CN214279681U

CN214279681U - Cable pair twister with good processing effect

Info

Publication number: CN214279681U
Application number: CN202120422265.6U
Authority: CN
Inventors: 谢帮清; 江平; 王勇
Original assignee: Tongying Electronics Shenzhen Co Ltd
Current assignee: Tongying Electronics Shenzhen Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-09-24
Anticipated expiration: 2031-02-25

Abstract

The application relates to a cable pair twister with good processing effect, which comprises a case, wherein the case is provided with a wire inlet cylinder and a wire outlet cylinder, a bearing bracket is arranged in the case, an arc-shaped guide rail is fixedly arranged between the wire inlet cylinder and the wire outlet cylinder, the case is provided with a driving device, the bearing bracket is rotationally connected with a wire releasing wheel, the bearing bracket is provided with a tensioning wheel set, the tensioning wheel set comprises a first steering wheel, an upper tensioning wheel, a lower tensioning wheel and a second steering wheel, the bearing bracket is rotationally connected with a connecting rod, the connecting rod is slidably connected with a pressing block, a wire I enters the case from the wire inlet cylinder and enters the wire outlet cylinder along the arc-shaped guide rail, a wire II enters the wire outlet cylinder from the wire releasing wheel through the tensioning wheel set, the driving device drives the arc-shaped guide rail to rotate, the bearing bracket rotates relative to the wire inlet cylinder and the wire outlet cylinder under the action of gravity, the two wires are twisted in pair in the wire outlet cylinder, and the lower tensioning wheel automatically tensions the wire under the action of gravity, avoid the wire rod to relax, this application has the effect of effectively improving the transposition quality between the wire rod.

Description

Cable pair twister with good processing effect

Technical Field

The application relates to the field of cable processing equipment, in particular to a cable pair twister with a good processing effect.

Background

At present, the cable is generally formed by twisting several or several groups of wires, wherein each group of wires are insulated from each other, and the whole cable is covered by a high-insulation covering layer. The electrical equipment needs to be controlled and information transmission of the electrical equipment is completed by simultaneous and interactive work of multiple signals. In production, a plurality of wire cores are twisted together to form the multi-core cable, so that the total volume of the cable can be reduced, the occupied space of the cable can be reduced, the material consumption is reduced, and the production cost is reduced.

The related art can refer to chinese patent with publication number CN207165303U and discloses a novel cable bow winch, which comprises a base, and a motor mounted on the base, a paying-off unit, a support and a ground shaft, wherein a plurality of paying-off units are sequentially connected in series, each paying-off unit comprises a paying-off wheel, a cradle and a bow band, two ends of the bow band are respectively fixed with a central tube, each central tube is respectively rotatably supported on the support, two ends of the cradle are respectively rotatably connected to the tail end of the central tube, two ends of the paying-off wheel are rotatably connected to the cradle, the axial direction of the paying-off wheel is perpendicular to the axial direction of the central tube, a cavity is formed in the axial direction of the central tube, a through hole communicated with the cavity is formed in the side wall of the central tube, an electric wire between adjacent bow bands penetrates through the through hole and the cavity through a guide wheel, the motor acts on the ground shaft and can drive the rotation, and the ground shaft is in transmission connection with the central tube. This novel electric wire between adjacent unwrapping wire unit walks the line through the inside of rotatable center tube, on the one hand plays the safety protection effect to the electric wire, and on the other hand electric wire occupation space is little.

In view of the above-mentioned related technologies, the inventor believes that, when the cable bow winch is used, the position where the wire rod is separated from the pay-off wheel is different, so that the wire rod paid off by the pay-off wheel is easy to loosen, and the twisting degree between the wire rod of the pay-off wheel and the wire rod of the guide wheel is not high enough, which affects the twisting quality of the cable.

SUMMERY OF THE UTILITY MODEL

In order to improve the quality of wire rod transposition, this application provides a cable pair twister that processing effect is good.

