CN217891794U

CN217891794U - Steel wire rope extrusion molding die

Info

Publication number: CN217891794U
Application number: CN202221950557.8U
Authority: CN
Inventors: 张巴图; 陈强; 李海滨; 徐志平; 高俊峰; 苏春雨; 乔东青; 聂忠叶; 张殿辉; 郭培; 张志杰; 郭俊义; 宫福敏; 张成宇; 周中东; 辛云波; 刘修海
Original assignee: Guizhou Steel Rope Co Ltd; Shenhua Zhungeer Energy Co Ltd
Current assignee: Guizhou Steel Rope Co Ltd; Shenhua Zhungeer Energy Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-25
Anticipated expiration: 2032-07-26

Abstract

The utility model provides a wire rope extrusion molding mould. The steel wire rope extrusion molding die comprises: the mold sleeve is provided with a first hollow cavity, the first hollow cavity comprises a first cavity section and a second cavity section which are sequentially connected, the first cavity section is a first gradually-reducing section, and the second cavity section is connected with one end of the first cavity section, which gradually shrinks; the mold core is provided with a second hollow cavity, one end of the mold core extends into the first hollow cavity from one end, far away from the second cavity, of the first cavity section so as to enable the first hollow cavity to be communicated with the second hollow cavity, the outer side wall of the portion, extending into the mold sleeve, of the mold core and the inner side wall of the first cavity section enclose a plastic input channel, and one end, far away from the mold sleeve, of the mold core is provided with a steel wire rope inlet communicated with the second hollow cavity. The utility model provides an among the prior art problem that extrusion molding wire rope performance is poor.

Description

Steel wire rope extrusion molding die

Technical Field

The utility model relates to a wire rope extrusion molding equipment field particularly, relates to a wire rope extrusion molding mould.

Background

The extrusion molding of the steel wire rope means that the surface of the steel wire rope is coated with plastics, and an extrusion molding die consists of a die core and a die sleeve. According to the process technology and the product quality requirement, the diameter of the steel wire rope after extrusion molding is kept uniform in wall thickness; the plastic is bonded on the surface of the steel wire rope and filled in gaps among the steel wires, and the plastic is required to be firmly bonded with the steel wires; the surface of the coating is smooth (the surface of the whole plastic-coated steel wire rope has no convex-concave and incomplete parts and has good harness performance). And the fusion property, the flow property, the bonding property and the like of the plastic (polyethylene and polypropylene) are combined through a die technology, so that the plastic is bonded with the metal, and the inner layer plastic and the outer layer plastic, and the bonding stability and the firmness of the steel wire rope and the plastic are met. The plastic is completely filled in the gaps of the section of the steel wire rope in the extrusion molding process, the section is compact, and the technical requirements of product quality detection and long-term service life of the product are met.

The plastic-extruded steel wire rope is one of steel wire rope plastic-coated products, and the purpose of plastic coating on the surface of the steel wire rope is mainly as follows: corrosion resistance, acid resistance, alkali resistance, buffering, equipment protection and the like. The main application of the product is as follows: the engineering fields of mining machinery, ports and docks, water conservancy and hydropower, bridge construction, ocean engineering and the like. The plastic-coated steel wire rope is a deep-processed high-added-value product, has a wide application range, and has huge market demand in many engineering projects. At present, manufacturers for producing plastic-coated steel wire ropes at home and abroad have uneven product quality, the phenomenon that surface plastic peels off (the plastic is not firmly bonded) generally exists in the market feedback plastic-coated steel wire rope in the using process, the using effect of a user in the actual operation process is directly influenced, and the unqualified rate of the plastic-coated steel wire rope products in the market is high.

Therefore, the problem of poor usability of extruded steel cords exists in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a wire rope extrusion molding mould to solve the poor problem of extrusion molding wire rope performance among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a wire rope extrusion molding die, including: the mold sleeve is provided with a first hollow cavity, the first hollow cavity comprises a first cavity section and a second cavity section which are sequentially connected, the first cavity section is a first gradually-reducing section, and the second cavity section is connected with one end of the first cavity section, which gradually shrinks; the mold core is provided with a second hollow cavity, one end of the mold core extends into the first hollow cavity from one end, far away from the second cavity, of the first cavity section so as to enable the first hollow cavity to be communicated with the second hollow cavity, the outer side wall of the portion, extending into the mold sleeve, of the mold core and the inner side wall of the first cavity section enclose a plastic input channel, and one end, far away from the mold sleeve, of the mold core is provided with a steel wire rope inlet communicated with the second hollow cavity.

Furthermore, a first opening and a second opening which are respectively communicated with the first hollow cavity are formed in two ends of the die sleeve, the die core extends into the first hollow cavity from the first opening, a third opening is formed in one end, extending into the first hollow cavity, of the die core, and the distance from the third opening to the first opening is smaller than the distance from the third opening to the second opening.

Further, the diameter of the third opening is smaller than the diameter of the second opening; the diameter of the second opening is smaller than the diameter of the first opening.

Further, the diameter of the rope inlet is larger than the diameter of the third opening.

Further, the axis of the first hollow cavity is coincident with the axis of the second hollow cavity.

Further, the radial cross-sectional area of the plastic feed channel decreases in a direction approaching the second cavity section.

Furthermore, a transition gap is formed between one end, extending into the first cavity section, of the mold core and one end, close to the first cavity section, of the second cavity section.

Further, the second cavity section includes the sizing section and the second convergent section of connecting in order, and the one end that the sizing section was kept away from to the second convergent section is connected with first convergent section, and the second convergent section is followed the direction that is close to the sizing section and is reduced gradually.

Furthermore, one end, far away from the die sleeve, of the die core is provided with a third gradually-reducing section communicated with the second hollow cavity, the steel wire rope inlet is communicated with the second hollow cavity through the third gradually-reducing section, and the third gradually-reducing section gradually shrinks along the direction close to the second hollow cavity.

Further, the diameter of one end, far away from the second hollow cavity, of the third tapered section is smaller than that of one end, far away from the second cavity section, of the first cavity section.

Use the technical scheme of the utility model, wire rope extrusion molding mould in this application includes die sleeve and mold core. The die sleeve is provided with a first hollow cavity, the first hollow cavity comprises a first cavity section and a second cavity section which are sequentially connected, the first cavity section is a first gradually-reducing section, and the second cavity section is connected with one end of the first cavity section, which gradually reduces; the mold core is provided with a second hollow cavity, one end of the mold core extends into the first hollow cavity from one end, far away from the second cavity, of the first cavity section so as to enable the first hollow cavity to be communicated with the second hollow cavity, the outer side wall of the portion, extending into the mold sleeve, of the mold core and the inner side wall of the first cavity section enclose a plastic input channel, and one end, far away from the mold sleeve, of the mold core is provided with a steel wire rope inlet communicated with the second hollow cavity.

When using wire rope extrusion molding mould in this application, treat that the wire rope of plastic-coated passes through the mold core and keeps away from the one end of die sleeve and gets into the mold core and pass through second in the chamber and the first well chamber in turn, and plasticized plastics then passes through plastics input channel and gets into first well chamber to loop through first chamber section and second chamber section. Therefore, the steel wire rope to be coated with plastic can be coated with plastic in the second cavity section of the first hollow cavity, and the second cavity section extends out of the die sleeve after the plastic coating is finished, so that the plastic coating quality of the steel wire rope is improved. Consequently, wire rope extrusion molding mould in this application has solved the poor problem of extrusion molding wire rope performance among the prior art effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a steel wire rope extrusion molding die according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. die sleeve; 11. a first cavity section; 12. a second cavity section; 121. a sizing section; 122. a second tapered section; 20. a mold core; 21. a second hollow cavity; 22. a third tapered section.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional terms such as "upper, lower, top, bottom" generally refer to the orientation as shown in the drawings, or to the component itself being oriented in a vertical, perpendicular, or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the poor problem of extrusion molding wire rope performance among the prior art, this application provides a wire rope extrusion molding mould.

As shown in fig. 1, the extrusion die for steel cord of the present application includes a die case 10 and a die core 20. The die sleeve 10 is provided with a first hollow cavity, the first hollow cavity comprises a first cavity section 11 and a second cavity section 12 which are sequentially connected, the first cavity section 11 is a first gradually-reducing section, and the second cavity section 12 is connected with one end of the first cavity section 11 which gradually reduces; the mold core 20 is provided with a second hollow cavity 21, one end of the mold core 20 extends into the first hollow cavity from one end of the first cavity section 11 far away from the second cavity section 12 so as to enable the first hollow cavity to be communicated with the second hollow cavity 21, the outer side wall of the portion, extending into the mold sleeve 10, of the mold core 20 and the inner side wall of the first cavity section 11 enclose a plastic input channel, and one end of the mold core 20 far away from the mold sleeve 10 is provided with a steel wire rope inlet communicated with the second hollow cavity 21.

When using the steel wire rope extrusion molding mould in this application, the steel wire rope of treating the plastic-coated gets into mold core 20 and passes through second cavity 21 and first cavity in turn through the one end that mold core 20 kept away from die sleeve 10, and plasticized plastics then gets into first cavity through plastics input channel to loop through first chamber section 11 and second chamber section 12. Therefore, the steel wire rope to be coated with the plastic can be coated in the second cavity section 12 of the first hollow cavity, and the second cavity section 12 extends out of the die sleeve 10 after the coating is finished, so that the quality of the steel wire rope coating is improved. Consequently, wire rope extrusion molding mould in this application has solved the poor problem of extrusion molding wire rope performance among the prior art effectively.

In an embodiment of the present application, two ends of the mold sleeve 10 have a first opening and a second opening respectively communicated with the first hollow cavity, the mold core 20 extends into the first hollow cavity from the first opening, one end of the mold core 20 extending into the first hollow cavity has a third opening, and a distance from the third opening to the first opening is smaller than a distance from the third opening to the second opening. And the diameter of the third opening is smaller than the diameter of the second opening; the diameter of the second opening is smaller than the diameter of the first opening. Meanwhile, the diameter of the steel wire rope inlet is larger than that of the third opening.

Specifically, the axis of the first hollow cavity coincides with the axis of the second hollow cavity 21.

In one particular embodiment of the present application, the radial cross-sectional area of the plastic feed channel decreases progressively in a direction approaching the second cavity segment 12. And, the second cavity segment 12 includes a sizing segment 121 and a second tapering segment 122 connected in sequence, one end of the second tapering segment 122 far from the sizing segment 121 is connected with the first tapering segment, and the second tapering segment 122 tapers in a direction close to the sizing segment 121. Meanwhile, one end of the mold core 20, which is far away from the mold sleeve 10, is provided with a third tapered section 22 communicated with the second hollow cavity 21, the steel wire rope inlet is communicated with the second hollow cavity 21 through the third tapered section 22, and the third tapered section 22 gradually shrinks along a direction close to the second hollow cavity 21. Through such setting, can make the wire rope extrusion molding mould in this application can satisfy various dimensions wire rope plastic-coated process technique and requirements for quality, and the biggest advantage is through carrying out hierarchical design with the mould tapering, makes the die cavity increase to the pressure of die orifice gradually, and plasticized plastics are extruded under high pressure and are coated inside the wire rope and the surface to improve plastics and wire rope's adhesion stress, realize wire rope surface plastic coating durable, product quality is stable, and the mould simple manufacture. And set up sizing section 121 can guarantee that the diameter of the wire rope after the plastic-coated is more even at second cavity segment 12 to guarantee product quality.

It should be noted that, in the present application, the taper step design of the wire rope extrusion die is realized by the first tapered section and the second tapered section 122, and the gradual pressure increase from the die cavity to the die orifice is realized.

Optionally, there is a transition gap between the end of the mold core 20 that extends into the first cavity segment 11 and the end of the second cavity segment 12 that is adjacent to the first cavity segment 11.

Optionally, the diameter of the end of the third tapered section 22 away from the second hollow cavity 21 is smaller than the diameter of the end of the first cavity section 11 away from the second cavity section 12. Through the arrangement, plastics can enter the plastic input channel more easily, so that the plastic coating quality and the plastic coating efficiency of the steel wire rope are ensured.

When wire rope extrusion molding mould in this application was used to the actual production in-process, with wire rope from mold core 20, the die sleeve 10 passes between two parties, mold core 20 die sleeve 10 is installed at the fixed station of extruding machine aircraft nose, start the extruding machine, wire rope makes linear motion according to rated speed, plastics form the fluid after high temperature heating, the plastics that extruding machine drive screw will melt are carried to mold core 20 die sleeve 10 position, and get into die sleeve 10 through plastics input channel, mold core 20 die sleeve 10 main function is: and determining the thickness of the plastic-coated layer and the diameter of the plastic-coated steel wire rope. The pressure is increased by adopting a step-by-step pressurization mode, the ratio of the pressure, the speed and the cohesiveness of each cavity is strictly calculated, and proper taper is selected to ensure that the proper pressure is kept in the process that the plastic flows from the mold cavity to the mold opening, so that the plastic is fully and completely filled into all gaps between steel wires of the steel wire rope, and the firm bonding between the plastic and the metal is ensured.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem that the extruded steel wire rope in the prior art is poor in service performance is effectively solved;

2. simple structure and stable performance.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel wire rope extrusion molding die is characterized by comprising:

the die sleeve (10) is provided with a first hollow cavity, the first hollow cavity comprises a first cavity section (11) and a second cavity section (12) which are sequentially connected, the first cavity section (11) is a first gradually-reducing section, and the second cavity section (12) is connected with one end, gradually contracted, of the first cavity section (11);

mold core (20), cavity (21) in the second has in mold core (20), the one end of mold core (20) by keep away from in first chamber section (11) the one end of second chamber section (12) stretches into in the first cavity, so that in the first cavity with cavity (21) intercommunication in the second, mold core (20) stretch into the lateral wall of the part of die sleeve (10) with the inside wall of first chamber section (11) encloses into plastics input channel, mold core (20) are kept away from the one end of die sleeve (10) have with the wire rope entry of cavity (21) intercommunication in the second.

2. A steel wire rope extrusion molding die according to claim 1, wherein both ends of the die sleeve (10) are provided with a first opening and a second opening respectively communicated with the first hollow cavity, the die core (20) extends into the first hollow cavity from the first opening, one end of the die core (20) extending into the first hollow cavity is provided with a third opening, and the distance from the third opening to the first opening is smaller than that from the third opening to the second opening.

3. A steel cord extrusion die as claimed in claim 2,

the diameter of the third opening is smaller than the diameter of the second opening;

the diameter of the second opening is smaller than the diameter of the first opening.

4. A steel cord extrusion die as claimed in claim 2, wherein the diameter of the steel cord inlet is greater than the diameter of the third opening.

5. A steel cord extrusion die as claimed in claim 1, wherein the axis of the first hollow cavity coincides with the axis of the second hollow cavity (21).

6. A steel cord extrusion die according to claim 1, wherein the radial cross-sectional area of said plastic feed channel decreases gradually in a direction approaching said second cavity section (12).

7. A steel cord extrusion die according to any one of claims 1 to 6, wherein there is a transition gap between the end of the die core (20) extending into the first cavity section (11) and the end of the second cavity section (12) close to the first cavity section (11).

8. A steel cord extrusion die according to any one of claims 1 to 6, wherein the second cavity section (12) comprises a sizing section (121) and a second tapered section (122) connected in series, an end of the second tapered section (122) distal from the sizing section (121) being connected with the first tapered section, and the second tapered section (122) tapering in a direction approaching the sizing section (121).

9. A steel wire rope extrusion molding die according to any one of claims 1 to 6, wherein one end of the mold core (20) away from the mold sleeve (10) is provided with a third tapered section (22) communicated with the second hollow cavity (21), the steel wire rope inlet is communicated with the second hollow cavity (21) through the third tapered section (22), and the third tapered section (22) is gradually contracted in a direction close to the second hollow cavity (21).

10. A steel cord extrusion die according to claim 9, wherein the diameter of the end of the third tapered section (22) remote from the second hollow cavity (21) is smaller than the diameter of the end of the first cavity section (11) remote from the second cavity section (12).