CN219505394U - Wire and cable sheath extrusion die - Google Patents
Wire and cable sheath extrusion die Download PDFInfo
- Publication number
- CN219505394U CN219505394U CN202320040126.6U CN202320040126U CN219505394U CN 219505394 U CN219505394 U CN 219505394U CN 202320040126 U CN202320040126 U CN 202320040126U CN 219505394 U CN219505394 U CN 219505394U
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- CN
- China
- Prior art keywords
- core wire
- wire
- channel
- inner die
- die structure
- Prior art date
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- 238000001125 extrusion Methods 0.000 title claims abstract description 39
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses an extrusion die for a wire and cable sheath, which comprises an outer die and an inner die structure, wherein an extrusion opening and a fluid cavity are arranged on the outer die, the extrusion opening is communicated with the fluid cavity, the inner die structure is arranged in the fluid cavity and coaxially arranged with the outer die, a core wire channel is arranged on the inner die structure, a plurality of drainage channels and containing cavities are further arranged on the inner die structure, the drainage channels are communicated with the fluid cavity and the containing cavities, the core wire channel comprises a first core wire channel and a second core wire channel, the first core wire channel is arranged on one side, close to the extrusion opening, of the inner die structure and is communicated with the containing cavity, the second core wire channel is arranged on one side, far away from the extrusion opening, of the inner die structure and extends towards the direction of the first core wire channel, and the second core wire channel is communicated with the containing cavity.
Description
Technical Field
The utility model relates to the technical field of wire and cable sheath extrusion dies, in particular to a wire and cable sheath extrusion die.
Background
The extruder, also called as extruder, is one kind of wire and cable equipment for extruding core wire of wire and cable and has the main function of coating insulating material around metal wire to produce wire and cable for industrial and life. At present, when the wire and cable sheath production process is carried out, because the core wire structure is not round and the surface is uneven, in the process of extruding and wrapping the insulating rubber material on the surface of the core wire to form the sheath, the sheath can form uneven corrugation along the sunken lines of the core wire, so that the appearance of a wire can be influenced, the appearance of the wire can possibly not reach the standard, and meanwhile, the core wire can be cut due to uneven sheath when a customer cuts an outer sheath.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the utility model provides an extrusion die for a wire and cable sheath, which comprises an outer die and an inner die structure, wherein an extrusion opening and a fluid cavity are arranged on the outer die, the extrusion opening is communicated with the fluid cavity, the inner die structure is arranged in the fluid cavity and is coaxially arranged with the outer die, a core wire channel is arranged on the inner die structure, a plurality of drainage channels and a containing cavity are further arranged on the inner die structure, the drainage channels are communicated with the fluid cavity and the containing cavity, the core wire channel comprises a first core wire channel and a second core wire channel, the first core wire channel is arranged on one side, close to the extrusion opening, of the inner die structure and is communicated with the containing cavity, the second core wire channel is arranged on one side, far away from the extrusion opening, of the inner die structure and extends towards the direction of the first core wire channel, and the second core wire channel is communicated with the containing cavity.
In an embodiment, the internal mold structure comprises a first internal mold structure and a second internal mold structure, the first internal mold structure is provided with the first core wire channel, the drainage channel and the accommodating cavity, the second internal mold structure is provided with the second core wire channel, the second internal mold structure is arranged in the accommodating cavity and connected with the first internal mold structure, and the first core wire channel and the second core wire channel are coaxially arranged.
In one embodiment, the drainage channel is disposed on a side of the first inner mold structure remote from the first core wire channel.
In an embodiment, the drainage channels are uniformly distributed on the first internal mold structure and are symmetrically distributed in the center of a circle.
In an embodiment, a groove is formed in one side, far away from the first core wire channel, of the first inner mold structure, the groove is communicated with the accommodating cavity, a mounting block is arranged on the second inner mold structure, and the second inner mold structure is connected with the first inner mold structure by placing the mounting block in the groove.
In an embodiment, a clamping groove is formed in one side, away from the first internal mold structure, of the second internal mold structure.
