阅读说明：本技术 一种电缆生产用绝缘挤出设备 (Cable manufacture is with insulating extrusion equipment ) 是由 赵玉所 余宗仁 于 2019-10-16 设计创作，主要内容包括：本发明公开的一种电缆生产用绝缘挤出设备,包括挤塑机头,其特征在于,挤塑机头的一侧设挤塑塑化机构,挤塑塑化机构上端设下料机构,下料机构包括料斗、碾压破碎组件、第一送料装置和第二送料装置,挤塑塑化机构包括挤塑筒体和挤塑螺杆,本发明结构简单、设计合理,具备碾压、破碎电缆料的功能,且可对电缆料进行预热,降低熔融难度,挤塑螺杆分段设计,具备捏合、增大剪切应力、加速排气和降低挤压倒流的效果,可有效提高混合效果、排气效率、熔融效率,保证电缆挤塑效果,提高电缆外绝缘性能。(The invention discloses an insulating extrusion device for cable production, which comprises an extrusion molding machine head and is characterized in that an extrusion molding plasticizing mechanism is arranged on one side of the extrusion molding machine head, a blanking mechanism is arranged at the upper end of the extrusion molding plasticizing mechanism, the blanking mechanism comprises a hopper, a rolling and crushing component, a first feeding device and a second feeding device, and the extrusion molding plasticizing mechanism comprises an extrusion molding barrel and an extrusion molding screw.)

1. The utility model provides an insulating extrusion equipment is used in cable manufacture, is including the extrusion molding aircraft nose that is used for the cable extrusion molding, its characterized in that, one side of extrusion molding aircraft nose is equipped with the extrusion molding plastify mechanism who supplies with melting cable material, the quantity of extrusion molding plastify mechanism is a plurality of, is 2 at least, and its upper end is equipped with the unloading mechanism that is used for supplying with the cable material.

2. The insulating extrusion device for cable production according to claim 1, wherein the feeding mechanism comprises a hopper, a crushing assembly, a first feeding device and a second feeding device, the crushing assembly is disposed under the hopper, the upper end of the crushing assembly is communicated with the hopper, the lower end of the crushing assembly is communicated with the upper end of the first feeding device, 2 crushing rollers for crushing are disposed in the crushing assembly, the 2 crushing rollers are horizontally and symmetrically disposed and are controlled by a motor to rotate, the first feeding device is a feeding auger and is obliquely disposed, the upper end of the first feeding device is a feeding end, the lower end of the first feeding device is a discharging end, the upper end of the first feeding device is communicated with the crushing assembly, the lower end of the first feeding device is communicated with the second feeding device, the second feeding device is a feeding auger, one end of the second feeding device is communicated with the lower end of the first feeding device, and the other end of the second feeding device is communicated with the plurality of extrusion plasticizing mechanisms through a first heat preservation pipeline, and conveying the cable material to an extrusion plasticizing mechanism.

3. The insulation extrusion apparatus for cable production as claimed in claim 2, wherein 2 of said lamination rolls rotate in opposite directions.

4. The insulation extrusion apparatus for cable production according to claim 3, wherein the first feeding device is a feeding auger, and comprises a first barrel and a first feeding shaft, the first feeding shaft is axially arranged along the first barrel and driven by a motor, a spiral feeding blade is arranged on the outer wall of the first feeding shaft, the feeding blade is uniformly provided with arc-shaped notches, and the arc-shaped notches are provided with arc-shaped cutting edges.

5. The insulation extrusion device for cable production according to claim 4, wherein the second feeding device is a feeding auger and comprises a second cylinder, and a first heater for preheating the cable material is embedded in the second cylinder.

6. An insulation extrusion device for cable production according to claim 5, wherein the extrusion molding plasticizing mechanism comprises an extrusion molding barrel and an extrusion molding screw, the extrusion molding screw is axially arranged along the extrusion molding barrel, one end of the extrusion molding screw is connected with the extrusion molding motor through a gear box and is driven by the extrusion molding motor to rotate, the extrusion molding barrel comprises an extrusion molding inlet and an extrusion molding outlet, the extrusion molding inlet is communicated with the second feeding device through a first heat preservation pipeline, the extrusion molding outlet is communicated with the extrusion molding discharge header through a second heat preservation pipeline, the extrusion molding outlets of the extrusion molding plasticizing mechanisms are converged at the extrusion molding discharge header, and the extrusion molding discharge header is a heat preservation pipe which is connected with the extrusion molding machine head to extrude the cable.

7. The insulation extrusion apparatus for cable production according to claim 6, wherein the extrusion molding screw is axially divided into a feeding section, a kneading section and a melting section in sequence, the outer wall of the feeding section is provided with a pushing blade, the pushing blade is helical, the kneading section is provided with a plurality of kneading rings, the plurality of kneading rings are sequentially arranged at equal intervals along the axis of the kneading section, the kneading rings protrude from the outer surface of the kneading section and are frustum-shaped, and the outer surface of the frustum-shaped kneading rings is provided with kneading grooves which are umbrella-shaped.

