CN207802424U

CN207802424U - A kind of single head mold heating tube

Info

Publication number: CN207802424U
Application number: CN201820068839.2U
Authority: CN
Inventors: 邱光斌
Original assignee: Shenzhen Safety Electric Heating Technology Co Ltd
Current assignee: Shenzhen Safety Electric Heating Technology Co Ltd
Priority date: 2018-01-16
Filing date: 2018-01-16
Publication date: 2018-08-31
Anticipated expiration: 2028-01-16

Abstract

The utility model discloses a kind of single head mold heating tubes, including heat conducting pipe, heating wire and extraction wire, and the heating wire is arranged in the inner cavity of heat conducting pipe, and heating wire spirals into spring-like；The extraction wire has two, two extraction wires are arranged in parallel in the hollow space in the heating wire of spring-like, and the length direction of extraction wire is parallel to the central axial direction of the heating wire of spring-like, every extraction wire all has an exit reached outside the heat conducting pipe；The both ends of the heating wire are separately fixed in two extraction wires, and the every extraction wire is formed by multiply conductor strand；Gap in heat conducting pipe is filled with insulating heat-conductive powder.The bridge that the single head mold heating tube of the utility model is connect as extraneous power supply with heating wire using the extraction wire made of multiply conductor strand, with good flexibility, the effect that bend resistance fractures is fine, and can guarantee the reliable and stable of conduction.

Description

A kind of single head mold heating tube

Technical field

The utility model is related to dieparts fields, more particularly to a kind of mold heating tube.

Background technology

During being molded or cast using mold, needs to preheat mold and meet production to reach and want The condition of high temperature asked, to ensure the continuity of production and reduce rejection rate.

Current mold preheating generally heats mold using electric heating tube, but existing electric heating tube is generally using hard The eduction rod or single of the eduction rod of the matter bridge hard that either single lead-out wire is connect as extraneous power supply with heating wire draw The shortcomings that outlet, is that bend resistance effect is poor, after a number of uses, the eduction rod or single lead-out wire frangibility of hard Damage.

Invention content

Goal of the invention：In order to overcome the deficiencies in the prior art, a kind of extraction wire of the utility model offer to have The single head mold heating tube of fine bend resistance effect.

Technical solution：To achieve the above object, the single head mold heating tube of the utility model include heat conducting pipe, heating wire with And extraction wire, the heating wire is arranged in the inner cavity of heat conducting pipe, and heating wire spirals into spring-like；The extraction wire has Two, two extraction wires are arranged in parallel in the hollow space in the heating wire of spring-like, and the length direction of extraction wire is flat Row all has one and reaches drawing outside the heat conducting pipe in the central axial direction of the heating wire of spring-like, every extraction wire Outlet；The both ends of the heating wire are separately fixed in two extraction wires, and the every extraction wire is by multiply conductor It is twisted；Gap in heat conducting pipe is filled with insulating heat-conductive powder.

Further, the screw pitch of the heating wire both ends part of spring-like is smaller, and the screw pitch of middle section is larger.

Further, the material of the insulating heat-conductive powder is magnesia.

Further, one end of the heat conducting pipe is provided with insulation sealed piece, the non-exit of the every extraction wire It is each attached on the insulation sealed piece.

Further, the other end of the heat conducting pipe is fixed with limit insulating part, and the limit insulating part seals described lead One end of heat pipe, and there is the limiting section for protruding from the heat conduction pipe outer wall, the extraction wire to insulate across the limit for it It is drawn out to after part described.

Further, the insulation sealed piece is fixed on the end of the heat conducting pipe by insulating cement.

Further, the heat conducting pipe is seamless heavy wall stainless steel tube.

Advantageous effect：The single head mold heating tube of the utility model is made using the extraction wire made of multiply conductor strand For the bridge that extraneous power supply is connect with heating wire, with good flexibility, the effect that bend resistance fractures is fine, and can guarantee Conductive is reliable and stable.

Description of the drawings

Attached drawing 1 is the structure chart of single head mold heating tube.

Specific implementation mode

The utility model is further described below in conjunction with the accompanying drawings.