The application provides a cable pair twister that processing effect is good adopts following technical scheme:

a cable pair twister with good processing effect comprises a case, wherein the case is hinged with a safety door, one side of the case is rotatably connected with a wire inlet cylinder, one end of the case, which is far away from the wire inlet cylinder, is rotatably connected with a wire outlet cylinder, a bearing bracket is rotatably connected between the wire inlet cylinder and the wire outlet cylinder, two arc-shaped guide rails are fixedly arranged between the wire inlet cylinder and the wire outlet cylinder, wire feeding holes are respectively formed in the wire inlet cylinder and the wire outlet cylinder, the case is provided with a driving device for driving the wire inlet cylinder and the wire outlet cylinder to rotate, the bearing bracket is fixedly provided with a vertical bearing plate, a bearing shaft is fixedly provided with a bearing shaft, the bearing shaft is rotatably connected with a wire releasing wheel, a tensioning wheel set is arranged between the bearing plate and the wire outlet cylinder, the tensioning wheel set comprises a first steering wheel, an upper tensioning wheel, a lower tensioning wheel and a second steering wheel, the first steering wheel, the second steering wheel and the upper tensioning wheel are rotatably connected with the bearing plate, the bearing plate is rotatably connected with a connecting rod, and a pressing block is rotatably connected on the connecting rod, the lower tension wheel is rotationally connected with the connecting rod.

By adopting the technical scheme, the first wire enters the case from the wire inlet cylinder and enters the wire outlet cylinder along the arc-shaped guide rail, the second wire enters the wire outlet cylinder from the wire outlet wheel sequentially through the first steering wheel, the upper tensioning wheel, the lower tensioning wheel and the second steering wheel, and the lower tensioning wheel automatically tensions the wire under the action of gravity, so that the wire is prevented from being loosened; set up the briquetting, convenient to use person carries out the counter weight to take-up pulley down, has improved the many suitability of tensioning wheelset, and drive arrangement drives an inlet wire section of thick bamboo and a line outgoing section of thick bamboo and rotates, drives the wire rod rotation on arc guide rail and the arc guide rail, and the support bracket takes place relative rotation with an inlet wire section of thick bamboo and a line outgoing section of thick bamboo under the action of gravity, realizes that two kinds of wires are in the same place to the transposition in a line outgoing section of thick bamboo, has effectively improved the quality of transposition between the wire rod.

Optionally, the supporting plate is rotatably connected with a horizontal correcting roller, and the diameter of the correcting roller gradually increases towards the middle of the two ends.

Through adopting above-mentioned technical scheme, set up the correction roller, be convenient for rectify the wire rod of rolling up in the actinobacillus wheel different positions, make the wire rod remove smoothly to first directive wheel, and then by the tensioning, improve the quality of wire rod transposition.

Optionally, the driving device comprises a driving motor and a rotating shaft, the rotating shaft is connected with the case in a rotating mode, an output shaft of the driving motor is fixedly connected with the rotating shaft, the incoming line cylinder and the outgoing line cylinder are fixedly provided with a driven wheel, the driven wheel is connected with a synchronous belt, the synchronous belt is connected with a driving wheel, and the driving wheel is fixedly connected with the rotating shaft.

Through adopting above-mentioned technical scheme, driving motor drives axis of rotation and two action wheels and rotates, drives the inlet wire section of thick bamboo through the hold-in range and from the driving wheel and rotates with the outlet wire section of thick bamboo synchronization, realizes the pair twist of two kinds of wires, simple structure convenient operation.

Optionally, one side of the arc-shaped guide rail, which deviates from the paying-off wheel, is fixedly provided with two parallel baffles, and a plurality of rollers are rotatably connected between the two baffles of the same arc-shaped guide rail.

By adopting the technical scheme, the baffle is arranged to limit the wire rods, so that the wire rods are prevented from being separated from the arc-shaped guide rails from two sides, and the processing stability is improved; the roller is arranged to reduce abrasion of the arc-shaped guide rail to the wire rod, so that the service life of the wire rod is guaranteed.

Optionally, one side of the supporting plate close to the lower tensioning wheel is fixedly provided with two limiting blocks, and the two limiting blocks are respectively located above and below the connecting rod.

Through adopting above-mentioned technical scheme, set up the stopper and carry on spacingly to take-up pulley down, the moving range of take-up pulley under the restriction has ensured the tensioning effect of take-up pulley pair wire rod down, and then improves the quality of wire rod transposition.

Optionally, one end of the bearing shaft, which is away from the bearing plate, is connected with a limit nut through a thread.

