CN100426611C - An electric wire and cable plastic clad mold - Google Patents
An electric wire and cable plastic clad mold Download PDFInfo
- Publication number
- CN100426611C CN100426611C CNB2004100271870A CN200410027187A CN100426611C CN 100426611 C CN100426611 C CN 100426611C CN B2004100271870 A CNB2004100271870 A CN B2004100271870A CN 200410027187 A CN200410027187 A CN 200410027187A CN 100426611 C CN100426611 C CN 100426611C
- Authority
- CN
- China
- Prior art keywords
- cable
- head
- extruder head
- mould
- core rod
- 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.)
- Expired - Fee Related
Links
- 229920003023 plastic Polymers 0.000 title abstract description 5
- 239000004033 plastic Substances 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a longitudinal coating and extruding plastic mould of wires and cables, which is composed of an extruder head, a mould core and a mould shell, wherein the extruder head is in a hollow cylinder shape, and the side wall of the middle part is provided with a feed port; the mould core is sheathed in a through hole of the extruder head and can form definite gap with the inner wall of the extruder head; the mould core is provided with a passage for passing a cable; the mould shell is in a loudspeaker shape and is arranged on an extruding opening of the extruder head. The present invention is characterized in that one side of the entering direction approaching to the cable at the feed port is provided with a sealing ring which has an angle smaller than 90 DEG with the entering direction of the cable, and the gap between the inner wall of the extruder head and the mould core can be sealed. The insulating layer of wires and cables of the present invention can not generate air bubble hard blocks, and the quality and the productive efficiency of wires and cables can be largely enhanced.
Description
Technical field:
The present invention relates to a kind of mould of producing cable, relate to the vertical bag of a kind of electric wire extrusion molding specifically and touch tool.
Background technology
At present, the most employing of the insulating package layer of electric wire is extrusion molding, vertical technology of the package, cable extrusion molding particular manufacturing craft commonly used as shown in Figure 3, mainly form by injection molding machine head mould core and die sleeve, core rod is placed in the inner and inner gap that forms of head of head, die sleeve is loaded on head extrusion place, and the control cable covers the thickness of insulating barrier, and the quality of cable wrap insulate layer and efficient are subjected to all multifactor influences.Head shown in Fig. 3 exists following shortcoming, first; When plastics enter inside in the head, direction that it advances and core rod are at an angle of 90, reason is that injection molding machine has certain pressure, and the tendency of plastics enters head from flange port, because there is the resistance of core rod head inside, it has from the inside of head and gets ahead in this case, the outside by the core rod resistance, and raw material just reduces naturally, and promptly the side near charging aperture is many, away from the few phenomenon of a side of charging aperture, the thickness adjustment difficulty of cable insulation under the situation like this; The second, the inner space with core rod of head is too big, holds material and distinguishes corresponding long, normal working hours one is long, the material that arrives first can not arrive thoroughly at the head wall and walk out, and will produce lump, burn or phenomenon such as bubble occurs, and finally causes unstable product quality or waste product too much.The inventor improves above-mentioned mistake point through for many years practice.
Summary of the invention
The object of the present invention is to provide a kind of electric wire extruded mould, the wire cable insulating layer that this extruded mould is produced bubble or lump can not occur, improves the quality and and the production efficiency of electric wire greatly.
The object of the present invention is achieved like this: a kind of electric wire is moulded the bag mould; By extruder head, core rod, die sleeve is formed, extruder head middle part sidewall has a charging aperture, core rod is placed in the extruder head and is gapped with the head inwall, gap and feeding inlet, the passage that core rod has current supply cable to pass through, die sleeve is horn-like, be loaded on the head extrusion, it is characterized in that less than: by cable approach axis one side, have one to become sealing ring that the gap between head inwall and the core rod is sealed at charging aperture less than 90 ° with the cable approach axis, the angle of sealing ring inclined-plane and cable approach axis is 20 °-60 °, and the best is 35 ° of angles.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described in detail:
Fig. 1 is an electric wire extrusion die cutaway view of the present invention;
Fig. 2 is sealing ring structure chart in the mould of the present invention;
Fig. 3 moulds bag mould inside structure chart for the origin wire cable;
The number in the figure explanation; 1, head, 2, core rod, 3, die sleeve, 4, sealing ring, 5, cable, 6, charging aperture.