Single head mold heating tube as shown in Fig. 1, including heat conducting pipe 1, heating wire 2 and extraction wire 3, the fever Silk 2 is arranged in the inner cavity of heat conducting pipe 1, and heating wire 2 spirals into spring-like；The extraction wire 3 has two, and two extractions are led Line 3 is arranged in parallel in the hollow space in the heating wire 2 of spring-like, and the length direction of extraction wire 3 is parallel to spring-like The central axial direction of heating wire 2, every extraction wire 3 all have an exit reached outside the heat conducting pipe 1；It is described The both ends of heating wire 2 are separately fixed in two extraction wires 3, and the every extraction wire 3 by multiply conductor strand and At；Gap in heat conducting pipe 1 is filled with insulating heat-conductive powder, and in the present embodiment, the material of the insulating heat-conductive powder is magnesia.

The screw pitch of the 2 both ends part of the heating wire of spring-like is smaller, and the screw pitch of middle section is larger.This setup It can make to generate heat in the axial direction of heating tube uniform, and then mold is evenly heated, reduce the temperature difference of heated portion on mold.

One end of the heat conducting pipe 1 is provided with insulation sealed piece 4, and the non-exit of the every extraction wire 3 is fixed On the insulation sealed piece 4.The insulation sealed piece 4 is fixed on the end of the heat conducting pipe 1 by insulating cement.

The other end of the heat conducting pipe 1 is fixed with limit insulating part 5, and the limit insulating part 5 seals the heat conducting pipe 1 One end, and there is the limiting section 51 for protruding from 1 outer wall of the heat conducting pipe, the extraction wire 3 to pass through the limit insulating part 5 for it After be drawn out to it is described.

In order to ensure that good thermal conductivity and wearability, the heat conducting pipe 1 are seamless heavy wall stainless steel tube.

The single head mold heating tube of the utility model is using the extraction wire made of multiply conductor strand as extraneous electricity The bridge that source is connect with heating wire, with good flexibility, the effect that bend resistance fractures is fine, and can guarantee it is conductive can By stabilization.

The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims

1. a kind of single head mold heating tube, it is characterised in that：Including heat conducting pipe (1), heating wire (2) and extraction wire (3), institute It states heating wire (2) to be arranged in the inner cavity of heat conducting pipe (1), and heating wire (2) spirals into spring-like；The extraction wire (3) has Two, two extraction wires (3) are arranged in parallel in the hollow space in the heating wire (2) of spring-like, and the length of extraction wire (3) Degree is oriented parallel to the central axial direction of the heating wire (2) of spring-like, and every extraction wire (3) all has one and reaches institute State the exit of heat conducting pipe (1) outside；The both ends of the heating wire (2) are separately fixed on two extraction wires (3), and every institute Extraction wire (3) is stated to be formed by multiply conductor strand；Gap in heat conducting pipe (1) is filled with insulating heat-conductive powder.

2. single head mold heating tube according to claim 1, it is characterised in that：The heating wire (2) both ends of spring-like Partial screw pitch is smaller, and the screw pitch of middle section is larger.

3. single head mold heating tube according to claim 1, it is characterised in that：The material of the insulating heat-conductive powder is oxidation Magnesium.

4. single head mold heating tube according to claim 1, it is characterised in that：One end of the heat conducting pipe (1) is provided with Insulate sealed piece (4), and the non-exit of the every extraction wire (3) is each attached on the insulation sealed piece (4).

5. single head mold heating tube according to claim 4, it is characterised in that：The other end of the heat conducting pipe (1) is fixed There is a limit insulating part (5), the limit insulating part (5) seals one end of the heat conducting pipe (1), and it has and protrudes from described lead The limiting section (51) of heat pipe (1) outer wall, the extraction wire (3) are drawn out to described after the limit insulating part (5).

6. single head mold heating tube according to claim 4, it is characterised in that：The insulation sealed piece (4) passes through insulation Glue is fixed on the end of the heat conducting pipe (1).

7. according to claim 1-6 any one of them single head mold heating tubes, it is characterised in that：The heat conducting pipe (1) is nothing Stitch heavy wall stainless steel tube.