Through adopting above-mentioned technical scheme, stop nut carries on spacingly to the actinobacillus wheel, avoids the actinobacillus wheel to break away from bearing axle and influences processing, has improved the stability of processing, and stop nut convenient to detach, is convenient for change actinobacillus wheel, simple structure convenient operation.

Optionally, the wire inlet cylinder and the wire outlet cylinder are both rotatably connected with guide wheels.

Through adopting above-mentioned technical scheme, set up the guide pulley, reduce the wearing and tearing of inlet wire section of thick bamboo and outlet wire section of thick bamboo to the wire rod, ensured the life of wire rod.

Optionally, the emergency exit is provided with an observation window.

By adopting the technical scheme, the observation window is arranged, so that a user can monitor the operation condition in the case in real time, and the normal operation of processing is facilitated.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the tensioning wheel set, the lower tensioning wheel automatically tensions the wire under the action of gravity, so that the wire is prevented from being loosened; the pressing block is arranged, so that a user can balance the lower tensioning wheel conveniently, the multiple applicability of the tensioning wheel set is improved, and the quality of twisting between wires is effectively improved;

2. the correction rollers are arranged, so that the wires wound on different positions of the pay-off wheel can be corrected conveniently, the wires can move to the first steering wheel smoothly and are tensioned, and the twisting quality of the wires is improved;

3. through setting up the stopper, carry on spacingly to take-up pulley down, the moving range of take-up pulley under the restriction has ensured the tensioning effect of take-up pulley pair wire rod down, and then improves the quality of wire rod transposition.

Drawings

Fig. 1 is a schematic view of the overall structure of a cable pair twister with good processing effect.

Fig. 2 is a schematic view for highlighting the positions of the wiring holes and the guide wheels.

Fig. 3 is intended to highlight the structural schematic of the arcuate guide.

Fig. 4 is intended to highlight the structural schematic of the tensioning wheel set.

Description of reference numerals: 1. a chassis; 11. a safety door; 111. an observation window; 2. a wire inlet tube; 3. an outlet barrel; 4. a support bracket; 5. an arc-shaped guide rail; 6. a wiring hole; 7. a drive device; 41. a support plate; 411. a bearing shaft; 42. a paying-off wheel; 43. a tension pulley set; 431. a first steering wheel; 432. an upper tension wheel; 433. a lower tension wheel; 434. a second steering wheel; 412. a connecting rod; 413. briquetting; 414. a correcting roller; 71. a drive motor; 72. a rotating shaft; 73. a driven wheel; 74. a driving wheel; 75. a synchronous belt; 51. a baffle plate; 52. a drum; 415. a limiting block; 4111. a limit nut; 8. and (4) a guide wheel.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses cable pair twister that processing effect is good.

Referring to fig. 1, the cable pair twister with good processing effect comprises a case 1, wherein the case 1 is rectangular, is made of stainless steel with high hardness and bearing capacity, is not easy to rust and has long service life. The case 1 is hinged with a safety door 11, and a user can open the safety door 11 along the hinged position to operate the interior of the case 1, so that the maintenance and the replacement of internal components are facilitated; rectangular observation window 111 has been seted up to emergency exit 11, and observation window 111 installs transparent glass, and the usable observation window 111 of user carries out real time monitoring to the operating condition of machine case 1 inside, needn't frequently open emergency exit 11, when playing the guard action to machine case 1 inside, ensures the normal operating of machine.

Referring to fig. 1 and 2, a wire inlet cylinder 2 is mounted on one side of a case 1, the wire inlet cylinder 2 is rotatably connected with the case 1, when a cable strander runs, a wire enters the case 1 through the wire inlet cylinder 2, one end of the case 1, which is far away from the wire inlet cylinder 2, is rotatably connected with a wire outlet cylinder 3, the wire outlet cylinder 3 is coaxially mounted with the wire inlet cylinder 2, the wire I passes through the wire outlet cylinder 3 and is separated from the case 1, the wire inlet cylinder 2 and the wire outlet cylinder 3 are both provided with wire outlet holes 6, the wire I is separated from the wire inlet cylinder 2 from the wire outlet cylinder 6 of the wire inlet cylinder 2, two arc-shaped guide rails 5 are fixedly mounted between the wire inlet cylinder 2 and the wire outlet cylinder 3, and the wire I enters the wire outlet cylinder 3 from the wire outlet holes 6 of the wire outlet cylinder 3 along the arc-shaped guide rails 5; the wire feeding holes 6 of the wire feeding cylinder 2 and the wire outlet cylinder 3 are respectively and rotatably connected with a guide wheel 8, a first wire enters the arc-shaped guide rail 5 through the guide wheel 8 at the wire feeding hole 6, and the first wire drives the guide wheel 8 to rotate, so that the abrasion of the first wire at the wire feeding hole 6 is reduced, and the service life of the first wire is prolonged.

