CN1571228A - An electric wire and cable plastic clad mold - Google Patents
An electric wire and cable plastic clad mold Download PDFInfo
- Publication number
- CN1571228A CN1571228A CN 200410027187 CN200410027187A CN1571228A CN 1571228 A CN1571228 A CN 1571228A CN 200410027187 CN200410027187 CN 200410027187 CN 200410027187 A CN200410027187 A CN 200410027187A CN 1571228 A CN1571228 A CN 1571228A
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- Prior art keywords
- cable
- head
- extruder head
- mould
- charging aperture
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a wire cable plastic-coating mould, composed of extruder head, mould core, and mould sleeve, where the extruder head is hollow and cylindrical, there is a feed inlet on side wall in the middle of the extruder head, the mould core is inserted in the through hole of the extruder head and forms a certain gap together with the inner wall, there is a cable channel in the mould core, the mould sleeve is horn-like and installed at extrusion outlet of the extruder head, and its characteristic: on one side of the feed inlet near cable entering direction, there is a sealed ring making an angle less than 90 deg.C with the cable entering direction, the sealed ring seals the gap between the inner wall of the extruder head and the mould core. The insulating layers of wire and cable can not produce bubbles and nuggets, largely improving the quality and production efficiency of wires and cables.
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 is touched the core resistance and, raw material nature as right just minimizing, 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.
The content of 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, touch core, die sleeve is formed, and extruder head middle part sidewall has a charging aperture, and 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 are horn-like, are loaded on the head extrusion, it is characterized in that less than: by cable approach axis one side, have one to become with the cable approach axis less than 90 ° sealing ring the head inwall and the gap of touching between the core are sealed at charging aperture.
Technical scheme of the present invention comprises that the angle of sealing ring inclined-plane and cable approach axis is 20 °-60 °, and the best is 35 ° of angles.
Technical scheme of the present invention comprises that also the head charging aperture is funnel-form or is funnel-form in that sealing ring opposite one side is half of.
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, touch core 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 with the cable approach axis less than 90 ° sealing ring 4 the head inwall and the gap of touching between the core are sealed 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, its both walking out can guarantee the accuracy of adjustment polarization degree again like this, stability, handled easily and control.
Claims (4)
1. an electric wire is moulded the bag mould; By extruder head, touch core, die sleeve is formed, and extruder head middle part sidewall has a charging aperture, and 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 are horn-like, are loaded on the head extrusion, it is characterized in that less than: by cable approach axis one side, have one to become with the cable approach axis less than 90 ° sealing ring the head inwall and the gap of touching between the core are sealed at charging aperture.
2. mould according to claim 1 is characterized in that: the angle of sealing ring inclined-plane and cable approach axis is 20 °-60 °.
3. mould according to claim 2 is characterized in that: sealing ring inclined-plane and cable approach axis angle are 35 °.
4. mould according to claim 1 is characterized in that: the head charging aperture is funnel-form or is funnel-form in that sealing ring opposite one side is half of.
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 true CN1571228A (en) | 2005-01-26 |
| CN100426611C 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) |
Cited By (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 |
| CN110289141A (en) * | 2019-06-28 | 2019-09-27 | 江苏中利集团股份有限公司 | A kind of wrapped mold |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045353U (en) * | 1989-04-05 | 1989-10-04 | 卢富雄 | Mould for squeezing plastic film used for automatic film covering |
| CN2072265U (en) * | 1990-07-07 | 1991-02-27 | 江西省通信电缆厂 | Cable core insulation extruder handpiece |
| GB2255742B (en) * | 1991-05-11 | 1994-03-09 | Northern Telecom Ltd | Manufacturing cables |
| 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
Cited By (3)
| 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 |
| CN110289141A (en) * | 2019-06-28 | 2019-09-27 | 江苏中利集团股份有限公司 | A kind of wrapped mold |
| CN110289141B (en) * | 2019-06-28 | 2024-09-13 | 江苏中利集团股份有限公司 | Wrapping die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100426611C (en) | 2008-10-15 |
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| 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 |