CN214203328U - Mold for stranded cable - Google Patents

Abstract

The utility model discloses a mold for stranded cable, its main points are: comprises a guide die assembly, a wire passing die assembly and a doubling die. The guide die assembly, the wire passing die assembly and the doubling die are sequentially arranged on the corresponding workbench along the wire inlet direction of the cable core. The guide die assembly adjusts the positions of the two D-shaped electric wires, so that the flat side of the D-shaped electric wires is positioned on the inner side, and the circular arc side is positioned on the outer side. The mold core of the wire passing mold component is symmetrically provided with two wire passing holes along the vertical direction. The mold core is provided with two filling strip line passing holes symmetrically along the left and right directions. The doubling die is rotatably arranged on the workbench and is coaxial with the die core. The pin shaft part is provided with a pin shaft hole penetrating through the left and the right of the pin shaft part along the radial direction of the pin shaft part, and an isolation pin is arranged in the pin shaft hole. The wire outlet hole part is provided with parallel wire outlet holes penetrating through the front and the back of the wire outlet hole part, the pin shaft part is provided with parallel wire guide holes penetrating through the front and the back of the pin shaft part, the parallel wire guide holes are in a horn mouth shape with a large front part and a small back part, and the back ports of the parallel wire guide holes are smoothly connected with the front ends of the parallel wire outlet holes.

Description

Mold for stranded cable

Technical Field

The utility model relates to a cable manufacturing field, concretely relates to mould for transposition cable.

Background

A cable typically includes a cable core, like a rope, formed by twisting several or groups of wires (at least two in each group), and a jacket surrounding the cable core. The cable mould is a key tool in a cable production line and is used for matching with an extruder to uniformly coat sheath materials (such as polyvinyl chloride, rubber and the like) on cable cores. In order to ensure that the thickness of the sheath is uniform, it is necessary to maintain the roundness of the cable core as much as possible before the cable core enters the extruder. A cable that contains two D type electric wires and two packing strips when the transposition, D type electric wire can take place to twist, leads to one side of circular arc to be located the centre, and flat one side is located the outside to make cable circularity greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure for improve two cross-sections and for the mould for the stranded cable of the cable core circularity that D shape electric wire and two filler strip transposition formed.

Realize the utility model discloses the basic technical scheme of purpose is: the utility model provides a mould for stranded cable, its structural feature is: comprises a guide die assembly, a wire passing die assembly and a doubling die. The guide die assembly, the wire passing die assembly and the doubling die are sequentially arranged on the corresponding workbench along the wire inlet direction of the cable core.

The guide die assembly comprises an upper guide wheel, an upper pinch roller, a lower pinch roller and a lower guide wheel. The upper guide wheel, the upper pinch roller, the lower pinch roller and the lower guide wheel are sequentially arranged on the workbench in a rotating mode from top to bottom, and the rotating axis is arranged in the left-right direction. The upper guide wheel is provided with a wire guide groove with an outward opening along the circumferential direction, and the cross section of the wire guide groove is semicircular. The lower guide wheel is provided with a wire guide groove with an outward opening along the circumferential direction, and the cross section of the wire guide groove is semicircular.

The wire passing die assembly comprises a die core, two wire passing holes are symmetrically formed in the die core in the vertical direction, the wire passing holes penetrate through the front and the back of the die core, the cross sections of the two wire passing holes are semicircular, the arc of the wire passing hole above the wire passing hole is upwards arranged, and the arc of the wire passing hole below the wire passing hole is downwards arranged. The mold core is provided with two filling strip line holes symmetrically along the left and right direction, and the two filling strip line holes penetrate through the front and the back of the mold core.

The doubling die is rotatably arranged on the workbench and is coaxial with the die core. The doubling die sequentially comprises a pin shaft part and a wire outlet hole part from front to back. The pin shaft part is provided with a pin shaft hole penetrating through the left and the right of the pin shaft part along the radial direction of the pin shaft part, and an isolation pin is arranged in the pin shaft hole. The wire outlet hole part is provided with parallel wire outlet holes penetrating through the front and the back of the wire outlet hole part, the pin shaft part is provided with parallel wire guide holes penetrating through the front and the back of the pin shaft part, the parallel wire guide holes are in a horn mouth shape with a large front part and a small back part, and the back ports of the parallel wire guide holes are smoothly connected with the front ends of the parallel wire outlet holes.

The technical scheme based on the basic technical scheme is as follows: the wire passing die assembly further comprises a die core seat. The die core seat is a steel integrated piece. The die core seat is fixedly arranged on the workbench along the front-back direction. The mold core seat is provided with mounting holes penetrating through the front and the back of the mold core seat, and the mold core is in interference fit in the mounting holes of the mold core seat. The mold core is an integrated piece made of tungsten steel.

