CN217944238U - Automobile wire extrusion die - Google Patents
Automobile wire extrusion die Download PDFInfo
- Publication number
- CN217944238U CN217944238U CN202221671319.3U CN202221671319U CN217944238U CN 217944238 U CN217944238 U CN 217944238U CN 202221671319 U CN202221671319 U CN 202221671319U CN 217944238 U CN217944238 U CN 217944238U
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- Prior art keywords
- extrusion die
- extrusion
- mold core
- die sleeve
- district
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- 238000001125 extrusion Methods 0.000 title claims abstract description 55
- 238000004513 sizing Methods 0.000 claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 239000000463 material Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004719 irradiation crosslinked polyethylene Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an automotive wire extrusion tooling relates to automotive wire and extrudes technical field, the utility model discloses an extrusion die sleeve and the inside restraint mold core of locating extrusion die sleeve, extrusion die sleeve includes sizing district and bearing diameter district, bearing diameter district has the conical passageway of opening including inside formation one, the contained angle that the slope formed is beta, sizing district includes inside a sharp passageway that forms of mould, sharp passageway is unanimous with the opening sectional area, the restraint mold core is including the mold core mould that has the open-ended toper platform structure, circular cone platform open position is equipped with the extrusion passageway, the contained angle that the restraint mold core formed is alpha, alpha and beta's contained angle are 5-10, the utility model discloses have simple structure, make the great fluid of viscosity in this application leave the die sleeve more easily, make the sizing material more easily adhere to the surface for the surface smoothness of electric wire.
Description
Technical Field
The utility model relates to an automobile wire extrusion equipment technical field, more specifically relate to an automobile wire extrusion tooling.
Background
In order to obtain a tightly wrapped insulating surface and a good peeling force, most of the existing electric wire production sites use an extrusion type die for insulating extrusion, but the extrusion dies of insulating materials such as polyvinyl chloride, halogen-containing crosslinked polyethylene, low-smoke halogen-free crosslinked polyethylene and the like are not distinguished in the extrusion process, and the dies with the same structural parameters are uniformly used.
At present, the use of the die with the same structural parameters can cause the following two problems: 1. the low-smoke halogen-free irradiation crosslinked polyethylene material is generally high in viscosity and poor in flowability during extrusion, and when a conventional die is used for production, the conditions of glue breaking, surface hemp, no glossiness, serious surface blocky lines and the like are easy to occur. In very individual cases, the surface was good but cracked when subjected to the low temperature winding test; 2. the difference between the stretching ratio of the low-smoke halogen-free irradiation crosslinking polyethylene material and the common polyvinyl chloride material is larger, and the extruding quality of the surface of the electric wire is reduced due to the improper stretching ratio.
Therefore, according to the technical problem, the automobile wire extrusion die is designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the conventional mould production of use among the prior art, appear gluing easily, the problem of the serious wait condition of surface bulk line, perhaps not have glossiness, the utility model discloses an automobile wire extrusion tooling.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme: the automobile wire diameter limiting device comprises an extrusion die sleeve and a limiting die core arranged in the extrusion die sleeve, wherein the extrusion die sleeve comprises a sizing area and a diameter bearing area, the diameter bearing area comprises a conical channel with an opening formed inside, an included angle formed by a slope is beta, the sizing area comprises a linear channel formed inside a die, the linear channel is consistent with the sectional area of the opening, the limiting die core comprises a die core die with an open conical table structure, an extrusion channel is arranged at the opening position of the conical table of the die core die, the included angle formed by the limiting die core is alpha, the included angle of the alpha and the beta is 5-10 degrees, the sizing area and the diameter bearing area are of an integral structure, the extrusion die sleeve comprises a cylindrical outer die I, the front end of the cylindrical outer die is provided with an outer die II with a diameter smaller than that of the outer die I, the length of the linear channel is 0.8-1.5 times of the wire diameter, the length of the extrusion channel is 5-8mm, the length of the extrusion channel is 0.1-0.2 degrees larger than the wire diameter, the length of the diameter bearing area is = 0.8-1.5 times of the automobile wire diameter, the diameter D = 0.05-40 degrees, and the diameter D of the automobile wire is 15.05-35 mm, and the diameter bearing area is 15.05-35 mm.
Further, the minimum thickness of the extrusion die sleeve is 1mm.
The working principle is as follows: the method designs the die according to the difference of the diameters of the wires of the die, the die is divided into two parts, namely an extrusion die sleeve and a constraint die core, then the specific size of the die sleeve is confirmed according to the head of an extruder, but the length of a sizing area and a bearing area of the extrusion die sleeve is reduced inside the extrusion die sleeve, so that the length of the sizing area P is approximately equal to 0.8-1.5 of the diameter of a cable, the upper limit value of the small-diameter wire of the cable wire is taken, and the lower limit value of the large-diameter cable is taken, the structure of the method enables fluid with higher viscosity to more easily leave the die sleeve, rubber materials are more easily attached to the surface, the surface is smooth, meanwhile, the viscosity of the low-smoke zero-halogen cross-linked polyethylene material is higher, and the closer the fluid is to the upper plate and the lower plate are according to the fluid mechanics principle, the more difficult the flow, the easier the fluid flow near the center point of the two plate surfaces, therefore, the hole diameter of the die sleeve is increased, the hole diameter of the die sleeve is as large as possible, and better surface quality can be obtained, so the difference value theta =0.05-0.15mm is selected according to the wire diameter of the wire, and a good surface can be obtained.
The utility model has the advantages as follows:
1. the utility model discloses simple structure makes this kind of wire and cable make the great fluid of viscosity leave the die sleeve more easily through simple mould, makes the sizing material adhere to on the surface more easily for the surface is smooth.
2. The utility model discloses a setting up of mold core angle has been avoided owing to bring for the great longitudinal impact of conductor to make conductor doubling or conductor warp, cause even to extrude the back conductor and fly the silk and produce the spark, cause the condition of waste product.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference numerals: 1-extruding a die sleeve, 2-constraining a die core, 3-sizing area, 4-bearing area, 5-first outer die and 6-second outer die.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, an electric wire with an electric wire specification of 0.5 is extruded, specifically: one includes extrusion die sleeve 1 and locates extrusion die sleeve 1 inside restraint mold core 2, extrusion die sleeve 1 includes sizing region 3 and bearing diameter district 4, bearing diameter district 4 includes that inside forms one has the conical passageway of opening, the contained angle that the slope formed is beta =40, sizing district 3 includes the inside linear channel that forms of mould, linear channel is unanimous with the opening sectional area, restraint mold core 2 is including the mold core mould that has open-ended toper platform structure, circular cone platform opening position is equipped with the extrusion passageway, the contained angle that restraint mold core 2 formed is alpha =35, sizing region 3 and bearing diameter district 4 are structure as an organic whole, extrusion die sleeve 1 includes columniform external mold one 5, columniform external mold front end position is equipped with the external mold two 6 that the diameter is less than external mold one 5, linear channel's length is 0.8-1.5 times of electric wire diameter, straight line channel length 1.8mm promptly, the length of extrusion passageway is 7mm, the aperture of extrusion passageway is 1.08, bearing diameter district 4D =1.62, theta =0.05 mm, the minimum thickness of extrusion die sleeve.
Example 2
As shown in fig. 1, an electric wire with an electric wire specification of 1.00 is extruded, specifically: one includes extrusion die sleeve 1 and locates extrusion die sleeve 1 inside restraint mold core 2, extrusion die sleeve 1 includes sizing district 3 and bearing diameter district 4, bearing diameter district 4 forms one including inside and has the conical passageway of opening, the contained angle that the slope formed is beta =40, sizing district 3 includes the inside linear channel that forms of mould, linear channel is unanimous with the opening sectional area, restraint mold core 2 is including the mold core mould that has open-ended toper platform structure, mold core mould toper platform opening position is equipped with the extrusion passageway, the contained angle that restraint mold core 2 formed is alpha =35, sizing district 3 and bearing diameter district 4 structure as an organic whole, extrusion die sleeve 1 includes columniform external mold one 5, columniform external mold front end position is equipped with the external mold two 6 that the diameter is less than external mold one 5, linear channel's length is 0.8-1.5 times of electric wire diameter, straight line channel length 2.3mm promptly, the length of extruding the passageway is 7mm, the aperture of extruding the passageway is 1.55mm, bearing diameter district 4D = D, the opening =0.05 mm, the thickness is minimum.
The following data are recorded according to example 1 and example 2, in mm:
from the above tests, it can be seen that the surfaces of the wire and cable extruded in the present application are all good.
The protection scope of the present invention is not limited to the above examples, and those skilled in the art can easily understand the changes such as the equal-time increase of the data based on the present invention.
Claims (7)
1. The utility model provides an automotive wire extrusion tooling, its characterized in that, includes extrusion die sleeve (1) and locates inside restraint mold core (2) of extrusion die sleeve (1), extrusion die sleeve (1) is including sizing district (3) and holding footpath district (4), holding footpath district (4) is including inside one formation and has the conical passageway of opening, the contained angle that conical passageway formed is beta, sizing district (3) is including the inside linear channel that forms of mould, linear channel is unanimous with the opening sectional area, restraint mold core (2) is including the mold core mould that has open-ended toper platform structure, mold core mould circular cone platform opening position is equipped with the extrusion passageway, the contained angle that restraint mold core (2) formed is alpha, linear channel's length is wire diameter's 0.8-1.5 times.
2. The automotive wire extrusion die of claim 1, wherein: the sizing area (3) and the bearing area (4) are of an integral structure, the extrusion die sleeve (1) comprises a cylindrical outer die I (5), and an outer die II (6) with the diameter smaller than that of the outer die I (5) is arranged at the front end of the cylindrical outer die I.
3. The automotive wire extrusion die of claim 1, wherein: the included angle between alpha and beta is 5-10 degrees, alpha = 30-35 degrees, and beta = 35-40 degrees.
4. The automotive wire extrusion die of claim 1, wherein: the length of the extrusion channel is 5-8mm.
5. The automotive wire extrusion die of claim 1, wherein: the aperture of the extrusion channel is 0.1-0.2mm larger than the diameter of the wire.
6. The automotive wire extrusion die of claim 1, wherein: the opening aperture of the sizing area (3) is D, D = the diameter-theta of the automobile wire, and theta =0.05-0.15mm.
7. The automotive wire extrusion die of claim 1, wherein: the minimum thickness of the extrusion die sleeve (1) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221671319.3U CN217944238U (en) | 2022-06-30 | 2022-06-30 | Automobile wire extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221671319.3U CN217944238U (en) | 2022-06-30 | 2022-06-30 | Automobile wire extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217944238U true CN217944238U (en) | 2022-12-02 |
Family
ID=84219151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221671319.3U Active CN217944238U (en) | 2022-06-30 | 2022-06-30 | Automobile wire extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217944238U (en) |
-
2022
- 2022-06-30 CN CN202221671319.3U patent/CN217944238U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240522 Address after: 432000, No. 36 Xiaohan Avenue, Xiaogan City, Hubei Province Patentee after: Xiaogan Fushi Automotive Cable Co.,Ltd. Country or region after: China Address before: No. 2078, Xindu Puhe Road, Xindu District, Chengdu, Sichuan 610500 Patentee before: CHENGDU FORCE AUTOMOTIVE WIRE Co.,Ltd. Country or region before: China |