CN214448353U - Cable insulation sheath extrusion die - Google Patents
Cable insulation sheath extrusion die Download PDFInfo
- Publication number
- CN214448353U CN214448353U CN202022319445.XU CN202022319445U CN214448353U CN 214448353 U CN214448353 U CN 214448353U CN 202022319445 U CN202022319445 U CN 202022319445U CN 214448353 U CN214448353 U CN 214448353U
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- Prior art keywords
- film layer
- hole
- die
- tapered
- cable insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 25
- 238000001125 extrusion Methods 0.000 title claims description 27
- 239000003292 glue Substances 0.000 claims abstract description 56
- 239000004809 Teflon Substances 0.000 claims abstract description 48
- 229920006362 Teflon® Polymers 0.000 claims abstract description 48
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 34
- 229910052804 chromium Inorganic materials 0.000 claims description 31
- 239000011651 chromium Substances 0.000 claims description 31
- 230000000670 limiting effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 abstract description 15
- 239000004033 plastic Substances 0.000 abstract description 14
- 239000013049 sediment Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 86
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of cables, a mould is given as security out to cable insulation sheath is disclosed, including outer mould and interior mould. The outer mould comprises an outer mould body and an inner film layer, wherein the outer mould body is provided with a conical glue inlet hole and a circular glue outlet hole which are communicated, the inner film layer comprises an inner Teflon film layer, and the inner Teflon film layer is connected to the inner surface of the conical glue inlet hole and the circular glue outlet hole. The inner die comprises an inner die main body and an outer film layer, wherein the inner die main body is provided with a taper hole and a round hole which are communicated with each other, one end of the inner die main body is arranged to be a taper part corresponding to the taper glue inlet hole, the outer film layer comprises an outer Teflon film layer, and the outer Teflon film layer is connected to the outer surface of the taper part. The utility model discloses a go into gluey hole and circular the internal surface that goes out gluey hole and the surface of toper portion at the toper and plate the teflon rete, can reduce the friction of plastic material on the runner, and then reduce the phenomenon that the port easily produced the long-pending sediment of giving as security out of this mould, avoid cable wire rod surface scratch problem.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a mould is given as security out to cable insulation sheath.
Background
The cable consists of a conductor and an insulating sheath, wherein the insulating sheath is formed by pressing and extruding a plastic material through an extruding die. The extrusion die for the cable insulation sheath consists of an inner die and an outer die, and plastic materials flow in a flow passage formed between the inner die and the outer die.
The existing cable insulation sheath extrusion die is generally made of stainless steel materials, a formed flow channel has large friction, so that plastic materials cannot flow smoothly in the flow channel, slag is easily accumulated at an extrusion port of an outer die, the surface of a cable is easily scratched, and the defective product rate is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing a mould is given as security out to cable insulation sheath, can reduce the friction of plastic material on the runner, and then solve the problem that the port is given as security out of mould easily produces long-pending sediment.
The purpose of the utility model is realized through the following technical scheme:
a cable insulation sheath extrusion die, comprising:
the outer die comprises an outer die body and an inner film layer, the outer die body is provided with a conical glue inlet hole and a circular glue outlet hole which are communicated, the inner film layer comprises an inner Teflon film layer, and the inner Teflon film layer is connected to the inner surfaces of the conical glue inlet hole and the circular glue outlet hole; and
the inner die comprises an inner die main body and an outer film layer, wherein the inner die main body is provided with a taper hole and a round hole which are communicated with each other, one end of the inner die main body is arranged to be a taper part corresponding to the taper glue inlet hole, the outer film layer comprises an outer Teflon film layer, and the outer Teflon film layer is connected to the outer surface of the taper part.
In one embodiment, the inner and outer Teflon film layers are provided in three layers, and have thicknesses of 18 to 22 μm, 8 to 12 μm, and 8 to 12 μm, respectively.
In one embodiment, the inner film layer further comprises an inner chromium film layer, the inner chromium film layer is connected to the inner surfaces of the tapered glue inlet hole and the circular glue outlet hole, and the inner teflon film layer is connected to one side surface of the inner chromium film layer, which is far away from the tapered glue inlet hole and the circular glue outlet hole; the outer film layer further comprises an outer chromium film layer, the outer chromium film layer is connected to the outer surface of the conical portion, and the outer Teflon film layer is connected to one side face, far away from the conical portion, of the outer chromium film layer.
In one embodiment, the inner chromium film layer and the outer chromium film layer are both provided with two layers, and the thickness of each layer is 5-10 μm.
In one embodiment, the inner surface of the tapered glue inlet hole is a first tapered surface, the outer surface of the tapered portion is a second tapered surface, and the first tapered surface corresponds to the second tapered surface.
In one embodiment, the first tapered surface forms an included angle of 42 ° to 48 °, and the second tapered surface forms an included angle of 32 ° to 38 °.
In one embodiment, the top of the outer die body is provided with the tapered glue inlet hole, the bottom of the outer die body is provided with the circular glue outlet hole and the trapezoidal hole, and the circular glue outlet hole is communicated between the tapered glue inlet hole and the trapezoidal hole.
In one embodiment, the other end of the inner mold body is provided as a connecting portion.
In one embodiment, a protrusion limiting portion is disposed between the tapered portion and the connecting portion of the inner mold body.
In one embodiment, the inner mold body has a groove formed between the connecting portion and the protrusion limiting portion.
Compared with the prior art, the utility model discloses at least, following advantage has:
1. the utility model discloses a plating or coating interior teflon rete on the toper advances the internal surface in gluey hole and circular play gluey hole, plate or coat outer teflon rete on the surface of toper portion, can reduce the friction of plastic material when flowing on this runner, improve the flow speed of plastic material on this runner, and then reduce the phenomenon that the port easily produces the long-pending sediment of giving as security out of this mould, avoid cable wire surface scratch problem, can satisfy the production demand, reduce the defective index, improve production efficiency.
2. The utility model discloses a set up the toper and advance the angle in gluey hole and be 42 ~ 48, the angle of toper portion is 32 ~ 38, can reduce the pressure size when giving as security out, improves the pressure degree of consistency when giving as security out.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a cable insulation sheath extruding mold according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a cable insulation sheath extruding mold according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an inner film layer of an outer mold of a cable insulation sheath extruding mold according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention 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 "secured 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 as used herein are for illustrative purposes only and do not represent the only embodiments.
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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A cable insulation sheath extrusion die, comprising: the outer die comprises an outer die body and an inner film layer, the outer die body is provided with a conical glue inlet hole and a circular glue outlet hole which are communicated, the inner film layer comprises an inner Teflon film layer, and the inner Teflon film layer is connected to the inner surfaces of the conical glue inlet hole and the circular glue outlet hole; and the inner die comprises an inner die main body and an outer film layer, the inner die main body is provided with a taper hole and a round hole which are communicated, one end of the inner die main body is arranged to be a taper part corresponding to the taper glue inlet hole, the outer film layer comprises an outer Teflon film layer, and the outer Teflon film layer is connected to the outer surface of the taper part.
The above-described cable insulation sheath extrusion mold is described in order to better understand the concept of the above-described cable insulation sheath extrusion mold. In one embodiment, referring to fig. 1 and 2, a cable insulation sheath extrusion mold 10 includes an outer mold 110 and an inner mold 120. The outer mold 110 includes an outer mold body 111 and an inner film layer 112 (shown by a thick line in fig. 1 and fig. 2), the outer mold body 111 is provided with a tapered glue inlet 1111 and a circular glue outlet 1112 which are communicated, the inner film layer 112 includes an inner teflon film layer 1121, and the inner teflon film layer 1121 is connected to inner surfaces of the tapered glue inlet 1111 and the circular glue outlet 1112. The inner mold 120 includes an inner mold main body 121 and an outer film layer 122 (represented by a thick line in fig. 1 and 2), the inner mold main body 121 is provided with a tapered hole 1211 and a circular hole 1212, which are communicated with each other, one end of the inner mold main body 121 is provided with a tapered portion 1213 corresponding to the tapered glue inlet hole 1111, the outer film layer 122 includes an outer teflon film layer 1221, and the outer teflon film layer 1221 is connected to an outer surface of the tapered portion 1213.
It should be noted that, the utility model discloses a runner for supplying plastic material to flow mainly includes that the toper advances the internal surface of jiao hole 1111 and circular jiao hole 1112 and the surface of toper portion 1213, the teflon belongs to the plastic material, itself has good inadhesion, the heat resistance, the slidability, the moisture resistance, wearability, corrosion resistance etc., through plate or coat interior teflon rete 1121 on the internal surface of glue hole 1111 and circular jiao hole 1112 is advanced in the toper, plate or coat outer teflon rete 1221 on the surface of toper portion 1213, can reduce the friction of plastic material when flowing on this runner, improve the flow velocity of plastic material on this runner, and then reduce the easy phenomenon that produces the long-pending sediment of the extrusion port of this mould, avoid cable wire rod surface scratch problem, can satisfy the production demand, reduce the defective rate, improve production efficiency.
Further, referring to fig. 3, the inner teflon film layer 1121 and the outer teflon film layer 1221 are three layers, and the thicknesses thereof are respectively 18 μm to 22 μm, 8 μm to 12 μm, and 8 μm to 12 μm. For another example, the inner teflon film layer 1121 and the outer teflon film layer 1221 are three layers, and the thicknesses thereof are 20 μm, 10 μm, and 10 μm, respectively. It should be noted that the inner teflon film layer 1121 and the outer teflon film layer 1221 need a certain thickness to exert the effect well and maintain the long service life, but if only one time of electroplating or coating is performed, the single-layer film layer is easily uneven, and the single-layer film layer is too thick, the phenomenon of fracture and bulge is generated due to stress, and the like, so the three-layer inner teflon film layer 1121 and the three-layer outer teflon film layer 1221 are formed by three times of electroplating or coating, the three-time thickness is preferably 18 μm to 22 μm, 8 μm to 12 μm, and the inner teflon film layer 1121 and the outer teflon film layer 1221 can exert the effect well and maintain the long service life.
Further, the inner film layer 112 further includes an inner chrome film layer 1122, the inner chrome film layer 1122 is connected to the inner surface of the tapered glue inlet hole 1111 and the circular glue outlet hole 1112, and the inner teflon film layer 1121 is connected to a side surface of the inner chrome film layer 1122 away from the tapered glue inlet hole 1111 and the circular glue outlet hole 1112; the outer membrane layer 122 further comprises an outer chromium membrane layer connected to the outer surface of the tapered portion 1213, and the outer teflon membrane layer 1221 is connected to a side surface of the outer chromium membrane layer away from the tapered portion 1213. It should be noted that the outer mold body 111 and the inner mold body 121 are generally made of stainless steel, chromium has good permeability and corrosion resistance, and the inner chromium film layer 1122 and the outer chromium film layer 1122 respectively improve the bonding force between the inner teflon film layer 1121 and the outer teflon film layer 1221 and the outer mold body 111 and the inner mold body 121, and improve the oxidation resistance and the corrosion resistance of the outer mold 110 and the inner mold 120.
Further, the inner chromium film layer 1122 and the outer chromium film layer are both provided as two layers, and the thickness thereof is 5 to 10 μm. For another example, the inner chromium film layer 1122 and the outer chromium film layer are both provided as two layers, and the thickness thereof is 7.5 μm. It should be noted that both the inner chromium film layer 1122 and the outer chromium film layer need a certain thickness to exert the effect well, but if only one time of electroplating or coating is performed, the single-layer film layer is easily uneven, and the phenomenon of fracture and bulge due to stress is generated when the thickness of the single-layer film layer is too large, so that the inner chromium film layer 1122 and the outer chromium film layer which are two layers are formed by electroplating or coating twice, and the thicknesses of both the two layers are preferably 5 μm to 10 μm, so that the inner chromium film layer 1122 and the outer chromium film layer can exert the effect well.
Further, referring to fig. 2, the inner surface of the tapered glue inlet 1111 is a first tapered surface, the outer surface of the tapered portion 1213 is a second tapered surface, and the first tapered surface corresponds to the second tapered surface. The included angle a formed by the first conical surface is 42-48 degrees, and the included angle b formed by the second conical surface is 32-38 degrees. For another example, the included angle a formed by the first tapered surface is 45 °, and the included angle b formed by the second tapered surface is 35 °. It should be noted that the size of the angle of the tapered glue inlet hole 1111 and the size of the angle of the tapered portion 1213, and the ratio of the angle of the tapered glue inlet hole 1111 to the angle of the tapered portion 1213 affect the pressure and uniformity at the time of extrusion, and by setting the angle a of the tapered glue inlet hole 1111 to 42 ° to 48 ° and the angle b of the tapered portion 1213 to 32 ° to 38 °, the pressure at the time of extrusion can be reduced, and the pressure uniformity at the time of extrusion can be improved.
Further, the top of the outer die body 111 is provided with the tapered glue inlet 1111, the bottom of the outer die body 111 is provided with the circular glue outlet 1112 and the trapezoidal hole 1113, and the circular glue outlet 1112 is communicated between the tapered glue inlet 1111 and the trapezoidal hole 1113. Therefore, the trapezoidal hole 1113 is arranged at the tail end of the circular rubber outlet hole 1112, and the short side surface of the trapezoidal hole 1113 is connected with the hole wall of the circular rubber outlet hole 1112, so that the contact between a plastic material and an extrusion port during extrusion can be reduced, the discharging is smoother, the phenomenon that the extrusion port of the die is easy to generate slag is reduced, and the problem of surface scratch of a cable wire is avoided.
Further, the other end of the inner mold body 121 is provided as a connecting portion 1214. The connecting portion 1214 is convenient for holding, and a snap structure or a thread structure may be disposed on the connecting portion 1214, so that the connecting portion 1214 can be connected with a driving member such as a motor. Further, a protrusion limiting portion is disposed between the tapered portion 1213 and the connecting portion 1214 of the inner die body 121. Therefore, the inner mold 120 can be limited in the moving range in the outer mold 110 by the protruding limiting part, and the positioning and limiting effects are achieved. Further, the inner mold body 121 is provided with a groove 1215 between the connecting portion 1214 and the bump limiting portion.
Compared with the prior art, the utility model discloses at least, following advantage has:
1. the utility model discloses a plating or coating interior teflon rete 1121 on the toper advances the internal surface of gluey hole 1111 and circular play gluey hole 1112, plate or coating outer teflon rete 1221 on the surface of toper portion 1213, can reduce the friction of plastic material when flowing on this runner, improve the flow rate of plastic material on this runner, and then reduce the phenomenon that the port easily produced long-pending sediment of giving as security out of this mould, avoid cable wire rod surface scratch problem, can satisfy the production demand, reduce the defective index, the production efficiency is improved.
2. The utility model discloses a setting up the toper and advancing the angle of gluey hole 1111 and be 42 ~ 48, the angle of toper portion 1213 is 32 ~ 38, can reduce the pressure size when giving as security out, improves the pressure degree of consistency when giving as security out.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a cable insulation sheath extrusion mould which characterized in that includes:
the outer die comprises an outer die body and an inner film layer, the outer die body is provided with a conical glue inlet hole and a circular glue outlet hole which are communicated, the inner film layer comprises an inner Teflon film layer, and the inner Teflon film layer is connected to the inner surfaces of the conical glue inlet hole and the circular glue outlet hole; and
the inner die comprises an inner die main body and an outer film layer, wherein the inner die main body is provided with a taper hole and a round hole which are communicated with each other, one end of the inner die main body is arranged to be a taper part corresponding to the taper glue inlet hole, the outer film layer comprises an outer Teflon film layer, and the outer Teflon film layer is connected to the outer surface of the taper part.
2. The cable insulation sheath extrusion die of claim 1, wherein the inner and outer teflon film layers are provided in three layers, and have thicknesses of 18 to 22 μm, 8 to 12 μm, and 8 to 12 μm, respectively.
3. The cable insulation sheath extrusion die of claim 1, wherein the inner film layer further comprises an inner chromium film layer, the inner chromium film layer is connected to the inner surfaces of the tapered glue inlet hole and the circular glue outlet hole, and the inner Teflon film layer is connected to one side surface of the inner chromium film layer away from the tapered glue inlet hole and the circular glue outlet hole; the outer film layer further comprises an outer chromium film layer, the outer chromium film layer is connected to the outer surface of the conical portion, and the outer Teflon film layer is connected to one side face, far away from the conical portion, of the outer chromium film layer.
4. The extrusion die for the cable insulation sheath according to claim 3, wherein the inner chromium film layer and the outer chromium film layer are provided in two layers, and the thickness of each layer is 5 μm to 10 μm.
5. The cable insulation sheath extrusion die of claim 1, wherein the inner surface of the tapered glue inlet hole is provided with a first tapered surface, the outer surface of the tapered portion is provided with a second tapered surface, and the first tapered surface corresponds to the second tapered surface.
6. The cable insulation sheath extrusion die of claim 5, wherein the first tapered surface forms an included angle of 42-48 degrees, and the second tapered surface forms an included angle of 32-38 degrees.
7. The cable insulation sheath extrusion die of claim 1, wherein the tapered glue inlet hole is formed in the top of the outer die body, the circular glue outlet hole and the trapezoidal hole are formed in the bottom of the outer die body, and the circular glue outlet hole is communicated between the tapered glue inlet hole and the trapezoidal hole.
8. The cable insulation sheath extrusion die of claim 1, wherein the other end of the inner die main body is provided as a connecting portion.
9. The extrusion die for the cable insulation sheath according to claim 8, wherein a protrusion limiting portion is disposed between the tapered portion and the connecting portion of the inner die body.
10. The extrusion die for the cable insulation sheath according to claim 9, wherein a groove is formed in the inner die body between the connecting portion and the protrusion limiting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022319445.XU CN214448353U (en) | 2020-10-16 | 2020-10-16 | Cable insulation sheath extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022319445.XU CN214448353U (en) | 2020-10-16 | 2020-10-16 | Cable insulation sheath extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214448353U true CN214448353U (en) | 2021-10-22 |
Family
ID=78147461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022319445.XU Active CN214448353U (en) | 2020-10-16 | 2020-10-16 | Cable insulation sheath extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214448353U (en) |
-
2020
- 2020-10-16 CN CN202022319445.XU patent/CN214448353U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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: 516029 Desai No.3 Industrial Park, Zhongkai Avenue, Huizhou City, Guangdong Province Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |
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| CP03 | Change of name, title or address |