CN217061608U

CN217061608U - Production fireproof cable winds package and uses mould

Info

Publication number: CN217061608U
Application number: CN202220842326.9U
Authority: CN
Inventors: 高洪强; 刘万朋; 黄雪松; 王国强
Original assignee: Liaoning Jinda Cable Co ltd
Current assignee: Liaoning Jinda Cable Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-26
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a production fireproof cable winds package and uses mould, this mould comprises the outer mould of fixing on wrapping the quick-witted die holder around and the mold core of dress in the outer mould, the outer mould includes the mould bucket, is equipped with the mould bucket mounting flange that turns up the constitution by the bucket wall at the bung hole, puts at the barrel head central point of mould bucket and opens there is the cable clearing hole, the diameter of cable clearing hole is less than the mould bucket internal diameter to form a mold core spacing fender ring at the mould bucket barrel head, the mold core is hugged closely the barrel head and is inlayed and be equipped with in the mould bucket, is equipped with the straight tube section that pastes the tight fit with the outer face of cylinder of mold core at the mould bucket inner wall of barrelhead, the mold core is the split type mold core that comprises two identical half pipe locks, thereby forms a coaxial, with the mould bucket die hole of band pressure at the cable core outer wall at the center of mould bucket. This around package mould can accomplish the maintenance of mould and the specification conversion fast through the mode of changing the mold core, and the mold core is changed and need not to cut the cable, changes easy operation, convenience, swift.

Description

Production fireproof cable winds package and uses mould

Technical Field

The utility model relates to a cable is around package mould, especially a mould that mica tape was used around package carries out when production isolated form mineral insulation fireproof cable.

Background

Six layers of mica wrapping wire cores are adopted in the fireproof layer of the isolated mineral insulated fireproof cable, then insulated finished cables are longitudinally wrapped and welded with the aluminum sleeve and the ceramic oxygen isolation layer, and a wrapping machine is needed to complete mica tape wrapping in the production process. In the prior art, an integral type wrapping belt pressing die with a fixed aperture is mostly adopted for the wrapping machine, and in the production process, after the integral type wrapping belt pressing die is used for a long time, a die hole is easy to be eccentric, so that the quality of wrapping belts is influenced, and the die needs to be replaced regularly. Because the mould is overall structure, need cut the cable when changing, just can take off the mould, change, can normally produce by threading again after having changed the mould, not only complex operation has restricted the production of overlength cable moreover. In addition, one set of mould of the integral type wrapping tape compression mould with the fixed aperture can only meet the cable production requirement of one specification, and when the specification of the produced cable is changed, the corresponding mould needs to be replaced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is: the utility model provides a production fireproof cable winds package and uses mould, this wind package and use mould can accomplish the maintenance of mould, and the specification conversion fast through the mode of changing the mold core, and the mold core is changed and need not to cut the cable, changes easy operation, convenience, swift.

The technical scheme adopted for solving the technical problem is as follows: a mould for producing fireproof cable wrapping comprises an outer mould fixed on a mould holder of a wrapping machine and a mould core arranged in the outer mould, wherein the outer mould comprises a mould barrel, a mould barrel fixing flange formed by outwards turning the barrel wall is arranged at a barrel opening, a cable through hole is formed in the center of the barrel bottom of the mould barrel, the diameter of the cable through hole is smaller than the inner diameter of the mould barrel, so that a mould core limiting retaining ring is formed at the barrel bottom of the mould barrel, the mould core is tightly attached to the barrel bottom and embedded in the mould barrel, a straight pipe section tightly matched with the outer cylindrical surface of the mould core is arranged on the inner wall of the mould barrel at the bottom end of the barrel, the mould core is a split type mould core formed by buckling two identical half pipes, and a mould hole coaxial with the mould barrel and pressing a wrapping belt on the outer wall of a cable core is formed in the center of the mould barrel.

As a further improvement of the utility model: the die barrel fixing flange, the die barrel and the die core limiting retaining ring are of an integrated structure.

As a further improvement scheme of the utility model: the front of the straight pipe section of the die barrel is connected with a conical pipe section which is convenient for quickly installing or taking out the split type die core, and the inner diameter of the conical pipe section close to the mounting flange end of the die barrel is large, and the inner diameter of the conical pipe section close to the limiting retaining ring end of the die core is small.