Referring to fig. 3, two parallel baffles 51 are fixedly mounted on the sides of the two arc-shaped guide rails 5 away from each other, a first wire passes through the two baffles 51 of the same arc-shaped guide rail 5, and the first wire is blocked by the baffles 51 and cannot be separated from the arc-shaped guide rails 5 from the two sides; rotate between two baffles 51 of same root arc guide 5 and be connected with a plurality of cylinders 52, baffle 51 deviates from arc guide 5's one end relative cylinder 52 higher, and the wire rod passes through from cylinder 52 top, drives cylinder 52 and rotates, makes the wearing and tearing that the in-process that the wire rod one received through arc guide 5 less.

Referring to fig. 1, a driving device 7 is installed at the lower end of a case 1, a user drives a wire inlet tube 2 and a wire outlet tube 3 to rotate by using the driving device 7, two arc-shaped guide rails 5 and a wire rod I rotate synchronously along with the wire inlet tube 2 and the wire outlet tube 3, the driving device 7 comprises a driving motor 71 and a rotating shaft 72, the rotating shaft 72 is rotatably connected with the lower end of the case 1, when one of the arc-shaped guide rails 5 is at the lowest position, the arc-shaped guide rail 5 is still positioned above the rotating shaft 72, and the rotating shaft 72 does not interfere with the rotation of the arc-shaped guide rail 5; the driving motor 71 is installed outside the chassis 1, an output shaft of the driving motor 71 is fixedly connected with the rotating shaft 72, a user starts the driving motor 71, the rotating shaft 72 can be driven to rotate, two driving wheels 74 are fixedly installed at two ends of the rotating shaft 72 along the length direction, the driving wheels 74 rotate synchronously along with the rotating shaft 72, driven wheels 73 are fixedly installed on the wire inlet barrel 2 and the wire outlet barrel 3, the driven wheels 73 of the wire inlet barrel 2 and the wire outlet barrel 3 are respectively located right above the driving wheels 74 at two ends of the rotating shaft 72 and are connected with synchronous belts 75, and the driving wheels 74 rotate to drive the wire inlet barrel 2, the wire outlet barrel 3 and the two arc-shaped guide rails 5 to rotate synchronously through the synchronous belts 75 and the driven wheels 73.

Referring to fig. 1, a support bracket 4 is installed between a wire inlet barrel 2 and a wire outlet barrel 3, the support bracket 4 is located between two arc-shaped guide rails 5, the lower end of the support bracket 4 is made of a solid metal block, the weight is relatively large, the support bracket 4 is close to two ends of the wire inlet barrel 2 and the wire outlet barrel 3 and is fixedly connected with a connecting part, the connecting part is respectively connected with the wire inlet barrel 2 and the wire outlet barrel 3 in a rotating manner, when a user starts a driving motor 71 to drive the wire inlet barrel 2 and the wire outlet barrel 3 to rotate, the support bracket 4, the wire inlet barrel 2 and the wire outlet barrel 3 rotate relatively and do not rotate along with the wire inlet barrel 2 and the wire outlet barrel 3 under the action of gravity; the connecting portion are equipped with the oil filler point, and the user utilizes the oil filler point to pour into lubricating oil into to the connecting portion in regular time, reduces the friction of connecting portion and inlet wire section of thick bamboo 2 and outlet wire section of thick bamboo 3, avoids support bracket 4 to follow inlet wire section of thick bamboo 2 and outlet wire section of thick bamboo 3 synchronous revolution.