Compared with the prior art, the technical scheme provided by the utility model has at least the following beneficial effects: the utility model improves the inner mould structure of the wire and cable sheath extrusion mould, the inner mould structure is provided with the drainage channel, the drainage channel is communicated with the fluid cavity of the outer mould and the accommodating cavity of the inner mould structure, the core wire is arranged to pass through the accommodating cavity of the inner mould structure and the fluid cavity of the outer mould in sequence and then passes through the extrusion outlet of the outer mould, during the process that the insulating rubber material passes through the wire and cable sheath extrusion mould to form the sheath, a part of the insulating rubber material enters the inner mould structure through the drainage channel and coats the core wire for the first time, the uneven structure on the core wire is filled, and the other part of the insulating rubber material flows along the fluid cavity of the outer mould to coat the core wire for the second time, so that the appearance of the wire is leveled, the appearance requirement of the wire is met, and the condition that uneven corrugation appears on the surface of the wire is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an extrusion die for a wire and cable jacket according to an embodiment;
FIG. 2 is a schematic cross-sectional view of the first inner mold structure of FIG. 1;
FIG. 3 is a top view of the first inner mold structure of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the second inner mold structure of FIG. 1;
wherein, the reference numerals are as follows: 10-wire and cable sheath extrusion die, 100-outer die, 110-extrusion port, 120-fluid cavity, 200-inner die structure, 210-first inner die structure, 211-first core wire channel, 212-drainage channel, 213-accommodation cavity, 214-groove, 220-second inner die structure, 221-second core wire channel, 222-mounting block, 223-detent groove, 300-fluid path.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
When the current wire and cable sheath production process is carried out, because the core wire structure is not round and the surface is uneven, in the process of extruding and wrapping the insulating rubber material on the surface of the core wire to form the sheath, the sheath can form uneven waves along the concave lines of the core wire.
In one embodiment, as shown in fig. 1-4, the wire and cable sheath extrusion die 10 comprises an outer die 100 and an inner die structure 200, wherein the outer die 100 is provided with an extrusion port 110 and a fluid cavity 120, the extrusion port 110 is communicated with the fluid cavity 120, the inner die structure 200 is arranged in the fluid cavity 120 and is coaxial with the outer die 100, the inner die structure 200 is provided with a core wire channel, the inner die structure 200 is also provided with a plurality of drainage channels 212 and containing cavities 213, the drainage channels 212 are communicated with the fluid cavity 120 and the containing cavities 213, the core wire channel comprises a first core wire channel 211 and a second core wire channel 221, the first core wire channel 211 is arranged on one side of the inner die structure 200 close to the extrusion port 110 and is communicated with the containing cavities 213, the second core wire channel 221 is arranged on one side of the inner die structure 200 far away from the extrusion port 110 and extends towards the direction of the first core wire channel 211, the second core wire channel 221 is communicated with the containing cavities 213, in this way, in the production process of the wire and cable sheath, the core wire can enter the wire and cable sheath extrusion die 10 from the second core wire channel 221, sequentially passes through the accommodating cavity 213, the first core wire channel 211 and the fluid cavity 120 and then passes through the extrusion outlet 110, and in the process that the insulating rubber material forms the sheath through the wire and cable sheath extrusion die 10, as shown in fig. 1, a part of the insulating rubber material enters the accommodating cavity 213 of the inner mold structure 200 through the drainage channel 212, the insulating rubber material coats the core wire for the first time in the accommodating cavity 213, the uneven structure on the core wire is filled, the other part of the insulating rubber material flows along the fluid cavity 120 of the outer mold 100 to the extrusion outlet 110 to coat the core wire for the second time, so that the appearance of the wire is leveled, and uneven waves on the surface of the wire material are avoided.
Specifically, the inner mold structure 200 includes a first inner mold structure 210 and a second inner mold structure 220, the first inner mold structure 210 is disposed near the extrusion port 110, a first core wire passage 211, a drainage passage 212 and a receiving cavity 213 are disposed on the first inner mold structure 210, more specifically, the first core wire passage 211 is disposed on a side of the first inner mold structure 210 near the extrusion port 110, and the first core wire passage 211 is disposed coaxially with the extrusion port 110; the drainage channels 212 are disposed on one side of the first inner mold structure 210 far away from the first core wire channel 211 and are uniformly and circularly symmetric on the first inner mold structure 210, and the drainage channels 212 are uniformly and circularly symmetric to facilitate uniform core wire cladding, where it is to be noted that the number of the drainage channels 212 is not limited, the number of the drainage channels 212 is set to be enough to satisfy that the core wires can fill up uneven structures of the core wires in the first cladding process, and from the viewpoints of efficiency and cladding uniformity, preferably, the number of the drainage channels 212 is not less than four.
The second inner mold structure 220 is disposed in the accommodating cavity 213 and connected with the first inner mold structure 210, specifically, a groove 214 is disposed on a side of the first inner mold structure 210 far away from the first core wire channel 211, the groove 214 is communicated with the accommodating cavity 213, a mounting block 222 is disposed on the second inner mold structure 220, and the second inner mold structure 220 is connected with the first inner mold structure 210 by disposing the mounting block 222 in the groove 214; the second internal mold structure 220 is provided with a second core wire channel 221, the second core wire channel 221 and the first core wire channel 211 are coaxially arranged, the second core wire channel 221 is communicated with the accommodating cavity 213, that is, a gap exists between the second core wire channel 221 and the first core wire channel 211, and the gap is used for realizing contact of an insulating rubber material and the core wire and first cladding of the core wire.
It can be appreciated that the inner mold structure 200 needs to be installed on an extruder to perform a production operation, and since the second inner mold structure 220 is disposed on a side far from the extruder outlet 110, a clamping groove 223 is disposed on a side far from the first inner mold structure 210 of the second inner mold structure 220 to install the inner mold structure 200 on the extruder.
The above embodiments represent only a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The utility model provides an electric wire and cable sheath extrusion die, electric wire and cable sheath extrusion die includes external mold and centre form structure, be equipped with on the external mold and give out an impression export and fluid chamber, give out an impression the export intercommunication the fluid chamber, centre form structure is arranged in the fluid intracavity and with the coaxial setting of external mold, the centre form is structural to be equipped with heart yearn passageway, its characterized in that, the centre form is structural still to be equipped with a plurality of drainage channels and holds the chamber, drainage channel intercommunication fluid chamber with hold the chamber, heart yearn passageway includes first heart yearn passageway and second heart yearn passageway, first heart yearn passageway sets up the centre form is structural to be close to give an impression one side of export and to first heart yearn passageway direction extends, second heart yearn passageway intercommunication hold the chamber.
2. The wire and cable jacket extrusion die of claim 1, wherein the inner die structure comprises a first inner die structure and a second inner die structure, the first inner die structure is provided with the first core wire channel, the drainage channel and the accommodating cavity, the second inner die structure is provided with the second core wire channel, and the second inner die structure is arranged in the accommodating cavity and connected with the first inner die structure, and the first core wire channel and the second core wire channel are coaxially arranged.
3. The wire and cable jacket extrusion die of claim 2, wherein the drainage channel is disposed on a side of the first inner mold structure remote from the first core channel.
4. A wire and cable jacket extrusion die according to any of claims 2-3, wherein a plurality of said drainage channels are uniformly and circularly symmetric on said first inner die structure.
5. The wire and cable jacket extrusion die of claim 2, wherein a groove is provided in a side of the first inner die structure remote from the first core wire channel, the groove communicates with the accommodating cavity, a mounting block is provided in the second inner die structure, and the second inner die structure is connected to the first inner die structure by placing the mounting block in the groove.
6. The wire and cable jacket extrusion die of claim 5, wherein a detent is provided on a side of the second inner mold structure remote from the first inner mold structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320040126.6U CN219505394U (en) | 2023-01-04 | 2023-01-04 | Wire and cable sheath extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320040126.6U CN219505394U (en) | 2023-01-04 | 2023-01-04 | Wire and cable sheath extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219505394U true CN219505394U (en) | 2023-08-11 |
Family
ID=87527698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320040126.6U Active CN219505394U (en) | 2023-01-04 | 2023-01-04 | Wire and cable sheath extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219505394U (en) |
-
2023
- 2023-01-04 CN CN202320040126.6U patent/CN219505394U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: No.6, Qingli Second Road, Shuikou Street, Huicheng District, Huizhou, Guangdong Province, 516000 Patentee after: LTK Electric Wire (Huizhou) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516006 Desai third industrial zone, Zhongkai Avenue, Chenjiang, Huizhou, Guangdong Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |