CN201732635U

CN201732635U - Novel mold for producing plastic flat wire

Info

Publication number: CN201732635U
Application number: CN2009202417235U
Authority: CN
Inventors: 陈虎啸; 肖克俭; 张文华
Original assignee: JIANGXI CABLE CO Ltd
Current assignee: JIANGXI CABLE CO Ltd
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2011-02-02
Anticipated expiration: 2019-12-11

Abstract

The utility model discloses a novel mold for producing a plastic flat wire. The mold consists of a mold sleeve and a mold core, wherein the mold core and the mold sleeve are arranged at the end of a plastic extruding machine respectively; the mold core is fixed on a mold core seat through a screw thread; the mold sleeve is fixed on a mold sleeve seat; the wire bearing end part of the mold core is positioned between the wire bearing starting point and the wire bearing end part of the mold sleeve by adjusting a movable screw rod screw of the mold core seat; the mold sleeve (1) has circular stepped structure and the center of the mold sleeve has circular hole structure; the mold core (2) has conical and cylindrical transition structure; the center of the mold core (2) has runway hole-shaped structure for an insulation wire to pass through; and the size of the runway hole-shaped structure in the mold core can be 1 to 2 millimeters more than that of the insulation wire. The mold of the utility model can be arranged on extruders such as a phi-45 extruder, phi-60 extruder, a phi-80 extruder and the like and can meet requirements on the practical production specifications and manufacturing lengths of various plastic flat wires.

Description

Novel plastic lenticular wire production mould

Technical field

The utility model relates to plastics rectangular wire production mould, belongs to the electrical material manufacturing process technology field.

Background technology

The flat cotton covered wire of plastics is mainly used in the bright connection of adorning single-phase illumination and small-power electrical equipment, and the core number has 2 cores, 3 cores, and specification is 0.75～6mm ²This product design is attractive in appearance easy to use, and market capacity is big.

This kind product seems simple in structure, yet adopts different moulds of industrial equipment production to have more problem in actual production.Low as production efficiency, core shift, electric wire profile thickness inequality, insulation is sticking mutually with sheath, and the brachycephaly rate is high.Cause the main cause of these problems to be: traditional processing technology generally adopts φ 45 extruders, adopts plsitive mold production, and it is preceding through insulating powder on the flour stirring machine that core advances head.φ 45 extruder gel quantities are little, and the take-up reel finite capacity is to cause production efficiency low, the main cause that the lopping brachycephaly is more; The employing plsitive mold is produced, because core rod size and insulated wire cores size are approaching, mandrel tip and die sleeve end apart from each other are prone to quality problems such as sheath core shift; Can cause sheath profile thickness inequality if the insulated wire cores size has fluctuation, squash type production is another reason that causes inefficiency; If core is gone up powder through the flour stirring machine and is crossed and can block core rod at most and make the sheath outward appearance play drum, cause brachycephaly, if go up the not enough insulation of powder and sheath glues mutually, cause customer complaint.

In order to improve the problem that this product exists aborning, useful tubular molding tool is produced in the industry report and trial, effect is better, need not powder, above-mentioned four major problem solves basically, yet has brought new problem: the sheath pine is overlapped, loose phenomenon is inevitable; Moreover it is circular squeezing the tubular type core rod, and the easy kinking of insulating during sheath forms the cable problem of appearance; Lopping brachycephaly rate is higher; Therefore, have with the producer of squeezing pipe and squash type production in the industry.

Summary of the invention

The purpose of this utility model is in order to overcome traditional tubular molding tool and plsitive mold producing the problems that the flat cotton covered wire of plastics exists, to propose a kind of novel plastic lenticular wire production mould that is similar to half tubular molding tool.

The technical solution of the utility model is that the utility model plastics lenticular wire production mould is made up of die sleeve and core rod.Core rod, die sleeve are installed on extrusion head respectively, and wherein core rod is fixed on the core rod seat by screw thread, and die sleeve is fixed on the die sleeve seat, and tight die sleeve seat doubling-up; By regulating the movable screw mandrel silk of core rod seat, make core rod hold thread end and be positioned at die sleeve and hold in the middle of line starting point and the end.

Die sleeve (1) profile is the step cutting pattern structure, and the center is the circle hole shape structure; Core rod (2) profile is conical and cylindrical transition structure, the runway shape pore structure of center for supplying insulated wire cores to pass through, and the displacement of restriction core is reversed; Die sleeve and core rod are positioned on the same axis during to mould, and mandrel tip (21) is positioned at die sleeve and holds the line middle part, and sheath has certain extruding force during production, can prevent effectively that loose phenomenon from taking place; Big 1～the 2mm of the comparable insulated wire cores size of core rod size when the core size has fluctuation, can pass through core rod smoothly, and outward appearance is unaffected; The core rod outer end is circular to cooperate with die sleeve, and to mould, the adjusting core shift is simple, in case mix up then stablize, is not offset, and the easy core shift problem of sheath is resolved; Insulated wire need not powder during production, the sheath and the phenomenon that do not stick together that insulate; This kind mould can be provided on φ 65 or the bigger extruder and use, and production efficiency greatly improves.

The utility model with the beneficial effect that the prior art tubular molding tool is compared is, the utlity model has production efficiency height, mould and processes easily that apolegamy, sheath core shift are easy to control, insulated wire cores need not advantages such as powder isolation.Overcome easily problem such as pine cover, the easy kinking of insulation of its sheath simultaneously.It is low that the utility model has overcome the intrinsic production efficiency of squash type mould, join the mould difficulty, easily produce core shift, sheath with insulation adhesion mutually, be prone to defectives such as cable problem of appearance, from actual effect, production efficiency improves about 5～8 times, effect is better.

Mould of the present utility model can be installed on extruders such as φ 45, φ 60, φ 80, the needs of applicable various plastics lenticular wire actual production specifications and factory length.

Description of drawings

Fig. 1 is the utility model plastics lenticular wire production mould structural representation;

Fig. 2 is the cutaway view of the utility model mould die sleeve;

Fig. 3 is the cutaway view of the utility model mould core;

Fig. 4 is the A-A cross-sectional view of mandrel tip runway shape pore structure;

Picture in picture number expression: (1) die sleeve; (11) die sleeve holds thread end; (12) die sleeve holds the line starting point; (2) core rod; (21) core rod holds thread end.

Embodiment

The utility model embodiment as shown in Figure 1, Fig. 1 is the structure chart of present embodiment mould die sleeve, Fig. 2 is the structure cutaway view of present embodiment mould die sleeve, Fig. 3 is the structure cutaway view of present embodiment mould core.

Die sleeve (1) is the circle hole shape structure, and core rod (2) centre bore is a runway shape pore structure.With core rod (2), die sleeve (1) is installed on extrusion head respectively, and wherein core rod is fixed on the core rod seat by screw thread, and die sleeve is fixed on the die sleeve seat, and tight die sleeve seat doubling-up; By regulating the movable screw mandrel silk of core rod seat, make core rod hold thread end and be positioned at die sleeve and hold in the middle of line starting point and the end.

Core is passed core rod, link to each other with draught line, start extruder, the sheath molding machine is wrapped on the insulated wire cores along the runner between die sleeve and core rod, and adjustment screw is adjusted core shift, starts to extrude the unit traction, can extrude out flat cable.Cable gets final product printing identification through water cooling, closes on the drum.

Mould of the present utility model can be installed on, and extruders such as φ 45, φ 60, φ 80 are to adapt to the needs of actual production specification and factory length.

Claims

1. a novel plastic lenticular wire production mould is characterized in that described mould is made up of die sleeve and core rod, and die sleeve and core rod are positioned on the same axis during to mould, and mandrel tip (21) is positioned at die sleeve and holds the line middle part.

2. novel plastic lenticular wire production mould according to claim 1 is characterized in that, described die sleeve (1) profile is the step cutting pattern structure, and the center is the circle hole shape structure; Core rod (2) profile is conical and cylindrical transition structure, the runway shape pore structure of core rod (2) center for supplying insulated wire cores to pass through.

3. novel plastic lenticular wire production mould according to claim 1 is characterized in that, described core rod inner track shape hole dimension is than the big 1～2mm of insulated wire cores size.