mounting frame 411 above the rotating rod 412, and the wire pressing assembly 42 is slidably arranged inside the mounting frame 411 below.

[0061] The number of the convex plate 416 and the limiting plate 417 is both two, the two convex plates 416 are respectively mounted on the two sides of the mounting frame 411, and the two limiting plates 417 are respectively mounted on the two side edges of the mounting frame 411 above the convex plates 416, and the limiting plate 417 is L-shaped.

[0062] As shown in Figures 6 to 8As shown, the wire pressing assembly 42 comprises a movable plate 421, a wire passing groove 422, a wire pressing wheel 423, a slider 424, a connecting shaft 425 and a slide rod 426. The movable plate 421 is obliquely arranged inside the mounting frame 411, the wire passing groove 422 is arranged at one end of the movable plate 421, and the wire pressing wheel 423 is rotatably connected inside the wire passing groove 422.

[0063] The number of the slider 424, the connecting shaft 425 and the slide rod 426 is two. The two sliders 424 are respectively arranged at the bottom of the two sides of the movable plate 421, and the two sides of the bottom of the mounting frame 411 are respectively provided with grooves for the sliding of the sliders 424. The two connecting shafts 425 are respectively arranged at one side of the two sliders 424, and the connecting shafts 425 are arranged in the cavity of the mounting disc 31. The bottom ends of the two slide rods 426 are respectively arranged at the top of the two sliders 424, the top ends of the slide rods 426 penetrate the lug plate 416 and are connected with the pressing assembly 43, and the spring 427 is arranged between the slider 424 and the lug plate 416 to drive the movable plate 421 to reset.

[0064] When the wire is tensioned, the end of the wire is guided to pass through the wire passing groove 422 of the movable plate 421 and is in contact with the wire pressing wheel 423, then the pressing assembly 43 is pulled up and is prevented from resetting by the limiting plate 417, at this time, the end of the wire is passed between the rotating rod 412 and the pressing assembly 43, the wire between the guide disc 251 and the mounting disc 31 is in an inclined state, and finally the end of the wire is sequentially passed through the accommodating groove 32, the wire passing disc 26 and the stranding frame 15.

[0065] When the wire guiding is completed, the hydraulic cylinder 16 is started to drive the mounting disc 31 to move through the movable frame 142, and the mounting disc 31 drives the movable plate 421 to move through the mounting frame 411. In the process of moving, the movable plate 421 moves upward along the inclined direction of the wire, and at this time, the wire pressing wheel 423 can press the wire under the action of the spring 427.

[0066] As shown in the figure, Figures 6 to 10 The pressing assembly 43 comprises a pressing plate 431, a slider 432 and a limiting piece. The pressing plate 431 is slidably connected inside the mounting frame 411 and is located above the rotating rod 412, the bottom of the pressing plate 431 is provided with a recess for accommodating the wire, and a rubber pad is arranged in the recess of the pressing plate 431 to increase the resistance of the wire passing through the pressing plate 431. The number of the slider 432 and the limiting piece is two, the two sliders 432 are respectively arranged at the two sides of the pressing plate 431, the top of the two sides of the mounting frame 411 is respectively provided with a groove for the sliding of the slider 432, and the bottom of the slider 432 is fixed with the top end of the slide rod 426. The two limiting pieces are respectively arranged at one side of the two sliders 432, and the limiting pieces are matched with the limiting plate 417.

[0067] The limiting member comprises a fixed rod 433, a torsion spring 434 and a rotating plate 435. The fixed rod 433 is installed on one side of the sliding block 432, the rotating plate 435 is rotatably connected to one end of the fixed rod 433, and the torsion spring 434 is sleeved on the outside of the fixed rod 433 and is installed between the sliding block 432 and the rotating plate 435 to drive the rotating plate 435 to reset.

[0068] When guiding the wire through the mounting frame 411, the movable plate 421 is first pulled upward, at this time the movable plate 421 drives the pressing plate 431 to move upward through the slide rod 426 on the sliding block 424, when the pressing plate 431 moves upward, the rotating plate 435 is actuated to the limiting plate 417, at this time the rotating plate 435 can be prevented from resetting through the limiting plate 417, so as to prevent the pressing plate 431 from resetting, and the wire can pass through between the rotating rod 412 and the pressing plate 431. In the process of moving upward, the sliding block 424 also drives the connecting shaft 425 to move upward in the cavity of the mounting disc 31, so that the connecting shaft 425 is dislocated with the notch 33 on the mounting disc 31.

[0069] In the process of tensioning the wire, the mounting disc 31 is first moved, and the mounting disc 31 drives the movable plate 421 to move through the mounting frame 411. In the process of moving, the wire pressing wheel 423 moves along the inclined direction of the wire, so as to press the wire tightly. In the process of pressing the wire, the movable plate 421 drives the pressing plate 431 on the slide rod 426 to continue to move upward through the sliding block 424, and at the same time the pressing plate 431 drives the rotating plate 435 to move out of the limiting plate 417 through the sliding block 432. When the rotating plate 435 is separated from the limiting plate 417, the rotating plate 435 can be reset under the action of the torsion spring 434, so that the rotating plate 435 is turned to a horizontal state.

[0070] When the end of the wire is separated from the wire releasing disc 242, the movable plate 421 can be reset under the action of the spring 427, and at the same time the movable plate 421 drives the pressing plate 431 on the slide rod 426 to reset through the sliding block 424, so as to clamp the wire between the pressing plate 431 and the rotating rod 412. In the process of resetting, the sliding block 424 also drives the connecting shaft 425 to move downward, so that the connecting shaft 425 corresponds to the notch 33 on the mounting disc 31. With the continuous movement of the wire, the wire can pull the mounting frame 411 to rotate around the mounting rod 413 and approach the threading disc 26 under the action of the wire and the pressing plate 431, and at the same time the wire can be tensioned under the action of the torsion spring 415. When the mounting frame 411 approaches the threading disc 26, the distance of the wire passing through the mounting frame 411 into the threading disc 26 is shortened, so that the wire can be more smoothly threaded into the threading disc 26, and the friction between the wire and the outside is reduced.

[0071] Working principle: before the wire is twisted, first pull the wire from the reel 242, then make the wire end through the installation cylinder 252 into the through slot 253, the wire end entering the through slot 253 continues to move forward and passes through the roller 254, the movable plate 421, the accommodating groove 32 and the threading disc 26 in turn, and finally passes out from the twisting frame 15. When the wire passes through the accommodating groove 32, first pull up the movable plate 421, at this time the movable plate 421 drives the pressing plate 431 to move up through the slide rod 426 on the slide block one 424, when the pressing plate 431 moves up, the rotating plate 435 is actuated to the limiting plate 417, at this time the rotating plate 435 can be prevented from resetting through the limiting plate 417, so as to prevent the pressing plate 431 from resetting, so as to facilitate the wire to pass through between the rotating rod 412 and the pressing plate 431. In the process of moving up, the slide block one 424 also drives the connecting shaft 425 to move up in the cavity of the mounting disc 31, so that the connecting shaft 425 is out of position with the notch 33 on the mounting disc 31.

[0072] Then, start the hydraulic cylinder 16, the hydraulic cylinder 16 drives the mounting disc 31 to move through the movable frame 142, and the mounting disc 31 drives the movable plate 421 to move through the mounting frame 411. In the process of moving, the wire pressing wheel 423 moves along the inclined direction of the wire, so as to press the wire tightly. In the process of pressing the wire, the movable plate 421 drives the pressing plate 431 on the slide rod 426 to continue to move up through the slide block one 424, and at the same time the pressing plate 431 drives the rotating plate 435 to move out of the limiting plate 417 through the slide block two 432. When the rotating plate 435 is separated from the limiting plate 417, under the action of the torsional spring two 434, the rotating plate 435 can be reset, so that the rotating plate 435 turns to the horizontal state. At this time, start the motor 221, and begin to twist the wire.

[0073] When the end of the wire is separated from the reel 242, under the action of the spring 427, the movable plate 421 can be reset, and at the same time the movable plate 421 drives the pressing plate 431 on the slide rod 426 to reset through the slide block one 424, so as to clamp the wire between the pressing plate 431 and the rotating rod 412. In the process of resetting, the slide block one 424 also drives the connecting shaft 425 to move down, so that the connecting shaft 425 corresponds to the notch 33 on the mounting disc 31. With the continuous movement of the wire, under the action of the wire and the pressing plate 431, the mounting frame 411 can be pulled to rotate around the mounting rod 413 and close to the threading disc 26, and at the same time the wire can be tensioned under the action of the torsional spring one 415. When the mounting frame 411 approaches the threading disc 26, the distance of the wire passing through the mounting frame 411 into the threading disc 26 is shortened, so that the wire can pass into the threading disc 26 more smoothly, reducing the friction between the wire and the outside world.

[0074] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A cable stranding machine comprising a chassis, characterized in that, The chassis is provided with a twisting mechanism, a mounting mechanism is slidably connected to the twisting mechanism, and a plurality of tensioning mechanisms for tensioning the wire are arranged on the mounting mechanism; The tensioning mechanism comprises a rotating assembly arranged in the mounting mechanism, a wire pressing assembly elastically and slidably arranged below the rotating assembly, and a pressing assembly elastically and slidably arranged above the rotating assembly, and the wire pressing assembly is connected with the pressing assembly; The rotating assembly comprises a mounting seat mounted on the mounting mechanism, a mounting frame rotatably connected to the mounting seat, and a rotating rod rotatably connected to the mounting frame, and the pressing assembly is located above the rotating rod; The wire pressing assembly comprises an active plate elastically and slidably connected in the mounting frame, a wire passing groove arranged at the end of the active plate, a wire pressing wheel rotatably connected in the wire passing groove, and slide rods mounted on both sides of the active plate, the active plate is arranged obliquely in the mounting frame, the slide rods are connected with the pressing assembly to press the wire, and the active plate is arranged obliquely in the mounting frame. The mounting mechanism comprises a mounting disc slidably connected to the twisting mechanism and a containing groove arranged on the mounting disc, the mounting disc has a cavity inside, the mounting seat is mounted on the inner bottom wall of the containing groove, and a notch is arranged on the bottom of one side of the containing groove. The wire pressing assembly further comprises slide blocks one mounted on the bottom of both sides of the active plate and a connecting shaft mounted on the slide blocks one, the bottom of both sides of the mounting frame is provided with a groove for sliding of the slide blocks one, and the connecting shaft is located in the cavity of the mounting disc; the bottom ends of the two slide rods are respectively mounted on the top of the two slide blocks one, the mounting frame is respectively provided with a lug plate on both sides, and a spring is arranged between the slide blocks one and the lug plate; The pressing assembly comprises a pressing plate slidably connected above the inside of the mounting frame, slide blocks two mounted on both sides of the pressing plate, and a limiting piece mounted on the slide blocks two, the pressing plate is provided with a recess for accommodating the wire, a rubber pad is arranged in the recess of the pressing plate, and the slide blocks two are fixed with the slide rods; The limiting piece comprises a fixed rod, a torsion spring two, and a rotating plate, the fixed rod is mounted on the slide blocks two, the rotating plate is rotatably connected to the fixed rod, and the torsion spring two is mounted between the slide blocks two and the rotating plate to drive the rotating plate to reset; A torsion spring one is arranged between the mounting seat and the inner wall of the mounting frame, the mounting frame is in the shape of U, the mounting frame is respectively provided with a limiting plate in the shape of L on both side edges, and the rotating plate is matched with the limiting plate; When the mounting disc is driven to move, the mounting disc drives the active plate to move through the mounting frame.

2. The cable stranding machine of claim 1, wherein, The twisting mechanism comprises a rotating assembly, a driving assembly, a connecting rod, a guide assembly, a threading disc, and a plurality of pay-off assemblies, the rotating assembly is rotatably connected to the chassis, the driving assembly is mounted on the chassis, one end of the connecting rod is mounted on the driving assembly, the other end of the connecting rod penetrates the rotating assembly, the guide assembly, and the mounting disc in sequence and is connected with the threading disc, the rotating assembly and the guide assembly are fixed with the connecting rod, the mounting disc is slidably connected with the connecting rod, and the plurality of pay-off assemblies are arranged in an annular array between the rotating assembly and the guide assembly.

3. A cable stranding machine according to claim 2, characterised in that, The rotating assembly comprises a rotating disc and a plurality of connecting barrels, the rotating disc is mounted on the connecting rod, the number of the connecting barrels is the same as that of the pay-off assemblies, and the connecting barrels are mounted at one end edge position of the rotating disc.

4. A cable stranding machine according to claim 3, characterised in that, The guiding assembly comprises a guiding disc and a plurality of installation cylinders II, the guiding disc is installed on the connecting rod, the number of the installation cylinders II is same as that of the installation cylinders I, the plurality of installation cylinders II are installed at the edge position of one end of the guiding disc, and the pay-off assembly is rotationally connected between the installation cylinders I and the installation cylinders II.

5. A cable stranding machine according to claim 4, characterised in that, A through groove corresponding to the installation cylinders II is formed in the guiding disc, and two symmetrically arranged rollers are rotationally connected in the through groove.

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