8. An insulating extrusion apparatus for cable production according to claim 7, wherein a multi-stage heater is embedded in the extrusion cylinder, and a second heater corresponding to the feeding stage, a third heater corresponding to the kneading stage and a fourth heater corresponding to the melting stage are provided.

9. The insulated extrusion apparatus of claim 8, wherein a constant temperature heater for keeping and regulating the temperature of the molten cable material is embedded in the extrusion manifold.

10. The insulation extrusion apparatus for cable production as claimed in claim 9, wherein the insulation extrusion apparatus for cable production is operated by:

(1) the cable material is fed to the extrusion molding plasticizing mechanism through a blanking mechanism, stored in a hopper and then falls into a rolling crushing assembly, rolling and crushing are carried out under the action of opposite extrusion and rolling of a rolling roller, the particle diameter of the cable material after rolling and crushing is reduced, the cable material enters a first feeding device, a first feeding shaft of the first feeding device rotates, the cable material is pushed through a feeding blade, meanwhile, the cable material is crushed again through an arc cutting edge at an arc notch, the cable material with low particle size enters a second feeding device after the feeding and crushing are completed, the cable material is preheated and softened under the action of a first heater, and finally, the cable material enters the extrusion molding plasticizing mechanism through a first heat insulation pipeline;

(2) the cable material entering the extrusion plasticizing mechanism and preheated and softened gradually moves towards the extrusion molding machine head under the action of the extrusion molding screw; at the moment, the softened cable material firstly enters the material feeding section, is fed through the material feeding section, generates shear stress and is heated by the second heater, so that the temperature is quickly raised and the cable material is uniformly mixed; then the cable material enters a kneading section, is extruded and kneaded between a kneading ring and an extrusion molding cylinder, is rapidly heated and exhausted to accelerate melting and plasticizing, and finally enters a melting section, is extruded and rubbed between a screw groove and the extrusion molding cylinder in the melting section and is rapidly heated, so that the gas and the plasticizing are fully exhausted;

(3) treat cable material abundant melting, exhaust, behind the plastify, promptly for melting cable material, melting cable material passes through second insulating tube, gets into extrusion molding ejection of compact house steward to get into the extrusion molding aircraft nose through extrusion molding ejection of compact house steward, carry out the extrusion molding to the cable, the melting cable material that gets into second insulating tube keeps warm and adjusts the extrusion molding temperature through constant temperature heating ware in second insulating tube.

Technical Field

The invention relates to the technical field of cable processing production, in particular to an insulation extrusion device for cable production.

Background

Electrical cables are typically rope-like cables made up of several or groups of conductors stranded together and often characterized by an inner, electrically conductive, outer insulation.

In the production of the cable, the outer insulating layer of the inner conductor is usually extruded, and the molten cable material is extruded and coated on the inner conductor through an extrusion molding machine head through melting and plasticizing of the cable material to form the cable.

Extrusion molding is gone on through using extrusion molding equipment, and conventional extruding machine does not possess the crushing function of cable material, and the cable material of large granule often has the insufficient problem of melting at the in-process of melting, mixes solid particle easily, seriously influences the extrusion molding effect, moreover, lacks necessary preheating function, is unfavorable for the promotion of extrusion molding efficiency.

Disclosure of Invention

The invention aims at the problems and discloses an insulation extrusion device for cable production.

The specific technical scheme is as follows:

the utility model provides an insulating extrusion equipment is used in cable manufacture, is including the extrusion molding aircraft nose that is used for the cable extrusion molding, its characterized in that, one side of extrusion molding aircraft nose is equipped with the extrusion molding plastify mechanism who supplies with melting cable material, the quantity of extrusion molding plastify mechanism is a plurality of, is 2 at least, and its upper end is equipped with the unloading mechanism that is used for supplying with the cable material.

The insulating extrusion equipment for cable production comprises a hopper, a rolling crushing assembly, a first feeding device and a second feeding device, wherein the rolling crushing assembly is arranged under the hopper, the upper end of the rolling crushing assembly is communicated with the hopper, the lower end of the rolling crushing assembly is communicated with the upper end of the first feeding device, 2 rolling rollers which are extruded are arranged in the rolling crushing assembly and are horizontally symmetrically arranged and are rotated by being controlled by a motor, the first feeding device is a feeding auger and is obliquely arranged, the upper end of the first feeding device is a feeding end, the lower end of the first feeding device is a discharging end, the upper end of the first feeding device is communicated with the rolling crushing assembly, the lower end of the first feeding device is communicated with the second feeding device, the second feeding device is a feeding auger, one end of the second feeding device is communicated with the lower end of the first feeding device, the other end of the second feeding device is communicated with a plurality of extrusion molding plasticizing mechanisms through a first heat insulation, and conveying the cable material to an extrusion plasticizing mechanism.

The insulating extrusion equipment for cable production is characterized in that the rotation directions of the 2 rolling rolls are opposite.

Foretell cable manufacture is with insulating extrusion equipment, wherein, first material feeding unit is the pay-off auger, including first barrel and first pay-off axle, first pay-off axle sets up along first barrel axial to through motor drive, be equipped with spiral helicine feeding vane on the outer wall of first pay-off axle, evenly be equipped with the arc breach on the feeding vane, arc cutting edge is located to establish arc breach.

The insulating extrusion equipment for cable production is characterized in that the second feeding device is a feeding auger and comprises a second cylinder body, and a first heater for preheating cable materials is embedded in the second cylinder body.

Foretell cable manufacture is with insulating extrusion equipment, wherein, extrusion molding plastify mechanism includes extrusion molding barrel and extrusion molding screw rod, the extrusion molding screw rod sets up along extrusion molding barrel axial, and its one end passes through the gear box and links to each other with the extrusion molding motor to rotate through extrusion molding motor drive, the extrusion molding barrel includes extrusion molding import and extrusion molding export, the extrusion molding import is through first heat preservation pipe and second material feeding unit intercommunication, the extrusion molding export communicates with the extrusion molding ejection of compact house steward through second heat preservation pipe, and a plurality of extrusion molding plastify mechanism's extrusion molding export is assembled in extrusion molding ejection of compact house steward department, the extrusion molding ejection of compact house steward is the insulating tube, and it is connected with the extrusion molding aircraft nose, carries out.

The insulating extrusion equipment for cable production is characterized in that the extrusion molding screw is sequentially divided into a feeding section, a kneading section and a melting section along the axial direction, pushing blades are arranged on the outer wall of the feeding section and are spiral, kneading sections are provided with kneading rings, the number of the kneading rings is multiple, the kneading rings are sequentially arranged at equal intervals along the axial line of the kneading sections, the kneading rings protrude out of the outer surface of the kneading section and are frustum-shaped, and kneading grooves which are distributed in an umbrella shape are formed in the outer surface of the frustum shape of the kneading rings.

The insulating extrusion equipment for cable production is characterized in that a multi-section heater, a second heater corresponding to the feeding section, a third heater corresponding to the kneading section and a fourth heater corresponding to the melting section are embedded in the extrusion molding barrel.

Foretell cable manufacture is with insulating extrusion equipment, wherein, the embedded constant temperature heater who is used for melting cable material heat preservation and adjusts the temperature that is equipped with in extrusion molding discharge header.

The insulation extrusion equipment for cable production comprises the following working methods:

(1) the cable material is fed to the extrusion molding plasticizing mechanism through a blanking mechanism, stored in a hopper and then falls into a rolling crushing assembly, rolling and crushing are carried out under the action of opposite extrusion and rolling of a rolling roller, the particle diameter of the cable material after rolling and crushing is reduced, the cable material enters a first feeding device, a first feeding shaft of the first feeding device rotates, the cable material is pushed through a feeding blade, meanwhile, the cable material is crushed again through an arc cutting edge at an arc notch, the cable material with low particle size enters a second feeding device after the feeding and crushing are completed, the cable material is preheated and softened under the action of a first heater, and finally, the cable material enters the extrusion molding plasticizing mechanism through a first heat insulation pipeline;

(2) the cable material entering the extrusion plasticizing mechanism and preheated and softened gradually moves towards the extrusion molding machine head under the action of the extrusion molding screw; at the moment, the softened cable material firstly enters the material feeding section, is fed through the material feeding section, generates shear stress and is heated by the second heater, so that the temperature is quickly raised and the cable material is uniformly mixed; then the cable material enters a kneading section, is extruded and kneaded between a kneading ring and an extrusion molding cylinder, is rapidly heated and exhausted to accelerate melting and plasticizing, and finally enters a melting section, is extruded and rubbed between a screw groove and the extrusion molding cylinder in the melting section and is rapidly heated, so that the gas and the plasticizing are fully exhausted;

(3) treat cable material abundant melting, exhaust, behind the plastify, promptly for melting cable material, melting cable material passes through second insulating tube, gets into extrusion molding ejection of compact house steward to get into the extrusion molding aircraft nose through extrusion molding ejection of compact house steward, carry out the extrusion molding to the cable, the melting cable material that gets into second insulating tube keeps warm and adjusts the extrusion molding temperature through constant temperature heating ware in second insulating tube.

The invention has the beneficial effects that:

the invention discloses an insulating extrusion device for cable production, which comprises an extrusion molding machine head and is characterized in that an extrusion molding plasticizing mechanism is arranged on one side of the extrusion molding machine head, a blanking mechanism is arranged at the upper end of the extrusion molding plasticizing mechanism, the blanking mechanism comprises a hopper, a rolling and crushing component, a first feeding device and a second feeding device, and the extrusion molding plasticizing mechanism comprises an extrusion molding barrel and an extrusion molding screw.

Drawings

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a sectional view of the blanking mechanism.

Fig. 3 is a partial schematic view of a feeder blade.

FIG. 4 is a sectional view of an extrusion plasticizing mechanism.

FIG. 5 is a schematic view of a kneading ring.

Detailed Description

In order to make the technical solution of the present invention clearer and clearer, the present invention is further described below with reference to embodiments, and any solution obtained by substituting technical features of the technical solution of the present invention with equivalents and performing conventional reasoning falls within the scope of the present invention.