CN219393034U

CN219393034U - Intermittent twisting device for cable manufacture

Info

Publication number: CN219393034U
Application number: CN202222485236.1U
Authority: CN
Inventors: 徐升
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-07-21
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to a twisting device for multi-strand single wires in a cable, in particular to an intermittent twisting device for manufacturing the cable, which is characterized in that: the stranding device is arranged between the front doubling die and the rear doubling die, a section of multi-strand wires with set lengths are drawn for static fixation each time, SZ stranding is carried out in a static fixation state, and the next section of wires are drawn after stranding until stranding of all wires is completed. The utility model has the advantages that: the static intermittent twisting replaces dynamic continuous twisting, the traditional process that a twisting cage with high weight or a paying-off device is required to be utilized to rotate in the prior art is broken through, the structure and the operation are simplified, only small equipment rotational inertia is required, the production safety is improved, the wire storage quantity of the paying-off device is improved, the requirement of longer twisting length is provided, the equipment cost and the energy consumption cost are greatly saved, and the power energy is effectively saved.

Description

Intermittent twisting device for cable manufacture

Technical Field

The utility model relates to a twisting device for multi-strand single wires in a cable, in particular to an intermittent twisting device for manufacturing the cable.

Background

In the prior art, a large-sized stranding cage device such as a tube strander, a frame strander, a cage strander and a coil strander is generally used for stranding multi-strand wires (or cable cores wrapped with insulating layers or non-wrapped conductor single wires), wherein the tube strander, the frame strander and the cage strander are sequentially arranged on a strander by adopting a plurality of pay-off reels as reels of single wires, the multi-strand wires are stranded along the rotation pay-off reels and the rotation of the strander, for example, a process structure diagram of the cage strander stranding is shown in fig. 1, the cage strander comprises a strander bracket 21 and a strander rotating shaft 22, a plurality of pay-off reels 1 are arranged on the strander bracket 21, the wires 2 on each pay-off reel 1 are all spread along the rotating shaft direction of the strander along the same direction after being combined, the stranded cable cores 13 are transmitted to a winding machine 7 through a doubling die 6 for winding, and finally, a wire is pulled and wound by a traction machine 12 and a winding machine 14 sequentially. The disc winch performs twisting by rotating the whole wire collecting device, and the weight of the disc winch can reach tens of tons, so that the rotating speed is very low.

The stranding process is completed by driving the multi-strand wires to twist unidirectionally based on the rotation of the stranding cage with the pay-off reel, and the whole stranding process needs to be continuously matched with the stranding cage and the pay-off reel in a rotating manner, so that continuous and dynamic transmission, twisting and wire winding are formed. However, this continuous stranding process has the following disadvantages: firstly, a twisting cage serving as twisting equipment is large-sized and heavy equipment, has a complex structure, is inconvenient to operate and is complicated to install, secondly, the large-sized twisting cage and a paying-off reel can generate larger rotational inertia when continuously rotating, and certain safety risks exist, so that the rotational speed is greatly limited, particularly a disc twisting machine, and the production efficiency is low; thirdly, the pay-off reels mounted on the stranding cages are limited by the stranding cage mounting and the moment of inertia, and the wire reserves on each pay-off reel are limited, so that the stranding length is limited.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the intermittent stranding device for manufacturing the cable, which has the advantages of simple structure, convenient operation, reduced safety risk and avoidance of limitation of the reserve and the stranding length of a paying-off device.

The utility model is realized by the following ways:

a intermittent type formula hank system device for cable preparation, including pay-off, tension wire storage frame, sticiss device and the receipts line draw gear of order arrangement, its structural feature lies in: the wire laying device comprises a circular support, a driving device and twisting chucks, wherein the driving device and the twisting chucks are arranged on the circular support, one end of each twisting chuck is arranged on the circular support, the other end of each twisting chuck is a clamping port, at least two groups of twisting chucks are arranged, clamping points of a plurality of groups of twisting chucks can be positioned at the central axis point of the inner ring of the circular support when the wires are clamped, the circular support synchronously rotates with a motor through a synchronous belt, and all twisting chucks are driven to rotate by taking the wires clamped by the twisting chucks as the center;

and drawing out the multi-strand wires with set length from the paying-off device, sequentially passing through the tension wire storage frame and the front doubling mold, bunching the multi-strand wires by the front doubling mold, passing through a loose clamping opening of a stranding chuck and an inner ring space of the annular bracket, fixing the multi-strand wires by the rear doubling mold, stranding the multi-strand wires between the front doubling mold and the rear doubling mold, processing the stranded conductors by the compacting device, and guiding the stranded conductors to the wire collecting traction device.

The working flow of the utility model is as follows:

the two ends of the multi-strand wire with the set length are an end A and an end B, which correspond to the binding fixed points of the front doubling mold and the rear doubling mold to the wires respectively, and the multi-strand wire is in a temporary and intermittent fixed state at the moment; starting a twisting chuck to clamp a clamping point on the multi-strand wire with the set length, and then rotating the twisting chuck around the clamping point so as to drive the multi-strand wire with the set length to twist until twisting of the multi-strand wire with the set length is completed, wherein the multi-strand wire with the set length is twisted into a twisted conductor; after twisting is completed, the twisting clamping head stops rotating, the twisting clamping head and the front and rear doubling dies are loosened, so that the twisting conductor is in a transmissible state, a wire collecting traction device is started, and the twisting conductor is wound on a wire coil of the wire collecting traction device; when the stranded conductor is wound, the stranded conductor with the set length of the next section is pulled out of the paying-off device under the traction of the winding traction device, and the end A of the stranded conductor with the set length of the previous section is pulled and fixed on the fixed mould to form the end B of the stranded conductor with the set length of the next section.

The tension wire storage frame is used for straightening the wire and is in a tension state, and compensating the length difference of the wire in the twisting process, so that the wire is prevented from being too thin and not meeting the standard requirement due to excessive stretching, and the subsequent twisting treatment is facilitated. Since the stranding device is located between the front and rear doubling dies, the stranded conductor will now be stranded with two strands of opposite twist directions bounded by the pinch points, i.e. SZ stranding. Thus, the utility model realizes static stranding and dynamic traction transmission through repeated intermittent operation of traction, small-section stranding and wire winding. The stranding operation of all the wires is finished by finishing the stranding of the set length, the wires of each section are stranded under the static state, the stranding speed is high, the stranding operation can be finished only by adopting a portable stranding device, large-scale and heavy equipment is not required, the structure of the stranding equipment is greatly simplified, the operation is more convenient, the paying-off device or the wire collecting device is not required to rotate together with the stranding device, and only static placement and wire outlet are required, so that the problem of large moment of inertia does not exist, the safety risk is effectively reduced, the wire storage quantity of the paying-off device is not limited by the moment of inertia any more, and longer wire storage quantity can be provided to meet the requirement of longer stranding length; in addition, because of large-scale heavy equipment, high cost and high energy consumption, the utility model can also greatly save equipment cost and energy consumption cost and effectively save power energy.

The utility model may further be embodied as:

the scheme of the twisting chuck can be as follows:

one is: each group of twisting chucks are movable chucks, each movable chuck is connected to a driving device arranged on the annular support, and after the driving device is started, the plurality of twisting chucks move towards the central shaft direction of the annular support until the wires are clamped.

The stranded chucks of the scheme are all movable chucks, namely, each chuck can move and clamp the wire at the center point of the wire under the action of the driving device. Because this scheme needs to provide more driving points, therefore the structure is comparatively complicated, consider adopting overhanging bracket type structure, its one end is fixed in on the ring shape support, perhaps set up two ring shape supports, adopt and lie in two ring shape supports and both ends are fixed the support frame on it, install movable chuck and drive arrangement in this overhanging bracket or both ends fixed support frame's middle part position.

The other is:

at least one group of twisting chucks are movable chucks which are connected to a driving device arranged on the circular support, other twisting chucks are static chucks fixedly arranged on the circular support, at the moment, the clamping points of the static chucks are positioned at the central axis point of the inner ring of the circular support, and after the driving device is started, the movable chucks move towards the central axis direction of the circular support and are gathered with the clamping points of the static chucks to clamp a wire.

The preferable scheme can be as follows: the twisting chucks are two groups, one group is a dynamic pressure wheel chuck, and the other group is a static pressure wheel chuck; the static pressure wheel chuck is fixedly arranged on the supporting rod, the clamping point of the static pressure wheel chuck is positioned at the center of the circular support, the supporting rod is fixed on one side of the circular support on the circular surface, the movable wheel frame is arranged on the other symmetrical side of the circular surface, the movable wheel frame is a pair of flat rods parallel to the supporting rod, and the polished rod is perpendicular to the flat rods and passes through holes arranged on the flat rods; the movable pinch roller chuck is arranged at the middle position of the movable wheel frame, two sides of the movable wheel frame are connected with a driving device fixed on the annular surface of the annular bracket, and under the action of the driving device, the flat rod can move up and down along with the guiding of the polish rod, so that the movable pinch roller chuck can be driven to approach towards the static pinch roller chuck until the wire is clamped together with the static pinch roller chuck.

The mode only needs one side to be driven to be close to the other side, so that more moving parts are avoided, the driving structure is simplified, and the clamping can be more accurate.

The driving device is either a cylinder driving device or a hydraulic driving device.

Because the stranded collet drive of the present utility model does not require a power element of much power, a cylinder drive arrangement may be preferred.

The stranding device is arranged at the middle position between the front doubling die and the rear doubling die.

At this time, the twisted conductors will be twisted in two strands with opposite twisting directions, i.e., two-way twisting, which is different from the conventional one-way twisting structure, but since twisting is to make the multi-strand wires be connected in the same length in both the wound and laid state, the two-way twisting also meets the above requirements.

The stranding devices are provided with a plurality of groups and are equidistantly distributed among A, B ends, each group of stranding devices corresponds to a clamping point on a plurality of strands of wires with set lengths, and the stranding directions of two adjacent stranding devices are opposite.

Therefore, a plurality of twisting points can be arranged under the condition of the long distance as much as possible, and as the twisting sections between two adjacent twisting devices are twisted by two twisting devices, the set length of each twisting is increased, the twisting efficiency is improved, the twisting compactness is increased, and the twisting pitch is more balanced.

It should be noted that, when the end a of the previous hinge is used as the end B of the next hinge, the clamping points of the two front and rear ends are preferably completely corresponding to no deviation, however, the process is not sufficiently ensured in practical application of the factory. As a product, such a two-time clamping point may have some errors, but the smaller the error the better. As to how much the tolerance should be controlled, the person skilled in the art can easily implement the corresponding implementation based on the production site.

The front winding device and the rear winding device are respectively positioned at the front side and the rear side of the twisting device, after the twisting chuck stops rotating, and when the twisting chuck is still in a clamping state for holding the clamping point, the front winding device and the rear winding device are started to carry out tightening treatment on stranded multi-strand wires at the two sides of the clamping point, and then the multi-strand wires are compressed and wound.

The twisted conductors can be untwisted due to the pulling of traction, so that the loose untwisting of the twisted cable cores can be effectively prevented by the arrangement of the front winding device and the rear winding device. The wire comprises a conductor single wire and a cable core, the conductor single wire generates proper plastic deformation when being twisted in a rotating way and cannot easily rebound and loose strands, so that the conductor single wire can be bound and fastened without adopting a front-back winding device in the twisting process; the cable core is wrapped in the insulating adhesive layer, so that the surface friction force of the insulating adhesive layer is insufficient during twisting, and the cable core is easy to rebound and loose, and is easy to untwist, so that the front and back winding device is preferably adopted for binding and tightening.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: the repeated and intermittent operation of traction, small-section twisting and wire winding is adopted, static and intermittent twisting is adopted to replace dynamic and continuous twisting, the traditional process that a large-weight twisting cage or a paying-off device is required to rotate in the prior art is broken through, the structure and operation are simplified, only small equipment rotational inertia is required, the production safety is improved, the wire storage quantity of the paying-off device is improved, longer twisting length requirements are provided, the equipment cost and the energy consumption cost are greatly saved, and the power energy is effectively saved.

Drawings

FIG. 1 is a schematic diagram of a twisting process of a disc twisting machine according to the background art of the utility model;

FIG. 2 is a schematic diagram of an intermittent stranding process according to the present utility model;

fig. 3 is a schematic structural view of the twisting device according to the present utility model.

Reference numerals: 1. a paying-off device; 2. a conductor single wire or cable core; 3. filling rope (strip) wire storage rack; 4. filling ropes (strips); 5. tension wire storage rack; 6. front doubling mold; 7. wrapping the front binding tape with a wrapping head; 8. a clamp-type stranding device; 9. the rear binding belt winds the head of the packet; 10. a rear doubling mold; 11. a roller; 12. a crawler-type traction machine; 13. a cable core after cabling; 14. a wire winding machine.

81. A motor; 82. a synchronous belt; 83. a frame, 84, a rotary air bag; 85. a circular ring-shaped bracket; 86. a polish rod; 87. a movable wheel frame; 88. a cylinder; 89. a pinch roller chuck; 810. a static pressure wheel chuck; 811. and (5) supporting the rod.

Description of the embodiments

The utility model is described in more detail below with reference to the accompanying drawings.

Referring to fig. 2, the intermittent stranding device for cable manufacture according to the present utility model involves the following: the paying-off device 1 (or a wire storage device or a wire coil, configured according to the requirement), the tension wire storage frame 5, the front doubling mold 6, the front ribbon winding head 7 serving as a front winding device, the clamping strander 8 serving as a stranding device, the rear ribbon winding head 9 serving as a rear winding device, the rear doubling mold 10, the roller 12 serving as a compacting device, and the crawler tractor 12 and the wire collecting machine 14 serving as wire collecting traction devices are sequentially arranged.

With reference to fig. 3, the structure of the clamping stranding device 8 refers to fig. 3, the clamping stranding device 8 comprises a circular bracket 85 and at least two groups of stranding chucks, the circular bracket is mounted on a frame, a rotary air bag 84 is arranged on the frame and used for wrapping and protecting wires, and an inner ring of the circular bracket is arranged and communicated with an inner cavity concentric shaft of the rotary air bag; the motor 81 is mounted on one side of the frame and is connected to the circular support 85 via a timing belt 82 to achieve synchronous rotation.

The twisting chucks are two groups, one group is a dynamic pressure wheel chuck 89, and the other group is a static pressure wheel chuck 810; the static pressure wheel chuck 810 is fixedly arranged on a supporting rod 811, the clamping point of the static pressure wheel chuck 810 is positioned at the center of the circular support 85, the supporting rod 811 is fixed on one side of the circular surface of the circular support 85, the symmetrical other side of the circular surface is provided with a movable wheel frame 87, the movable wheel frame 87 is a pair of flat rods parallel to the supporting rod 811, and the polished rod 86 is perpendicular to the flat rods and passes through holes arranged on the flat rods; the movable pinch roller chuck 89 is installed at the middle position of the movable wheel frame 87, two sides of the movable wheel frame 87 are connected with a cylinder driving device 88 fixed on the annular surface of the annular bracket, and under the action of the cylinder driving device, a flat rod (movable wheel frame) can move up and down along with the guiding of the polish rod 86, so that the movable pinch roller chuck 89 is driven to approach towards the static pinch roller chuck 810 until the wire is clamped together with the static pinch roller chuck 810.

Firstly, a conductor single wire or a cable core 2 on a paying-off device or a wire coil 1 is pulled to pass through a tension wire storage frame 5 and then pulled to pass through a front doubling mold 6, (if the cable core is cabled, a filling rope (strip) 4 on a filling rope (strip) wire storage frame 3 can be simultaneously pulled to pass through the front doubling mold 6 together, if the conductor single wire is twisted, filler is not needed generally), and then pulled to pass through a clamping strander 8 and a rear doubling mold 10 together in sequence, and then pulled to pass through a roller 11 until reaching a crawler tractor 12; then, the clamping strander 8 starts to rotate to drive the conductors or cable cores to twist, when the preset length of the conductors between the two points A, B reaches the twisting requirement, the clamping strander 8 stops rotating, the front binding band works around the ferrule 7 and the rear binding band works around the ferrule 9 at the same time, the twisted cable cores are fastened to prevent rebound and loosening (if the conductors are twisted, the conductors are not required to be fastened generally), and then the crawler-type traction machine 12 pulls the twisted cable cores to the wire winding machine 14 to be wound on a wire coil; in the wire winding process, the next twisted section with a set length is simultaneously pulled in place, when the next clamping point position reaches the clamping type strander 8, the clamping type strander 8 clamps and rotates the twisted cable core again until the twisting reaches the preset length, and thus, the repeated and intermittent operation of pulling-small-section twisting-wire winding is performed, and the reciprocating operation is performed circularly until the twisting operation of the whole section of conductor or cable core is completed.

The above process replaces dynamic and continuous twisting with static and intermittent twisting through repeated and intermittent operation of traction-small-section twisting-wire winding, breaks through the traditional process that a heavy weight twisting cage or a paying-off device is required to rotate in the prior art, simplifies the structure and operation, only needs smaller equipment moment of inertia, improves the production safety, improves the wire storage capacity of the paying-off device, provides longer twisting length requirements, greatly saves the equipment cost and the energy consumption cost, and effectively saves the power energy.

Claims

1. A intermittent type formula hank system device for cable preparation, including pay-off, tension wire storage frame, sticiss device and the receipts line draw gear of order arrangement, its characterized in that: also comprises a front doubling mold, a stranding device and a rear doubling mold,

the wire paying-off device comprises a plurality of wire paying-off devices which are respectively arranged on the ground or a fixed platform, wherein each wire paying-off device comprises a circular support, a driving device and twisting chucks, the driving device and the twisting chucks are arranged on the circular support, one ends of the twisting chucks are arranged on the circular support, the other ends of the twisting chucks are clamping ports, at least two groups of twisting chucks are arranged, clamping points of the twisting chucks can be positioned at central axial points of the inner ring of the circular support when the wire is clamped, and the circular support synchronously rotates with a motor through a synchronous belt and drives all the twisting chucks to rotate around the wire clamped by the twisting chucks;

2. The intermittent stranding apparatus for cable manufacture of claim 1 wherein: each group of twisting chucks are movable chucks, each movable chuck is connected to a driving device arranged on the annular support, and after the driving device is started, the plurality of twisting chucks move towards the central shaft direction of the annular support until the wires are clamped.

3. The intermittent stranding apparatus for cable manufacture of claim 1 wherein: at least one group of twisting chucks are movable chucks which are connected to a driving device arranged on the circular support, other twisting chucks are static chucks fixedly arranged on the circular support, at the moment, the clamping points of the static chucks are positioned at the central axis point of the inner ring of the circular support, and after the driving device is started, the movable chucks move towards the central axis direction of the circular support and are gathered with the clamping points of the static chucks to clamp a wire.

4. The intermittent stranding apparatus for cable manufacture of claim 3 wherein: the twisting chucks are two groups, one group is a dynamic pressure wheel chuck, and the other group is a static pressure wheel chuck; the static pressure wheel chuck is fixedly arranged on the supporting rod, the clamping point of the static pressure wheel chuck is positioned at the center of the circular support, the supporting rod is fixed on one side of the circular support on the circular surface, the movable wheel frame is arranged on the other symmetrical side of the circular surface, the movable wheel frame is a pair of flat rods parallel to the supporting rod, and the polished rod is perpendicular to the flat rods and passes through holes arranged on the flat rods; the movable pinch roller chuck is arranged at the middle position of the movable wheel frame, two sides of the movable wheel frame are connected with a driving device fixed on the annular surface of the annular bracket, and under the action of the driving device, the flat rod can move up and down along with the guiding of the polish rod, so that the movable pinch roller chuck can be driven to approach towards the static pinch roller chuck until the wire is clamped together with the static pinch roller chuck.

5. The intermittent stranding apparatus for cable manufacture of claim 1 wherein: the stranding devices are provided with a plurality of groups, the stranding devices are equidistantly distributed between the front doubling die and the rear doubling die, each group of stranding devices corresponds to a clamping point for a plurality of strands of wires with set lengths, and the stranding directions of two adjacent stranding devices are opposite.

6. The intermittent stranding apparatus for cable manufacture of claim 1 wherein: the front winding device and the rear winding device are respectively positioned at the front side and the rear side of the twisting device, after the twisting chuck stops rotating, and when the twisting chuck is still in a clamping state for holding the clamping point, the front winding device and the rear winding device are started to carry out tightening treatment on stranded multi-strand wires at the two sides of the clamping point, and then the multi-strand wires are compressed and wound.