A kind of heating tube of cable copper wire annealing device
Technical field
The present invention relates to cable apparatus technical field, more specifically to a kind of heating of cable copper wire annealing device
Pipe.
Background technique
Copper bar and aluminium bar can generate hardening, become fragile during drawing on wire drawing machine, in order to restore the plasticity of monofilament,
Keep good electric property, it is therefore desirable to be heat-treated wire rod at a certain temperature;
And existing annealing has annealing furnace mode or heat pipe-type to heat, its in annealing furnace is usually to be made of furnace body, one
As be that the copper bar of winding is entirely placed on to annealing heating in furnace body, annealing after filament properties it is unstable, be unable to on-line continuous
Annealing, and the annealing cycle is longer.And heat pipe-type, annealing cycle are short, and it has the drawback that the copper bar or copper wire of conveying
It can be in contact with heat pipe and generate friction and wear, influence quality.
Summary of the invention
The purpose of the present invention is to the deficiencies of the prior art, and provide a kind of heating of cable copper wire annealing device
Pipe, it can guarantee that the copper bar of conveying or copper wire normally convey by ball, reduce abrasion, guarantee the quality of its conveying annealing.
Technology solution of the invention is as follows:
A kind of heating tube of cable copper wire annealing device, including heating cylinder, the interior of the heating cylinder are fixed
There is electric heating wire;
Thermally conductive protective sleeve is fixed on the inner sidewall of the heating cylinder;
Annular slot is formed on the left part and right part inner sidewall of the thermally conductive protective sleeve, is equipped in annular slot
Toroidal shell and ring cover are equipped with multiple balls, the middle part molding of toroidal shell and ring cover between toroidal shell and ring cover
Have be mutually aligned and communicate through through-hole.
Inner groovy, inner groovy and annular slot phase are formed on the left end of the thermally conductive protective sleeve and right end inner sidewall
Logical, the diameter of annular slot is less than the diameter of inner groovy, forms internal screw thread on the inner sidewall of inner groovy, positioning sleeve is in indent
In slot, for the external thread bolt connection on the lateral wall of positioning sleeve on internal screw thread, the inner face of positioning sleeve is pressed against corresponding ring cover
On.
The edge sleeve of the toroidal shell and ring cover in annular slot, be close to by the side wall of toroidal shell and ring cover
The end face edge of the inner wall of annular slot, toroidal shell is pressed against on the inner sidewall of annular slot.
The edge of the toroidal shell and ring cover is mutually pressed against.
The inner sidewall of the toroidal shell forms annular arc groove, multiple ball sleeves in annular arc groove,
The edge of the inner face of the end plate of toroidal shell forms first annular lug boss, and ring cover is pressed against the end face of toroidal shell
Edge forms the second annular relief, and ball is in first annular lug boss, the second annular relief and annular arc groove
Between.
The beneficial effects of the present invention are:
It can guarantee that the copper bar of conveying or copper wire normally convey by ball, reduce abrasion, guarantee its conveying annealing
Quality.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is partial enlarged view of the invention.
Specific embodiment
Embodiment: as shown in Fig. 1 to Fig. 2, a kind of heating tube of cable copper wire annealing device, including heating cylinder 10, institute
The interior for stating heating cylinder 10 is fixed with electric heating wire 11;
Thermally conductive protective sleeve 12 is fixed on the inner sidewall of the heating cylinder 10;
Annular slot 13 is formed on the left part and right part inner sidewall of the thermally conductive protective sleeve 12, in annular slot 13
Toroidal shell 14 and ring cover 15 are installed, multiple balls 16, toroidal shell 14 are equipped between toroidal shell 14 and ring cover 15
Formed with the middle part of ring cover 15 be mutually aligned and communicate through through-hole 17.
Further, inner groovy 121, indent are formed on the left end of the thermally conductive protective sleeve 12 and right end inner sidewall
Slot 121 is communicated with annular slot 13, and the diameter of annular slot 13 is less than the diameter of inner groovy 121, on the inner sidewall of inner groovy 121
Internal screw thread is formed, positioning sleeve 18 is in inner groovy 121, and the external thread bolt connection on the lateral wall of positioning sleeve 18 is in internal screw thread
On, the inner face of positioning sleeve 18 is pressed against on corresponding ring cover 15.
Further, the edge sleeve of the toroidal shell 14 and ring cover 15 is in annular slot 13, toroidal shell
14 and the side wall of ring cover 15 be close to the inner wall of annular slot 13, the end face edge of toroidal shell 14 is pressed against annular slot 13
Inner sidewall on.
Further, the edge of the toroidal shell 14 and ring cover 15 is mutually pressed against.
Further, the inner sidewall of the toroidal shell 14 forms annular arc groove 141, multiple 16 sleeves of ball
In annular arc groove 141, the edge of the inner face of the end plate of toroidal shell 14 forms first annular lug boss 142, ring
The edge that shape lid 15 is pressed against the end face of toroidal shell 14 forms the second annular relief 143, and ball 16 is in first annular
Between lug boss 142, the second annular relief 143 and annular arc groove 141.
When the present embodiment is in use, copper wire or copper bar protrude into thermally conductive protective sleeve 12, and pass through two toroidal shells 14
With ring cover 15 through through-hole 17, finally stretched out from the other end of thermally conductive protective sleeve 12, wherein be in 14 He of toroidal shell
The copper wire or copper bar of ring cover 15 are between multiple balls 16, it is possible to reduce copper wire or copper bar connect with thermally conductive protective sleeve 12
Contacting surface product improves the effect and quality of processing conveying to reduce abrasion when copper wire or the conveying of copper bar.