As a further improvement of the utility model: the two half pipes forming the split type mold core are plastic half pipes, and the length of each plastic half pipe is 30-50 mm.

As a further improvement scheme of the utility model: the taper angle of the taper pipe section is 3-5 degrees.

As a further improvement scheme of the utility model: the taper angle of the tapered tube section is 4 degrees.

As a further improvement scheme of the utility model: the connecting part of the inner wall of the die barrel and the fixed flange of the die barrel is provided with an arc-shaped chamfer, and the radius of the chamfer is 30 mm.

Has the beneficial effects that: the utility model discloses a production fireproof cable is around package and is used mould, owing to adopted the mold core that is in the package by external mold and dress outside the mould constitutes around package for the mould, the mold core is the technical characteristic of the split type mold core that comprises two identical half-pipe locks, makes the utility model discloses a production fireproof cable only needs to take out the mold core from the external mold, changes when the mold core appears eccentric wear around package for the mould use, need not to disassemble the external mold and cut the cable at taking out, the change in-process of mold core, and easy operation is convenient to, when the cable specification of production changes, the mold core that only needs to change corresponding specification just can satisfy the production needs, and need not break, change the external mold. The mold barrel fixing flange, the mold barrel and the mold core limiting baffle ring are integrated, so that the outer mold has the advantages of better structural strength, more durability and more convenience in processing and manufacturing. Owing to adopted the place ahead at mould bucket straight tube section to be connected with the conical pipe section that conveniently installs split type mold core fast or take out, the conical pipe section is close to big, the technique that is close to the spacing retaining ring of mold core end internal diameter of mould bucket mounting flange end internal diameter and kills the characteristic, makes the mold core just can autosegregation leaving the straight tube section to make taking out and embedding operation of mold core more convenient, bare-handed whole operations that just can accomplish the dismouting mold core. Because the two half pipes forming the split type mold core are plastic half pipes, and the length of the plastic half pipes is limited reasonably, the mold has better compression effect on the mica tape, and the mica tape is not easy to scratch. Because the cone angle of the cone pipe section is reasonably limited, the taking and the placing of the mold core are more convenient, and the normal operation of the existing wrapping machine is not influenced. Owing to adopted and be equipped with the arc chamfer at mould bucket inner wall and mould bucket mounting flange's connecting portion to rationally inject the radius of chamfer, made the utility model discloses a mould during operation can prevent to take place damaged when mica tape and the contact of flange internal orifice, consequently, can conveniently adjust the contained angle of mica tape and cable, thereby realize improving through the spiral lead angle of adjustment mica tape around package efficiency.

Drawings

The following description will be made in detail for the production of the fireproof cable wrapping die of the present invention with reference to the accompanying drawings.

Fig. 1 is an axial section structure diagram of the mold for producing fireproof cable wrapping of the present invention;

FIG. 2 is an axial view of the mold core in the mold for producing fire-proof cable wrapping of the present invention;

fig. 3 is the utility model discloses a production fireproof cable winds the structure schematic diagram of package mould user state.

Detailed Description

As shown in fig. 1, the utility model discloses a production fireproof cable is around mould for package comprises outer mould 1 and the mold core 2 of dress in the outer mould fixed on wrapping the quick-witted die holder, the outer mould includes mould bucket 12, and the outer wall of mould bucket is cylindrical, is equipped with the mould bucket mounting flange 11 that constitutes by the bucket wall turns up at the bung hole, and the outer mould passes through the installation of mould bucket mounting flange to be fixed on wrapping the machine, and it has cable clearing hole 15 to open at 14 central points in the barrel head of mould bucket, the diameter of cable clearing hole is less than mould bucket internal diameter to form a spacing fender ring 13 of mold core at mould bucket head, the mold core is hugged closely the barrel head and is inlayed in the mould bucket, is equipped with the straight tube section B who pastes the tight fit with the outer face of cylinder of mold core at the mould bucket inner wall of barrel head. The front of the straight pipe section of the die barrel is connected with a taper pipe section A which is convenient for quickly installing or taking out the split type die core, and the taper pipe section is large in inner diameter close to the mounting flange end of the die barrel and small in inner diameter close to the limiting baffle ring end of the die core. The preferred cone angle for the cone section is 3-5 degrees and the optimum cone angle for the cone section is 4 degrees. Mould bucket mounting flange, mould bucket and the spacing structure that keeps off the ring preferably by rigid plastic make, be equipped with the arc chamfer at the connecting portion of mould bucket inner wall and mould bucket mounting flange, the radius R of chamfer is 30 millimeters.

As shown in fig. 2, the mold core is a split mold core formed by two identical half pipes 22 which are buckled together, so that a mold hole 21 which is coaxial with the mold barrel and presses a belt on the outer wall of the cable core is formed in the center of the mold barrel, and the two half pipes forming the split mold core are preferably plastic half pipes, and the length of the plastic half pipes is 30-50 mm.

As shown in fig. 3, the utility model discloses a production fireproof cable is around package with mould during operation, cable core 3 gets into the nib after 4 at the bung hole department of external mold around package mica tape, the mica tape on the cable core is compressed tightly when the nib around the package, the cable of external mold barrel head passes through the hole again and exports to preface workshop section, in-process when the cable core is moved to the bung hole by the external mold bung hole, under the effect of frictional force, split type mold core tightly pastes on the spacing fender ring of mold core, the split type mold core that constitutes by the half-pipe lock forms stable nib structure under the restraint of straight tube section in the mold barrel.

The utility model discloses a production fireproof cable only needs shut down the back when changing the mold core around package with the mould, promotes the outside mould bung hole direction of mold core, after the mold core left the straight tube section constraint, decomposes into two halves automatically, at this moment, just can follow external mould bung hole department and take out the mold core, carry out reverse operation during the installation mold core can, because the mold core comprises two half pipe locks, so change the in-process need not to cut the cable just can arrange the cable in the nib, can realize bare-handed quick replacement mold core operation.

Claims

1. The utility model provides a production fireproof cable is around chartered and is used mould, comprises the mold core of fixing the external mold on wrapping machine die holder and dress in the external mold, characterized by: the outer die comprises a die barrel, a die barrel fixing flange formed by turning over a barrel wall is arranged at a barrel opening, a cable through hole is formed in the center of the barrel bottom of the die barrel, the diameter of the cable through hole is smaller than the inner diameter of the die barrel, so that a die core limiting baffle ring is formed at the barrel bottom of the die barrel, the die core is tightly attached to the barrel bottom and embedded in the die barrel, a straight pipe section tightly attached to the outer cylindrical surface of the die core is arranged on the inner wall of the die barrel at the bottom end of the barrel, the die core is a split type die core formed by buckling two identical half pipes, and a die hole which is coaxial with the die barrel and presses a wrapping belt on the outer wall of a cable core is formed in the center of the die barrel.

2. The mold for producing the fireproof cable wrapping according to claim 1, wherein: the die barrel fixing flange, the die barrel and the die core limiting retaining ring are of an integrated structure.

3. The mold for producing the fireproof cable wrapping package according to claim 2, wherein: the front of the straight pipe section of the die barrel is connected with a conical pipe section which is convenient for quickly installing or taking out the split type die core, and the inner diameter of the conical pipe section close to the mounting flange end of the die barrel is large, and the inner diameter of the conical pipe section close to the limiting retaining ring end of the die core is small.

4. The mold for producing the fireproof cable wrapping package according to claim 3, wherein: the two half pipes forming the split type mold core are plastic half pipes, and the length of each plastic half pipe is 30-50 mm.

5. The mold for producing the fireproof cable wrapping package according to claim 4, wherein: the taper angle of the taper pipe section is 3-5 degrees.

6. The mold for producing the fireproof cable wrapping package according to claim 5, wherein: the taper angle of the tapered tube section is 4 degrees.

7. The mold for producing fireproof cable wrapping according to any one of claims 1 to 6, wherein: an arc-shaped chamfer is arranged at the connecting part of the inner wall of the die barrel and the fixed flange of the die barrel, and the radius of the chamfer is 30 mm.