CN218462914U - Middle and low voltage cable extrusion molding mould - Google Patents
Middle and low voltage cable extrusion molding mould Download PDFInfo
- Publication number
- CN218462914U CN218462914U CN202222889285.1U CN202222889285U CN218462914U CN 218462914 U CN218462914 U CN 218462914U CN 202222889285 U CN202222889285 U CN 202222889285U CN 218462914 U CN218462914 U CN 218462914U
- Authority
- CN
- China
- Prior art keywords
- mold core
- mold
- extrusion molding
- core
- low voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of cable extrusion molding mould, concretely relates to well low voltage cable extrusion molding mould. The utility model discloses a: die sleeve; the sectional type mold core comprises a first mold core and a second mold core, one end of the first mold core is used for being connected with an extruding machine, the other end of the first mold core is movably connected with one end of the second mold core, the other end of the second mold core extends into the mold sleeve, a cavity between the second mold core and the mold sleeve is used for extruding plastics, and an inner hole of the second mold core is used for bearing a wire core of a medium-low voltage cable; an inner hole outlet of the second mold core is an extrusion type outlet, a semi-extrusion tube type outlet or an extrusion tube type outlet. The utility model is used for solving the problem that the extrusion molding die in the prior art is of an integral structure, and the corresponding extrusion molding die is required to be equipped for cables with different specifications, so that the die cost is higher; secondly, when debugging the extrusion molding production of the same type of cable, the replacement speed of the whole mold core is slow, and the production efficiency is reduced.
Description
Technical Field
The utility model belongs to the technical field of cable extrusion molding mould, concretely relates to well low voltage cable extrusion molding mould.
Background
In the middle and low voltage cable production process, because the difference of the raw and other materials coefficient of tension, the extrusion molding technology of different grade type cable sheath, for satisfying the extruded performance of plastics, under the prerequisite of guaranteeing the extruded thickness of product, the extrusion molding mould includes die sleeve and mold core among the prior art, wherein the mold core is overall structure, and when low voltage cable in the production, has following problem:
1. when different types of sheath materials are extruded, the dies with the same size need to be made into various styles (extrusion type, extrusion type or semi-extrusion type), and then are replaced according to the extrusion effect, the production process is complex and tedious, and each die with the same specification needs to be made into one set, so that the production cost is improved;
2. when cables with the same wire diameter and the same type of sheath materials are extruded, dies with different wire bearing lengths need to be selected according to the extrusion effect so as to achieve the best extrusion effect, but the existing dies cannot be quickly replaced, so that the production flexibility is reduced;
therefore, it is necessary to develop a mold which can be quickly replaced and can save the cost according to the production conditions of different types of medium and low voltage cables.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a middle and low voltage cable extrusion molding die, which is used for solving the problem that the extrusion molding die in the prior art is of an integral structure and needs to be provided with corresponding extrusion molding dies for cables with different specifications, so that the die cost is high; secondly, when debugging the extrusion molding production of the same type of cable, the replacement speed of the whole mold core is slow, and the production efficiency is reduced.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a medium and low voltage cable extrusion die comprising:
die sleeve;
the sectional type mold core comprises a first mold core and a second mold core, one end of the first mold core is used for being connected with an extruding machine, the other end of the first mold core is movably connected with one end of the second mold core, the other end of the second mold core extends into the mold sleeve, a cavity between the second mold core and the mold sleeve is used for extruding plastics, and an inner hole of the second mold core is used for bearing a wire core of the medium-low voltage cable;
and an inner hole outlet of the second mold core is an extrusion outlet, a semi-extrusion pipe type outlet or an extrusion pipe type outlet.
In the extrusion molding die in the prior art, the parts of the structures of different types of die cores connected with extrusion molding equipment are the same, only the die cores extending into a die sleeve part are different, and the die cores and the extrusion molding equipment are complicated to disassemble and assemble; therefore the utility model discloses with whole mold core design segmentation mold core, the segmentation mold core has two sections at least, including first mold core and second mold core, this part structure that extrusion molding equipment is connected with whole mold core to first mold core is the same, and the second mold core is the same with the partial structure that whole mold core stretches into the die sleeve, only need change the cable extrusion molding requirement that the second mold core just can adapt to the different grade type like this, and can save the mould cost and improve retooling efficiency.