Embodiment
With reference to Fig. 1, Fig. 2, the present invention is by extruder head 1, core rod 2, die sleeve 3 is formed, extruder head is a hollow tube-shape, its middle part barrel has a charging aperture 6, charging aperture is generally circle, core rod is placed in the head through hole and with the head inwall certain clearance, the passage that core rod has current supply cable 5 to pass through, and the core rod outlet is for horn-like, die sleeve is also for horn-like and match with core rod, be loaded on the head extrusion, by cable approach axis one side, have one to become sealing ring 4 that the gap between head inwall and the core rod is sealed less than 90 ° with the cable approach axis at charging aperture.
The straight angle of sealing ring inclined-plane and cable approach axis is general 20 °-60 °, and being preferably best angle is 35 °.
Establish an effect that becomes with the cable approach axis less than the sealing ring of 90 ° of angles in charging aperture cable approach axis one side, be actually the space that reduces to hold the material district, the space of charging aperture electric wire approach axis one side head and core rod less than effect, can have influence on the quality of cable for the plastic flow of injection moulding on the contrary.This sealing ring upper end is preferably near charging aperture but can not block charging aperture, and makes the arc identical with the charging aperture radian, and thickness can not limit, and can be a circle, can be a wedge, as shown in Figure 2 yet.The angle reality that its inclined-plane and cable approach axis form is regulated according to factors such as the thickness of cable insulation, charging rates.Be generally general 20 °-60 °, being preferably best angle is 30 °-35 °, can both obtain good effect.
The head charging aperture is made funnel-form or be half of in sealing ring opposite one side is funnel-form.Raw material enters charging aperture from the injection molding machine head and makes into tubaeform, mainly be to increase the pressure that enters head, because of former expect to enter in the head promote entirely by sieve bar rotating speed, charging aperture funnel limit and core rod form 30 ° of angles, raw material enters head can come the conversion trend by the resistance of angle, raw material is directly walked from inner face quickly, under the formation of resistance, natural walks toward outside, and reduce relatively in space outside, make the raw material of outside go to the distance shortening of touching cover, adjust inside and outside trend by different angles, it can be walked out like this, can guarantee the accuracy of adjustment polarization degree again, stability, handled easily and control.
Claims (2)
1. an electric wire is moulded the bag mould; By extruder head, core rod, die sleeve is formed, extruder head middle part sidewall has a charging aperture, core rod is placed in the extruder head and is gapped with the head inwall, gap and feeding inlet, the passage that core rod has current supply cable to pass through, die sleeve is horn-like, be loaded on the head extrusion, it is characterized in that: by cable approach axis one side, have one to become the sealing ring less than 90 ° that the gap between head inwall and the core rod is sealed with the cable approach axis at charging aperture, the angle of sealing ring inclined-plane and cable approach axis is 20 °-60 °.
2. mould according to claim 1 is characterized in that: sealing ring inclined-plane and cable approach axis angle are 35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271870A CN100426611C (en) | 2004-05-14 | 2004-05-14 | An electric wire and cable plastic clad mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100271870A CN100426611C (en) | 2004-05-14 | 2004-05-14 | An electric wire and cable plastic clad mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1571228A CN1571228A (en) | 2005-01-26 |
| CN100426611C true CN100426611C (en) | 2008-10-15 |
Family
ID=34480914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100271870A Expired - Fee Related CN100426611C (en) | 2004-05-14 | 2004-05-14 | An electric wire and cable plastic clad mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100426611C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519516A (en) * | 2011-12-22 | 2012-06-27 | 神宇通信科技股份公司 | Reverse wrapping online detection apparatus of microcoaxial-cable longitudinal wrapping metal plastic composite foil |
| CN110289141B (en) * | 2019-06-28 | 2024-09-13 | 江苏中利集团股份有限公司 | Wrapping die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045353U (en) * | 1989-04-05 | 1989-10-04 | 卢富雄 | Plastic film extrusion die for automatic coating |
| CN2072265U (en) * | 1990-07-07 | 1991-02-27 | 江西省通信电缆厂 | Cable core insulation extruder handpiece |
| CN1033341C (en) * | 1991-05-11 | 1996-11-20 | 北方电信有限公司 | Optical cable manufacturing method and equipment |
| CN2454873Y (en) * | 2000-11-10 | 2001-10-17 | 广东南洋电缆厂有限公司 | Right-angled machine head of wire-cable extruder |
| CN2596518Y (en) * | 2002-05-30 | 2003-12-31 | 新疆特变电工股份有限公司 | Self centring electric wire and cable plastic extruding mold |
| CN2701039Y (en) * | 2004-05-14 | 2005-05-18 | 广东金华电缆厂 | An electric wire and cable plastic clad mold |
-
2004
- 2004-05-14 CN CNB2004100271870A patent/CN100426611C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045353U (en) * | 1989-04-05 | 1989-10-04 | 卢富雄 | Plastic film extrusion die for automatic coating |
| CN2072265U (en) * | 1990-07-07 | 1991-02-27 | 江西省通信电缆厂 | Cable core insulation extruder handpiece |
| CN1033341C (en) * | 1991-05-11 | 1996-11-20 | 北方电信有限公司 | Optical cable manufacturing method and equipment |
| CN2454873Y (en) * | 2000-11-10 | 2001-10-17 | 广东南洋电缆厂有限公司 | Right-angled machine head of wire-cable extruder |
| CN2596518Y (en) * | 2002-05-30 | 2003-12-31 | 新疆特变电工股份有限公司 | Self centring electric wire and cable plastic extruding mold |
| CN2701039Y (en) * | 2004-05-14 | 2005-05-18 | 广东金华电缆厂 | An electric wire and cable plastic clad mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1571228A (en) | 2005-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105345998A (en) | Die for injection molding of insulating framework | |
| CN202473417U (en) | Extrusion molding die for double-color wire | |
| CN100426611C (en) | An electric wire and cable plastic clad mold | |
| CN204658898U (en) | A kind of extrusion molding machine head mould | |
| CN2701039Y (en) | An electric wire and cable plastic clad mold | |
| CN209718559U (en) | A kind of double-colored cable extrusion die | |
| CN206528045U (en) | A two-color extrusion mold | |
| CN204340159U (en) | The double-colored insulating barrier of insulated cable squeezes the mould structure covered | |
| CN107696390B (en) | A method of manufacturing a clamping ring, equipment for manufacturing the clamping ring, and injection molding machine | |
| CN202584948U (en) | Parallel bunched cable extruding mold | |
| CN201340763Y (en) | Dual-color extrusion mould for electrical wires and cables | |
| CN103147664B (en) | Steel liner-free plastic profile and internal co-extrusion mould head thereof | |
| CN201820525U (en) | Plastic extrusion moulding die used for wire and cable production and capable of realizing double-layered coextrusion | |
| CN201342773Y (en) | Bellmouth-orifice molding insert | |
| CN205202085U (en) | A extrusion molding mould for cable | |
| CN203050381U (en) | Steel-lining-free plastic profile and inner co-extrusion die head thereof | |
| CN107297881A (en) | A kind of co-extruder head prepared for electric wire | |
| CN203031874U (en) | Glue inlet structure and injection mold with same | |
| CN206232587U (en) | Subsection electrical heating interconnection system plastic septic tank | |
| CN202180587U (en) | High-speed CPVC pipe extrusion die | |
| CN201320839Y (en) | Film blowing machine head | |
| CN218803737U (en) | Hot nozzle head assembly and hot nozzle structure | |
| CN220218941U (en) | Ceramic extrusion process die | |
| CN103817906A (en) | Self-centering die for producing BVVB-S (copper core polyvinyl chloride insulated and polyvinyl chloride sheathed flat cable) and RVB (polyvinyl chloride sheathed flat cable) products | |
| CN218214805U (en) | Special extrusion die for polyvinyl chloride wire sheath |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20120514 |