Referring to fig. 1, a vertical bearing plate 41 is fixedly installed at the upper end of the bearing bracket 4, the bearing plate 41 is in an "L" shape, a bearing shaft 411 is fixedly installed on the bearing plate 41, the bearing shaft 411 is installed along the width direction of the bearing bracket 4, the bearing shaft 411 is rotatably connected with a pay-off reel 42 wound with a second wire, the inner diameter of the pay-off reel 42 is slightly larger than the diameter of the bearing shaft 411, and the pay-off reel 42 can rotate on the bearing shaft 411; a limiting nut 4111 is connected to one end, away from the supporting plate 41, of the supporting shaft 411 through a thread, in the running process of the stranding machine, a user limits the paying-off wheel 42 through the limiting nut 4111, the rotation of the paying-off wheel 42 is not affected, the paying-off wheel 42 is prevented from being separated from the supporting shaft 411, when the paying-off wheel 42 needs to be replaced, the user unscrews the limiting nut 4111, and the limiting nut 4111 is screwed up after the paying-off wheel 42 is replaced; the supporting plate 41 is rotatably connected with a horizontal correcting roller 414, the correcting roller 414 is installed in parallel with the supporting shaft 411, the height of the correcting roller 414 is slightly higher than that of the pay-off wheel 42, the second wire rod is wound above the correcting roller 414 from the pay-off wheel 42, the diameter of the middle of the correcting roller 414 is gradually increased towards two ends, the positions of the second wire rod wound on the pay-off wheel 42 are different, and when passing through the correcting roller 414, the second wire rod slides towards the middle of the correcting roller 414 to correct the position of the second wire rod.

Referring to fig. 1 and 4, a tension pulley set 43 is installed between the support plate 41 and the outlet tube 3, the tension pulley set 43 includes a first turning pulley 431, an upper tension pulley 432, a lower tension pulley 433 and a second turning pulley 434, a second wire detached from the correcting roller 414 moves downward at the first turning pulley 431, moves above the upper tension pulley 432 around below the lower tension pulley 433, the upper tension pulley 432 and the lower tension pulley 433 are both provided with three grooves, the second wire sequentially bypasses three grooves and then bypasses below the second turning pulley 434 to enter the outlet tube 3, the first turning pulley 431, the second turning pulley 434 and the upper tension pulley 432 are all rotatably connected with the support plate 41, the second wire drives the first turning pulley 431, the second turning pulley 434 and the upper tension pulley 432 to rotate, the abrasion is small in the process, the support plate 41 is provided with a connecting rod 412, one end of the connecting rod 412 is rotatably connected with the support plate 41, and the other end is rotatably connected with the lower tension pulley 433, when the second wire rod is loosened, the lower tensioning wheel 433 drives the connecting rod 412 to rotate under the action of gravity, the distance between the lower tensioning wheel 433 and the upper tensioning wheel 432 is lengthened, and the second wire rod is tensioned.

Referring to fig. 1 and 4, the connecting rod 412 is slidably connected with a pressing block 413, the pressing block 413 is made of a solid metal material, so that the weight is large, when a user manually slides the pressing block 413 to the lower tensioning wheel 433, the tensioning capacity of the lower tensioning wheel 433 on the second wire rod can be increased, and the device is suitable for the second wire rod with high strength; when the strength of the second wire rod is not high, the tensioning capacity of the lower tensioning wheel 433 is weakened when the user slides the pressing block 413 to move in the direction away from the lower tensioning wheel 433, and the user adjusts the positions of the two pairs of pressing blocks 413 according to different wire rods; lower take-up pulley 433 rotates with connecting rod 412 to be connected, and take-up pulley 433 rotates under the wire rod two can drive, reduces the wearing and tearing of take-up pulley 433 to wire rod two down.

Referring to fig. 1 and 4, when the rotation angle of the connecting rod 412 is too large, the lower tensioning wheel 433 is prone to losing the tensioning capacity of the second wire rod, two limiting blocks 415 are fixedly installed on one side of the supporting plate 41 close to the lower tensioning wheel 433, and the limiting blocks 415 are cylindrical and made of rubber materials, so that abrasion caused by collision between the connecting rod 412 and the limiting blocks 415 is reduced; the two limiting blocks 415 are respectively located above and below the connecting rod 412 to respectively limit the vertical rotation angle of the connecting rod 412, so that the lower tensioning wheel 433 keeps an effective tensioning position for the second wire rod, and the twisting quality between the first wire rod and the second wire rod is improved.

The implementation principle of the cable pair twister that this application embodiment processing effect is good does: the user starts the driving motor 71 to drive the rotating shaft 72 and the driving wheel 74 to rotate, the synchronous rotation of the wire inlet barrel 2, the wire outlet barrel 3 and the two arc-shaped guide rails 5 is driven by the synchronous belt 75 and the driven wheel 73, the first wire rod rotates synchronously with the arc-shaped guide rails 5, the second wire rod winds above the correcting roller 414 from the wire releasing wheel 42 and slides to the middle position of the correcting roller 414 to correct the position of the second wire rod, the second wire rod moves downwards at the first steering wheel 431 and moves to the upper part of the upper tensioning wheel 432 by bypassing the lower part of the lower tensioning wheel 433, the upper tensioning wheel 432 and the lower tensioning wheel 433 are both provided with three grooves, the second wire rod bypasses the lower part of the second steering wheel 434 after sequentially bypassing the three grooves and enters the wire outlet barrel 3, the first wire rod is twisted with the second wire rod in the wire outlet barrel 3, when the second wire rod relaxes, the lower tensioning wheel 433 drives the connecting rod 412 to rotate under the action of gravity, and lengthens the distance between the lower tensioning wheel 433 and the upper tensioning wheel 432, and tensioning the second wire rod to improve the twisting quality between the first wire rod and the second wire rod.

Claims

1. The utility model provides a effectual cable pair twister of processing, includes quick-witted case (1), its characterized in that: the safety door is hinged to the case (1), one side of the case (1) is rotatably connected with a wire inlet cylinder (2), one end, deviating from the wire inlet cylinder (2), of the case (1) is rotatably connected with a wire outlet cylinder (3), a bearing bracket (4) is rotatably connected between the wire inlet cylinder (2) and the wire outlet cylinder (3), two arc-shaped guide rails (5) are fixedly arranged between the wire inlet cylinder (2) and the wire outlet cylinder (3), wire feeding holes (6) are formed in the wire inlet cylinder (2) and the wire outlet cylinder (3), the case (1) is provided with a driving device (7) for driving the wire inlet cylinder (2) and the wire outlet cylinder (3) to rotate, a vertical bearing plate (41) is fixedly arranged on the bearing bracket (4), a bearing shaft (411) is fixedly arranged on the bearing plate (41), a paying-off wheel (42) is rotatably connected with the bearing shaft (411), a tensioning wheel set (43) is arranged between the bearing plate (41) and the wire outlet cylinder (3), and the tensioning wheel set (43) comprises a first steering wheel (431), The device comprises an upper tensioning wheel (432), a lower tensioning wheel (433) and a second steering wheel (434), wherein the first steering wheel (431), the second steering wheel (434) and the upper tensioning wheel (432) are rotatably connected with a bearing plate (41), the bearing plate (41) is rotatably connected with a connecting rod (412), a pressing block (413) is slidably connected onto the connecting rod (412), and the lower tensioning wheel (433) is rotatably connected with the connecting rod (412).

2. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: the bearing plate (41) is rotatably connected with a horizontal correcting roller (414), and the diameter of the correcting roller (414) gradually increases towards the middle part of the bearing plate.

3. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: drive arrangement (7) include driving motor (71) and axis of rotation (72), and axis of rotation (72) rotate with quick-witted case (1) to be connected, driving motor (71) output shaft and axis of rotation (72) fixed connection, and inlet wire section of thick bamboo (2) all have set firmly from driving wheel (73) with outlet wire section of thick bamboo (3), all are connected with hold-in range (75) from driving wheel (73), and hold-in range (75) all are connected with action wheel (74), action wheel (74) all with axis of rotation (72) fixed connection.

4. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: one side of the arc-shaped guide rail (5) deviating from the paying-off wheel (42) is fixedly provided with two parallel baffles (51), and a plurality of rollers (52) are rotatably connected between the two baffles (51) of the same arc-shaped guide rail (5).

5. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: two limiting blocks (415) are fixedly arranged on one side, close to the lower tensioning wheel (433), of the supporting plate (41), and the two limiting blocks (415) are respectively located above and below the connecting rod (412).

6. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: and one end of the bearing shaft (411) deviating from the bearing plate (41) is in threaded connection with a limit nut (4111).

7. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: the wire inlet cylinder (2) and the wire outlet cylinder (3) are both rotatably connected with guide wheels (8).

8. The pair twisting machine for cables with good processing effect according to claim 1, characterized in that: the safety door (11) is provided with an observation window (111).