The technical scheme based on the corresponding technical schemes is as follows: the isolation pin is made of tungsten steel material.

The utility model discloses following beneficial effect has: (1) the utility model discloses a mould for stranded cable is equipped with direction mould subassembly, through direction mould subassembly, adjusts the position of two D type electric wires, makes the flat one side of D type electric wire be located the inboard, and one side of circular arc is located the outside, then keeps the electric wire that this state got into the mold core of crossing line mould subassembly to cross the line hole, and two packing strips get into respectively simultaneously and fill the strip and cross the line hole, through crossing the position of line mould subassembly location two electric wires and packing strip. When the D-shaped wires enter the doubling guide holes of the doubling die, the two D-shaped wires respectively enter the doubling guide holes from the upper side and the lower side of the isolating pin, the two filling strips respectively enter the doubling guide holes from the upper side and the lower side of the isolating pin, the two D-shaped wires and the two filling strips are twisted after coming out of the doubling wire outlet, and the doubling die synchronously follows up, so that the roundness of the twisted cable core is ensured.

(2) The utility model discloses a stranded cable cross line mould subassembly's mold core adopts the tungsten steel to make, and the wearability is good, long service life.

(3) The utility model discloses a stranded cable's doubling die's spacer pin adopts the tungsten steel material to make, and the wearability is good, long service life.

Drawings

Fig. 1 is a schematic structural view of a guide die assembly of the die for stranded cables according to the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of an upper guide wheel of the guide die assembly.

Fig. 4 is a structural schematic diagram of an upper pinch roller of the guide die assembly.

Fig. 5 is a schematic structural view of the wire passing mold assembly of the mold for twisted cables according to the present invention.

Fig. 6 is a right side view of fig. 5.

Fig. 7 is a schematic structural view of a doubling die assembly of the die for twisted cables according to the present invention.

Fig. 8 is a left side view of fig. 7.

Fig. 9 is a schematic sectional view B-B in fig. 7.

The reference numbers in the drawings are:

a guide die component 1, an upper guide wheel 1-1, an upper pinch roller 1-2, a lower pinch roller 1-3, a lower guide wheel 1-4, a wire guide groove 1-5,

a wire passing die component 2, a die core seat 2-1, a die core 2-2, a wire passing hole 2-21, a filler strip wire passing hole 2-22,

the drawing die 3, the pin shaft part 31, the isolation pin 31-1, the drawing guide hole 31-2, the wire outlet hole part 32 and the drawing wire outlet hole 3-21.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings. The description of the position of the utility model is explained according to the operation direction of the cable core of the drawing, one side of the wire inlet is the front side, and one side of the wire outlet is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation must be provided.

(example 1)

See fig. 1 to 7, the utility model discloses a mould for stranded cable includes direction mould subassembly 1, cross line mould subassembly 2 and doubling mould 3. The guide die assembly 1, the wire passing die assembly 2 and the doubling die 3 are sequentially arranged on the corresponding workbench along the wire inlet direction of the cable core.

Referring to fig. 1 to 4, the guide die assembly 1 includes an upper guide wheel 1-1, an upper pinch roller 1-2, a lower pinch roller 1-3, and a lower guide wheel 1-4. The upper guide wheel 1-1, the upper pinch roller 1-2, the lower pinch roller 1-3 and the lower guide wheel 1-4 are sequentially and rotatably arranged on the workbench from top to bottom, and the rotating axis is arranged along the left and right direction. The positions of the upper guide wheel 1-1, the upper pinch roller 1-2, the lower pinch roller 1-3 and the lower guide wheel 1-4 in the vertical direction can be adjusted. The upper pinch roller 1-2 and the lower pinch roller 1-3 have the same structure (see figure 4), and are cylindrical as a whole. The upper guide wheel 1-1 and the lower guide wheel 1-4 have the same structure (see fig. 3), are integrally cylindrical, and are provided with wire grooves 1-5 with outward openings along the circumferential direction, and the cross sections of the wire grooves 1-5 are semicircular. When the device is used, the upper guide wheel 1-1 and the upper pinch roller 1-2 form a group, a corresponding D-shaped wire is positioned between the wire guide groove 1-5 of the upper guide wheel 1-1 and the upper pinch roller 1-2, so that the arc of the D-shaped wire is adjusted to face upwards after the D-shaped wire passes through the upper guide wheel 1-1 and the upper pinch roller 1-2, the lower pinch roller 1-3 and the lower guide wheel 1-4 form a group, another corresponding D-shaped wire is positioned between the lower pinch roller 1-3 and the wire guide groove 1-5 of the lower guide wheel 1-4, and the arc of the D-shaped wire is adjusted to face upwards and downwards after the D-shaped wire passes through the lower pinch roller 1-3 and the lower guide wheel 1-4.

Referring to fig. 5 and 6, the wire passing die assembly 2 includes a die core holder 2-1 and a die core 2-2. The die core seat 2-1 is a steel integrated piece. The die core seat 2-1 is fixedly arranged on the workbench along the front-back direction. The die core seat 2-1 is provided with mounting holes penetrating through the front and the back of the die core seat, and the die core 2-2 is in interference fit in the mounting holes of the die core seat 2-1. The mold core 2-2 is an integrated piece made of tungsten steel. The mold core 2-2 is symmetrically provided with two wire through holes 2-21 along the up-down direction, the wire through holes 2-21 penetrate through the front and the back of the mold core 2-2, the cross sections of the two wire through holes 2-21 are semicircular, the arc-shaped wire through hole 2-21 positioned above is upwards arranged, and the arc-shaped wire through hole 2-21 positioned below is downwards arranged. The mold core 2-2 is symmetrically provided with two filling strip line-passing holes 2-22 along the left and right direction, and the two filling strip line-passing holes 2-22 penetrate through the front and the back of the mold core 2-2. The wire inlet openings of the wire passing holes 2-21 and the filler strip passing holes 2-22 are respectively provided with a horn mouth, so that the wires or the filler strips can enter conveniently, and the abrasion is reduced.

Referring to fig. 7 to 9, the cabling mode 3 is a steel one-piece. The doubling die 3 is rotatably arranged on the workbench and is coaxial with the die core 2-2. The doubling die 3 includes a pin shaft portion 31 and a wire outlet hole portion 32 in this order from front to back. The pin shaft part 31 is provided with pin shaft holes penetrating through the left and the right of the pin shaft part along the radial direction, the pin shaft holes are internally provided with isolating pins 31-1, and the isolating pins 31-1 are made of tungsten steel materials. The wire outlet hole part 32 is provided with parallel wire outlet holes 3-21 penetrating through the front and the back of the wire outlet hole part, the pin shaft part 31 is provided with parallel wire guide holes 31-2 penetrating through the front and the back of the pin shaft part, the parallel wire guide holes 31-2 are in a horn mouth shape with a large front and a small back, and the rear end of the parallel wire guide holes 31-2 is smoothly connected with the front ends of the parallel wire outlet holes 3-21.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (3)

1. A mold for stranded cables, characterized in that: the drawing die comprises a guide die assembly, a wire passing die assembly and a doubling die; the guide die assembly, the wire passing die assembly and the doubling die are sequentially arranged on corresponding workbenches along the wire inlet direction of the cable core;

the guide die assembly comprises an upper guide wheel, an upper pinch roller, a lower pinch roller and a lower guide wheel; the upper guide wheel, the upper pinch roller, the lower pinch roller and the lower guide wheel are sequentially and rotatably arranged on the workbench from top to bottom, and the rotating axis is arranged along the left and right direction; the upper guide wheel is provided with a wire guide groove with an outward opening along the circumferential direction, and the cross section of the wire guide groove is semicircular; the lower guide wheel is provided with a wire guide groove with an outward opening along the circumferential direction, and the cross section of the wire guide groove is semicircular;

the wire passing die assembly comprises a die core, the die core is symmetrically provided with two wire passing holes in the vertical direction, the wire passing holes penetrate through the front and the back of the die core, the cross sections of the two wire passing holes are semicircular, the arc of the wire passing hole positioned above is upwards arranged, and the arc of the wire passing hole positioned below is downwards arranged; the mold core is symmetrically provided with two filling strip line-passing holes along the left and right directions, and the two filling strip line-passing holes penetrate through the front and the back of the mold core;

the doubling die is rotatably arranged on the workbench and is coaxial with the die core; the doubling die sequentially comprises a pin shaft part and a wire outlet hole part from front to back; the pin shaft part is provided with pin shaft holes penetrating through the left and the right of the pin shaft part along the radial direction of the pin shaft part, and the pin shaft holes are internally provided with isolating pins; the wire outlet hole part is provided with parallel wire outlet holes penetrating through the front and the back of the wire outlet hole part, the pin shaft part is provided with parallel wire guide holes penetrating through the front and the back of the pin shaft part, the parallel wire guide holes are in a horn mouth shape with a large front part and a small back part, and the back ports of the parallel wire guide holes are smoothly connected with the front ends of the parallel wire outlet holes.

2. The mold for stranded cables of claim 1, wherein: the wire passing die assembly also comprises a die core seat; the die core seat is a steel integrated piece; the die core seat is fixedly arranged on the workbench along the front-back direction; the mold core seat is provided with mounting holes penetrating through the front and the back of the mold core seat, and the mold core is in interference fit in the mounting holes of the mold core seat; the mold core is an integrated piece made of tungsten steel.

3. The mold for stranded cables of claim 1, wherein: the isolation pin is made of tungsten steel material.

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