Further: the first mold core and the second mold core are connected in a screwing manner through threads;
the beneficial effects of the step are as follows: the first mold core and the second mold core are connected in a screwing mode through threads, and the connection can be realized only by pulling and screwing from the side face of the second mold core, so that the connection cannot touch the inner hole outlet of the second mold core, and the inner hole outlet of the second mold core can be prevented from being collided and deformed.
Further, the method comprises the following steps: the outer surface of the second mold core is also provided with symmetrical wrenching surfaces;
the beneficial effects of the step are as follows: the wrenching surface can be buckled by a wrench, and the second mold core and the first mold core can be screwed tightly.
Further: enamel layers are arranged on the surfaces of the first mold core and the second mold core;
the beneficial effects of the step are as follows: the enamel layer has smooth surface and high temperature resistance, and is beneficial to the smooth flowing of the molten plastic in the cavity.
Further: the cross section of the inner hole outlet of the second mold core is round or oblate;
the beneficial effects of the step are as follows: different second mold cores can be selected according to different types of cable diameter shapes.
Further: the external tapers of the first mold core and the second mold core are consistent;
the beneficial effects of the step are as follows: the first mold core and the second mold core have the same external taper, so that the molten plastic can smoothly flow at the joint.
The utility model has the advantages that:
no matter the cables of different types are produced or the mould is debugged according to the extrusion condition in the production process, only the second mould core needs to be replaced, the replacement of the mould can be quickly realized, the mould replacement efficiency is improved, and the mould cost can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a cross-sectional structural view of a first embodiment of a middle and low voltage cable extrusion mold provided by the present invention;
FIG. 2 is a cross-sectional structure view of a middle/low voltage cable extrusion mold according to an embodiment of the present invention when a segmented mold core is combined;
FIG. 3 is a cross-sectional structural view of a middle/low voltage cable extrusion mold according to an embodiment of the present invention, when the segmented mold core is separated;
fig. 4 is a sectional structure view of a second mold core in the second embodiment of the middle and low voltage cable extrusion mold provided by the present invention.
Reference numerals:
1-a first mold core; 2-a second mold core; 3-a die sleeve; 4-a cavity; 5-cable core;
21-a conduit pipe.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Examples
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a middle and low voltage cable extrusion molding mould, include:
a die sleeve 3;
the sectional type mold core comprises a first mold core 1 and a second mold core 2, one end of the first mold core 1 is used for being connected with an extruding machine, the other end of the first mold core 1 is movably connected with one end of the second mold core 2, the other end of the second mold core 2 extends into the mold sleeve 3, a cavity 4 between the second mold core 2 and the mold sleeve 3 is used for extruding plastics, and an inner hole of the second mold core 2 is used for bearing a wire core 5 of the medium-low voltage cable;
the inner hole outlet of the second mold core 2 is an extrusion outlet, a semi-extrusion outlet or an extrusion outlet, wherein the inner hole outlet is provided with a line bearing pipe 21, and the distinguishing mode of the semi-extrusion outlet and the extrusion outlet is determined by the length of the line bearing pipe 21 and the length of the line bearing pipe 21 extending into the mold sleeve.
In the extrusion molding die in the prior art, the parts of the structures of different types of die cores connected with extrusion molding equipment are the same, only the die cores extending into a die sleeve part are different, and the die cores and the extrusion molding equipment are complicated to disassemble and assemble; therefore the utility model discloses with whole mold core design segmentation mold core, the segmentation mold core has two sections at least, including first mold core 1 and second mold core 2, this part structure that extrusion molding equipment is connected with whole mold core to first mold core 1 is the same, and second mold core 2 is the same with the partial structure that whole mold core stretched into the die sleeve, only need change like this second mold core 2 just can adapt to the cable extrusion molding requirement of different grade type, and can save the mould cost and improve retooling efficiency.
As shown in fig. 2 and 3, the first mold core 1 and the second mold core 2 are connected by screwing; the first mold core 1 and the second mold core 2 are connected in a screwing mode through threads, and can be achieved only by pulling and screwing from the side face of the second mold core 2, the inner hole outlet of the second mold core 2 cannot be touched, and the inner hole outlet of the second mold core 2 can be prevented from being collided and deformed.
Wherein, the outer surface of the second mold core 2 is also provided with symmetrical wrenching surfaces (not shown in the figure); the wrenching surface can be buckled by a wrench, and the second mold core 2 and the first mold core 1 can be screwed tightly.
Wherein, the surfaces of the first mold core 1 and the second mold core 2 are provided with enamel layers; the enamel layer has smooth surface and high temperature resistance, and is beneficial to the smooth flowing of the molten plastic in the cavity 4.
The cross section of the inner hole outlet of the second mold core 2 is round or oblate; different second mould cores 2 can be selected according to different cable diameter shapes.
The external tapers of the first mold core 1 and the second mold core 2 are consistent; the external taper of the first mold core 1 and the external taper of the second mold core 2 are consistent, so that the molten plastic can smoothly flow at the joint.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (6)
1. A middle and low voltage cable extrusion mold, comprising:
die sleeve;
the sectional type mold core comprises a first mold core and a second mold core, one end of the first mold core is used for being connected with an extruding machine, the other end of the first mold core is movably connected with one end of the second mold core, the other end of the second mold core extends into the mold sleeve, a cavity between the second mold core and the mold sleeve is used for extruding plastics, and an inner hole of the second mold core is used for bearing a wire core of the medium-low voltage cable;
and an inner hole outlet of the second mold core is an extrusion outlet, a semi-extrusion pipe type outlet or an extrusion pipe type outlet.
2. The extrusion molding die for medium and low voltage cables as claimed in claim 1, wherein the first die core and the second die core are connected by screwing.
3. The extrusion molding die for the medium and low voltage cables as claimed in claim 2, wherein the outer surface of the second mold core is further provided with symmetrical wrenching surfaces.
4. The extrusion molding die for the medium and low voltage cable as claimed in claim 1, wherein the surfaces of the first die core and the second die core are provided with enamel layers.
5. The extrusion molding die for the medium and low voltage cable as claimed in claim 1, wherein the cross-sectional shape of the inner hole outlet of the second mold core is a circular or oblate shape.
6. The extrusion molding die for the medium and low voltage cable as claimed in claim 1, wherein the first mold core and the second mold core have the same external taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889285.1U CN218462914U (en) | 2022-10-31 | 2022-10-31 | Middle and low voltage cable extrusion molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889285.1U CN218462914U (en) | 2022-10-31 | 2022-10-31 | Middle and low voltage cable extrusion molding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218462914U true CN218462914U (en) | 2023-02-10 |
Family
ID=85149650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222889285.1U Active CN218462914U (en) | 2022-10-31 | 2022-10-31 | Middle and low voltage cable extrusion molding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218462914U (en) |
-
2022
- 2022-10-31 CN CN202222889285.1U patent/CN218462914U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104538107B (en) | Equipment and process for manufacturing power transmission conductor with carbon fiber core | |
| CN1023691C (en) | Method for forming tubing utilizing suction and pneumatic pressure at surface of cooling plug | |
| CN218462914U (en) | Middle and low voltage cable extrusion molding mould | |
| CN211566881U (en) | Pipe extrusion type combined die for cable extrusion layer | |
| CN104900346B (en) | Catenary-chain type cross-linked cable production die and production method | |
| CN204480763U (en) | With transmission pressure and the making apparatus thereof of carbon fiber core | |
| CN210759119U (en) | Gas-assisted extrusion wire and cable cladding machine head | |
| CN211165235U (en) | Exempt from to transfer extrusion formula mould | |
| CN204834194U (en) | Crosslinked cable manufacture line quick die change device | |
| CN205915653U (en) | Moulding utensil is crowded to thin wall sheath | |
| CN213082273U (en) | Mold core device for stabilizing core deviation of cable insulation layer | |
| CN104344128A (en) | Coiling reinforced composite pipe assembly | |
| CN204187188U (en) | One can coiling reinforced composite pipe assembly | |
| CN210940178U (en) | Side-by-side hollow mould for butterfly-shaped optical cable | |
| CN2596518Y (en) | Self centring electric wire and cable plastic extruding mold | |
| CN211683390U (en) | Liquid cooling cable extrusion die with cooling cavity | |
| CN215550785U (en) | Novel fan-shaped extruded tube type die | |
| CN218535557U (en) | Self-supporting cable mould | |
| CN218876220U (en) | Co-extrusion die for special-shaped pipe structural wall pipe | |
| CN205969881U (en) | Mould of control ADSS fiber cable jacket and cable core elasticity degree | |
| CN215550745U (en) | Sheath extrusion die for electric wires and cables | |
| CN212407841U (en) | Internal reinforced hollow winding pipe | |
| CN211441095U (en) | Adjustable die | |
| CN212551077U (en) | Large-scale aluminium extrusion double-layer pipe mould with split type upper mould | |
| CN212554975U (en) | Special die for preparing pipeline-penetrating coaxial cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |