CN105172099B - Die assembly for manufacturing air-blowing pipe for cable - Google Patents

Die assembly for manufacturing air-blowing pipe for cable Download PDF

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Publication number
CN105172099B
CN105172099B CN201510622300.8A CN201510622300A CN105172099B CN 105172099 B CN105172099 B CN 105172099B CN 201510622300 A CN201510622300 A CN 201510622300A CN 105172099 B CN105172099 B CN 105172099B
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China
Prior art keywords
core rod
die cap
plunger
die
core
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CN201510622300.8A
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Chinese (zh)
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CN105172099A (en
Inventor
张有勇
庞春天
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Guangdong Gaohang Intellectual Property Operation Co ltd
GUANGZHOU BTC ELECTRONIC TECHNOLOGY CO.,LTD.
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Guangzhou Bao Tai Electronic Technology Co Ltd
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Priority to CN201510622300.8A priority Critical patent/CN105172099B/en
Publication of CN105172099A publication Critical patent/CN105172099A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/10Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/3001Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003Materials, coating or lining therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a die assembly for manufacturing an air-blowing pipe for a cable. The die assembly is characterized in that the die assembly comprises a die core, a die cover and a plunger body; the die core comprises protruding die core bodies and die core grooves, and the protruding die core bodies and the die core grooves are arranged at intervals to form a cylindrical body with a die core cavity; one end of the cylindrical body is sealed, and the outer side of the sealed end is provided with a die core connector; a die core connection hole is formed in the die core connector; the die cover is provided with a die cover body; a die cover cavity is formed in the die cover body; an injection molding hole is formed in the die cover body; and the plunger body comprises a plunger and a plunger connector. When the air-blowing pipe for the cable is manufactured, the die cover is located outside the die core, the die core is located in the die cover cavity, a part of the plunger body is located in the die core cavity, and the other part extends out of the die core cavity; and the protruding die core bodies do not make contact with the inner wall of the die cover cavity, and the die core cavity does not exceed the end face of the die cover. The die assembly has the beneficial effects that a die structure is simple, easy to manufacture, resistant to wear and easy to use; and the manufactured air-blowing pipe is stable in quality, reliable and resistant to twist.

Description

A kind of die assembly for manufacturing cable air-blowing pipeline
The application be the applying date on 05 26th, 2014, it is entitled:A kind of mould for manufacturing cable air-blowing pipeline Tool component, Application No.:The divisional application of 201410224423.1 patent of invention.
Technical field
The invention belongs to mould and pipe technology field, more particularly, to a kind of mould for manufacturing cable air-blowing pipeline Tool component.
Background technology
With developing rapidly for the industries such as electric power, communication, the amount of laying of cable is more and more, on the one hand, due to big in the past The cable of amount is laid using built on stilts, therefore, aerial cable is very in disorder, have impact on city look and feel, meanwhile, bring greatly Potential safety hazard;Therefore, country has promulgated corresponding law, regulation and instruction, it is necessary to be carried out by the way of ground is entered for cable Lay.Cable mainly has poling and direct-buried mode in underground laying, and direct-buried mode needs to dig ground, and needs multiple tracks to examine Formality, therefore, it is cumbersome;Therefore, pipeline laying mode would is that after underground laying principal mode.
In the larger caliber pipeline laid for underground, smaller for diameter and smooth in appearance cable, in pipeline In can directly carry out drawing when having sufficient space and lay, but, drawing cable laying operation progress is relatively slow and easy influence cable Quality, especially optical cable, once the quality of cable is damaged in construction, cable is taken out or the cost of restorability are just very huge Greatly.
For larger city, existing cable pipeline resource pretty nervous generally rent 1KM about 18mm diameters Pipeline, annual price at 200,000 yuan or so, therefore, it is fairly expensive;Nonetheless, the operator in also many areas and non-fortune Battalion business the progress of engineering is influenceed less than conduit resource because renting, or even have can only abandon original engineering.
Therefore, expecting that there is preferable solution in industry, there can be the pipeline of excess room in underground;And production gas The active mold in blowpipe road.
The content of the invention
In order to solve the above problems, the purpose of the present invention is to disclose a kind of set of molds for manufacturing cable air-blowing pipeline Part, it is realized using following technical scheme.
A kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body 22, the core rod groove 21 between adjacent core rod convex body, core rod convex body and mould Core groove is spaced to form the column with hollow mold core cavities 23, and one end of the column is to close, and the closing The outside at end has a core rod connector 25, and core rod connector inside has-core rod connecting hole 24;Die cap has die cap body 31, die cap body interior is hollow die cap chamber 4, on die cap body have insertion to die cap chamber injecting hole 32, die cap it is interior Wall is cylindrical shape;Plunger body includes plunger 11 and the plunger connector 12 positioned at plunger at one end;Used in manufacture cable During air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap is consolidated by one end of die cap body Dingan County is on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located in die cap chamber, the plunger connection of plunger body Head is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located in mold core cavities, plunger body without plunger The end face of mold core cavities is stretched out at end, core rod convex body be with die cap cavity wall it is discontiguous, the other end of the column of mold core cavities End face of the end face without departing from the other end of die cap.
A kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body 22, the core rod groove 21 between adjacent core rod convex body, core rod convex body and mould Core groove is spaced and lower section is continuous core rod inner wall 26, and wall lower section is with hollow mold core cavities 23 in core rod body Column, one end of the column is closing, and the outside of the blind end has a core rod connector 25, in core rod connector Portion has-core rod connecting hole 24;Die cap has die cap body 31, and die cap body interior is hollow die cap chamber 4, die cap body The upper injecting hole 32 with insertion to die cap chamber;Plunger body includes plunger 11 and the plunger connector 12 positioned at plunger at one end; When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap passes through die cap One end of body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located in die cap chamber, plunger The plunger connector of body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located in mold core cavities, plunger The end face of mold core cavities is stretched out in the one end of body without plunger, and core rod convex body is discontiguous, the column of mold core cavities with die cap cavity wall End face of the end face of the other end of body without departing from the other end of die cap.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that die cap it is interior There is at least one die cap groove 33 on wall.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Groove is triangular prism shape or arc column shape or trapezoidal post shapes.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Convex body is triangular prism shape or other suitable shapes.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Groove is parallel to each other.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Convex body is parallel to each other.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the mould Core, die cap, plunger body are all integral structures.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Connecting hole inwall has internal thread;The core rod connector outer surface has thread.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Material be steel or ceramics, the material of die cap is steel or ceramics, and the material of plunger body is steel or ceramics.
Principle of the invention is such:When cable is manufactured with air-blowing pipeline, core rod is arranged on by core rod connector On the head of extrusion molding machine, die cap is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap is located at Outside core rod, core rod is located in die cap chamber, and the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, plunger body A part for plunger is located in mold core cavities, and the end face of mold core cavities, core rod convex body and die cap are stretched out in the one end of plunger body without plunger Cavity wall is discontiguous, the end face of the end face without departing from the other end of die cap of the other end of the column of mold core cavities;Extruding machine Device is outputed, and melts air-blowing pipeline material material, and the material of thawing is continuously injected into injecting hole, and enters into die cap chamber, and notes Full die cap chamber, because injection hole pressure is larger, therefore, the material of thawing can only overflow from die cap chamber, due to the one end in die cap chamber Envelope is fixed on extrusion molding machine and closed, therefore can only be overflowed in die cap chamber another port, because another port temperature is relatively low, Typically by air cooling and water cooling, crystallized rapidly after cooling, cable air-blowing pipeline, shape are so formd by traction Into air-blowing pipeline there is air-blowing tube body, on air-blowing tube body have air-blowing pipe convex body and air-blowing pipe guiding gutter, middle shape Into there is air-blowing tube passage.
Certainly, when there is die cap groove on the inwall of die cap, there is projecting member, further on the air-blowing pipeline of formation When forming compound air-blowing pipeline, during extrusion molding, projecting member is embedded in air-blowing pipe outer tube body, so makes the ectonexine of air-blowing pipe With reference to more firmly, integral structure is more likely formed, in this case, it is not necessary to which viscous gelatin substance in addition is by air-blowing pipeline and gas Blowpipe outer tube body is bonded;During without projecting member, using bonding mode structure can be made more stable, in construction, coiling When two-layer do not depart from, construction when will not produce extra air-blowing resistance.
Plunger body is cylindrical shape, and the plunger connector of plunger body is fixed on the core rod connecting hole of core rod, thereby it is ensured that The formation of the air-blowing tube passage of air-blowing pipeline;In addition, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, due in system When making, the head of extrusion molding machine has a segment distance to the spacing of bosh, therefore squeezing for pull-tube type is formd during actual production Mode processed, namely air-blowing pipeline at bosh appearance and size than smaller at the head of extrusion molding machine, so so that gas There is air-blowing pipe convex body and air-blowing pipe guiding gutter on the air-blowing tube body in blowpipe road, and the air-blowing pipeline for being formed is desired Shape;When core rod convex body and core rod groove are spaced and lower section is continuous core rod inner wall, the cable for being formed Just can be with relatively thick with the wall of the air-blowing tube body of air-blowing pipeline.
The present invention has following main beneficial effect:Mould structure is simple, easily make, it is wear-resisting, easily use;The air-blowing of manufacture Pipeline quality stabilization, reliable, resistance to torsion.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram after assembling of embodiment of the present invention 1.
Fig. 2 is the cross-sectional structure schematic diagram after Fig. 1 amplifies at injecting hole 32.
Fig. 3 is the dimensional structure diagram after a section of air-blowing pipeline manufactured using the die assembly of Fig. 1 is cut open.
Fig. 4 is the cross-sectional structure schematic diagram after Fig. 3 amplifies.
Fig. 5 is the dimensional structure diagram of the core rod of embodiment of the present invention 2.
Fig. 6 is the cross-sectional structure schematic diagram after Fig. 5 amplifies.
Fig. 7 is the dimensional structure diagram of the core rod of embodiment of the present invention 3.
Fig. 8 is the cross-sectional structure schematic diagram after amplifying at injecting hole after the assembling mold components of embodiment 3.
Manufacture for the die assembly of embodiment 3 one section of air-blowing pipeline of Fig. 9 cut open after dimensional structure diagram.
Figure 10 is the cross-sectional structure schematic diagram after Fig. 9 amplifies.
Figure 11 is the dimensional structure diagram of the core rod of embodiment of the present invention 4.
Figure 12 is the cross-sectional structure schematic diagram after Figure 11 amplifies.
Figure 13 is the dimensional structure diagram of the die cap of embodiment of the present invention 4.
Figure 14 is the front view after Figure 13 amplifies.
Figure 15 is the dimensional structure diagram after assembling of embodiment of the present invention 4.
Figure 16 is the front view after Figure 15 amplifies.
Figure 17 is using the die assembly of Figure 15, after one section of the air-blowing pipeline manufactured after die cap groove is blocked is cut open Dimensional structure diagram.
Figure 18 is the cross-sectional structure schematic diagram after Figure 17 amplifies.
During Figure 19 is embodiment of the present invention 5, using being produced after the core rod of embodiment 2 and the die cap of embodiment 4 One section of air-blowing pipeline cut open after dimensional structure diagram.
Figure 20 is the cross-sectional structure schematic diagram after Figure 19 amplifies.
Figure 21 is embodiment of the present invention 6, is that embodiment 5 is further processed, one section of the air-blowing pipeline of manufacture Dimensional structure diagram after cutting open.
Specific embodiment
To enable those skilled in the art more accurately to understand the application, now the mark of the accompanying drawing to being related in the present invention is made It is as described below:11-plunger, 12-plunger connector, 21-core rod groove, 22-core rod convex body, 23-mold core cavities, 24- Core rod connecting hole, 25-core rod connector, 26-core rod inner wall, 31-die cap body, 32-injecting hole, 33-die cap is recessed Groove, 4-die cap chamber, 5-air-blowing tube body, 211-air-blowing pipe convex body, 221-air-blowing pipe guiding gutter, 231-air-blowing pipe leads to Road, 6-projecting member, 7-air-blowing pipe outer tube body.
Embodiment 1
See Fig. 1 to Fig. 4, a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes Core rod, die cap, plunger body;Core rod includes core rod convex body 22, the core rod groove 21 between adjacent core rod convex body, Core rod convex body is spaced with core rod groove to form the column with hollow mold core cavities 23, and one end of the column is envelope Close, and the outside of the blind end has a core rod connector 25, core rod connector inside has-core rod connecting hole 24;Die cap With die cap body 31, die cap body interior is hollow die cap chamber 4, has injection of the insertion to die cap chamber on die cap body Hole 32, the inwall of die cap is cylindrical shape;Plunger body includes plunger 11 and the plunger connector 12 positioned at plunger at one end; When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap passes through die cap One end of body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located in die cap chamber, plunger The plunger connector of body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located in mold core cavities, plunger The end face of mold core cavities is stretched out in the one end of body without plunger, and core rod convex body is discontiguous, the column of mold core cavities with die cap cavity wall End face of the end face of the other end of body without departing from the other end of die cap.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the core rod groove is three Prism shape.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the core rod convex body is Triangular prism shape.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the core rod groove is phase It is mutually parallel.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the core rod convex body is It is parallel to each other.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the core rod, die cap, post Cock body is integral structure.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that in the core rod connecting hole Wall has internal thread;The core rod connector outer surface has thread.
Die assembly for manufacturing cable air-blowing pipeline described above, it is characterised in that the material of the core rod is Steel, the material of die cap is steel, and the material of plunger body is steel.
The principle of this embodiment is such:When cable is manufactured with air-blowing pipeline, core rod is pacified by core rod connector On the head of extrusion molding machine, die cap is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap Outside core rod, core rod is located in die cap chamber, and the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, plunger A part for the plunger of body is located in mold core cavities, and the end face of mold core cavities is stretched out in the one end of plunger body without plunger, core rod convex body with Die cap cavity wall is discontiguous, the end face of the end face without departing from the other end of die cap of the other end of the column of mold core cavities;Squeeze Molding machine device is outputed, and melts air-blowing pipeline material material, and the material of thawing is continuously injected into injecting hole, and enters into die cap chamber, And die cap chamber is filled, because injection hole pressure is larger, therefore, the material of thawing can only overflow from die cap chamber, due to die cap chamber One end is fixed on extrusion molding machine and closes envelope, therefore can only be overflowed in die cap chamber another port, due to another port temperature Relatively low, typically by air cooling and water cooling, a bit of preferably since extrusion head is air cooling, Ran Houjin Enter water cooling, crystallized rapidly after cooling, cable air-blowing pipeline is so formd by traction, the air-blowing pipeline of formation has gas Blowpipe body 5, has air-blowing pipe convex body 211 and air-blowing pipe guiding gutter 221 on air-blowing tube body, centre is formed with air-blowing pipe and leads to Road 231.
Plunger body is cylindrical shape, and the plunger connector of plunger body is fixed on the core rod connecting hole of core rod, thereby it is ensured that The formation of the air-blowing tube passage of air-blowing pipeline;In addition, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, due in system When making, the head of extrusion molding machine has a segment distance to the spacing of bosh, therefore squeezing for pull-tube type is formd during actual production Mode processed, namely air-blowing pipeline at bosh appearance and size than smaller at the head of extrusion molding machine, so so that gas There is air-blowing pipe convex body and air-blowing pipe guiding gutter on the air-blowing tube body in blowpipe road, and the air-blowing pipeline for being formed is desired Shape.
Embodiment 2
See Fig. 5, Fig. 6 and referring to figs. 1 to Fig. 4, a kind of die assembly for manufacturing cable air-blowing pipeline, substantially together Embodiment 1, difference is:Core rod convex body is spaced with core rod groove and lower section is continuous core rod inner wall 26, wall lower section is the column with hollow mold core cavities 23 in core rod body, the cable for the being formed air-blowing pipe of air-blowing pipeline The wall of body is just relatively thick, and air-blowing pipeline is more solid, but material consumption is relatively more;The core rod, die cap, the material of plunger body Material is all ceramics;Because ceramics have high temperature resistant, wear-resistant, acid and alkali-resistance, easy cleaning and other effects, therefore, die assembly is quite passed through It is durable long, using still as new, and the die assembly that Steel material makes is used after 200 times, after using more than 10 times just Occur in that larger wear phenomenon.
Embodiment 3
See Fig. 7 to Figure 10, a kind of die assembly for manufacturing cable air-blowing pipeline, substantially with embodiment 2, no It is with part:The core rod convex body is arc column shape, and core rod groove is approximate trapezoid post shapes, the gas that this mode is formed The air-blowing pipe guiding gutter in blowpipe road is bigger, and pressure higher can be born during air-blowing, and air-blowing speed is faster.
Embodiment 4
See Figure 11 to Figure 18, a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it is included There are core rod, die cap, plunger body;Core rod includes core rod convex body 22, the core rod groove between adjacent core rod convex body 21, core rod convex body is spaced with core rod groove and lower section is continuous core rod inner wall 26, and wall lower section is tool in core rod body There is the column of hollow mold core cavities 23, one end of the column is to close, and the outside of the blind end connects with a core rod Joint 25, core rod connector inside has-core rod connecting hole 24;Die cap has die cap body 31, and die cap body interior is hollow Die cap chamber 4, on die cap body have insertion to die cap chamber injecting hole 32;Plunger body includes plunger 11 and positioned at plunger The plunger connector 12 of one end;When cable is manufactured with air-blowing pipeline, core rod is arranged on extrusion molding machine by core rod connector On head, die cap is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap is located at outside core rod, mould Core is located in die cap chamber, and the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, one of the plunger of plunger body Divide and be located in mold core cavities, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body and die cap cavity wall are not Contact, the end face of the end face without departing from the other end of die cap of the other end of the column of mold core cavities;Have on the inwall of die cap One die cap groove 33.
Principle is repeated no more with embodiment 1, due on the inwall of die cap have die cap groove, therefore formed air-blowing pipe There is projecting member, when compound air-blowing pipeline is further formed, during extrusion molding, projecting member is embedded in air-blowing pipe outer tube on road In body, the ectonexine of air-blowing pipe is combined more firmly, be more likely formed integral structure, in this case, it is not necessary in addition Viscous gelatin substance air-blowing pipeline is bonded with air-blowing pipe outer tube body;During without projecting member, can using bonding mode So that structure is more stable, in construction, coiling, two-layer is not departed from, and extra air-blowing resistance will not be produced in construction.
Obviously, in the die assembly of cable described above with air-blowing pipeline, the inwall upper mould cover groove 33 of the die cap It can be multiple.
Certainly, produce cable with air-blowing pipeline when, can using closure component block die cap groove, produce as Figure 17, the cable air-blowing pipeline shown in 18, so make the purposes of die assembly wider.
Embodiment 5
It is using the air-blowing pipe produced after the core rod of embodiment 2 and the die cap of embodiment 4 see Figure 19 to Figure 20 One section of road cut open after dimensional structure diagram;The cable air-blowing pipeline has one and protrudes from the convex of air-blowing tube body 5 Go out part 6;The presence of projecting member, can be such that air-blowing pipeline preferably positions.
Certainly, projecting member can also be multiple, or be other shapes.
Embodiment 6
It is that embodiment 5 is further processed see Figure 21, and reference implementation example 4- embodiments 5, the gas of manufacture One section of blowpipe road cut open after dimensional structure diagram;There is die cap groove, on the air-blowing pipeline of formation on the inwall of die cap With projecting member, when compound air-blowing pipeline is further formed, during extrusion molding, projecting member is embedded in air-blowing pipe outer tube body 7 In, the ectonexine of air-blowing pipe is combined more firmly, integral structure is more likely formed, in this case, it is not necessary in addition Viscous gelatin substance is bonded air-blowing pipeline with air-blowing pipe outer tube body;During without projecting member, use the bonding mode can be with Make structure more stable, two-layer is not departed from construction, coiling, and extra air-blowing resistance will not be produced in construction.
Certainly, the die assembly for manufacturing cable air-blowing pipeline in above-mentioned embodiment 2-5, it can also be included There are core rod, die cap, plunger body;Core rod includes multiple core rod convex bodies 22, the core rod between adjacent core rod convex body Groove 21, core rod convex body is spaced with core rod groove to form the column with hollow mold core cavities 23, the column One end is closing, and the outside of the blind end has a core rod connector 25, and core rod connector inside has-core rod connection Hole 24;Die cap has die cap body 31, and die cap body interior is hollow die cap chamber 4, has insertion to die cap on die cap body The injecting hole 32 in chamber, the inwall of die cap is cylindrical shape;Plunger body includes plunger 11 and the plunger positioned at plunger at one end Connector 12;When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, die cap It is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap is located at outside core rod, core rod is located at die cap In chamber, the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located at core rod In chamber, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body is discontiguous, core rod with die cap cavity wall End face of the end face of the other end of the column in chamber without departing from the other end of die cap.
Certainly, the die assembly for manufacturing cable air-blowing pipeline in above-mentioned embodiment 1-3, it can also be included There are core rod, die cap, plunger body;Core rod includes core rod convex body 22, the core rod groove between adjacent core rod convex body 21, core rod convex body is spaced with core rod groove and lower section is continuous core rod inner wall 26, and wall lower section is tool in core rod body There is the column of hollow mold core cavities 23, one end of the column is to close, and the outside of the blind end connects with a core rod Joint 25, core rod connector inside has-core rod connecting hole 24;Die cap has die cap body 31, and die cap body interior is hollow Die cap chamber 4, on die cap body have insertion to die cap chamber injecting hole 32;Plunger body includes plunger 11 and positioned at plunger The plunger connector 12 of one end;When cable is manufactured with air-blowing pipeline, core rod is arranged on extrusion molding machine by core rod connector On head, die cap is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap is located at outside core rod, mould Core is located in die cap chamber, and the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, one of the plunger of plunger body Divide and be located in mold core cavities, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body and die cap cavity wall are not Contact, the end face of the end face without departing from the other end of die cap of the other end of the column of mold core cavities.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that die cap it is interior Can all have at least one die cap groove 33 on wall.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Groove part can be triangular prism shape or arc column shape or trapezoidal post shapes.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Convex body can be triangular prism shape or other suitable shapes.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Groove is parallel to each other.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Convex body is parallel to each other.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the mould Core, die cap, plunger body are all integral structures.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the core rod Connecting hole inwall can also have internal thread;The core rod connector outer surface can also have thread simultaneously.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that the mould Core, die cap, the material of plunger body all can be steel or ceramics.
Any one described above is used to manufacture the die assembly of cable air-blowing pipeline, it is characterised in that all core rods The outward flange of convex body is on the side of same cylinder;The cable that this structure is produced is with air-blowing pipeline is symmetrical, structure Be not in weight inequality in stabilization, construction and produce free rolling phenomenon.
Principle of the invention is such:When cable is manufactured with air-blowing pipeline, core rod is arranged on by core rod connector On the head of extrusion molding machine, die cap is fixedly mounted on the head of extrusion molding machine by one end of die cap body, and die cap is located at Outside core rod, core rod is located in die cap chamber, and the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, plunger body A part for plunger is located in mold core cavities, and the end face of mold core cavities, core rod convex body and die cap are stretched out in the one end of plunger body without plunger Cavity wall is discontiguous, the end face of the end face without departing from the other end of die cap of the other end of the column of mold core cavities;Extruding machine Device is outputed, and melts air-blowing pipeline material material, and the material of thawing is continuously injected into injecting hole, and enters into die cap chamber, and notes Full die cap chamber, because injection hole pressure is larger, therefore, the material of thawing can only overflow from die cap chamber, due to the one end in die cap chamber Envelope is fixed on extrusion molding machine and closed, therefore can only be overflowed in die cap chamber another port, because another port temperature is relatively low, Typically by air cooling and water cooling, crystallized rapidly after cooling, cable air-blowing pipeline, shape are so formd by traction Into air-blowing pipeline there is air-blowing tube body, on air-blowing tube body have air-blowing pipe convex body and air-blowing pipe guiding gutter, middle shape Into there is air-blowing tube passage.
Certainly, when there is die cap groove on the inwall of die cap, there is projecting member, further on the air-blowing pipeline of formation When forming compound air-blowing pipeline, during extrusion molding, projecting member is embedded in air-blowing pipe outer tube body, so makes the ectonexine of air-blowing pipe With reference to more firmly, integral structure is more likely formed, in this case, it is not necessary to which viscous gelatin substance in addition is by air-blowing pipeline and gas Blowpipe outer tube body is bonded;During without projecting member, using bonding mode structure can be made more stable, in construction, coiling When two-layer do not depart from, construction when will not produce extra air-blowing resistance.
Plunger body is cylindrical shape, and the plunger connector of plunger body is fixed on the core rod connecting hole of core rod, thereby it is ensured that The formation of the air-blowing tube passage of air-blowing pipeline;In addition, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, due in system When making, the head of extrusion molding machine has a segment distance to the spacing of bosh, therefore squeezing for pull-tube type is formd during actual production Mode processed, namely air-blowing pipeline at bosh appearance and size than smaller at the head of extrusion molding machine, so so that gas There is air-blowing pipe convex body and air-blowing pipe guiding gutter on the air-blowing tube body in blowpipe road, and the air-blowing pipeline for being formed is desired Shape;When core rod convex body and core rod groove are spaced and lower section is continuous core rod inner wall, the cable for being formed Just can be with relatively thick with the wall of the air-blowing tube body of air-blowing pipeline.
Certainly, the present invention when in use, completely can be recessed by part core rod groove or whole core rods using the technology of closure Groove is blocked, and so, when the cable of same size is produced with air-blowing pipeline, can selectively control the number of core rod groove Amount.
Carry out laying experiment using the air-blowing pipeline of embodiment 5, ectonexine is all high-density polyethylene material, repeatedly around Put 238 times, there are no the segregation phenomenon of air-blowing pipe outer tube body and interior tube body, and the inner tube and outer tube that could be used without projecting member are done Into air-blowing pipeline, the inner and outer pipes lamination for having occurred as soon as many places for 3 times is laid repeatedly;During production, in being carried out using viscose glue After outer tube is bonded, equally carry out laying experiment, also only withstood the experiment of 12 times, layering has been occurred as soon as at the 13rd time;To upper Three samples are stated, each sample is 800 meters, in 10 sections of the air-blowing pipeline of each random 1.5 meters long of interception of length direction, air-blowing pipe Road external diameter is 24mm, and it is 150N, the experiment that speed is 10 beats/min, 10 samples of embodiment 5 to carry out ± 180 degree, bear a heavy burden Product, cracking and lamination are had no by the torsion of 30 minutes;And it is not glued, occurring as soon as layering after 6 times are reversed Phenomenon;Bond, by occurring in that lamination after 38 times;Therefore, the air-blowing pipeline of the Making mold of embodiment 5 has More excellent resistance to torsion, folding quality.
The present invention has following main beneficial effect:Mould structure is simple, easily make, it is wear-resisting, easily use;The air-blowing of manufacture Pipeline quality stabilization, reliable, resistance to torsion.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that design of the invention can be by other a variety of shapes Formula is implemented to use, and they are also fallen within protection scope of the present invention.

Claims (4)

1. a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body(22), core rod groove between adjacent core rod convex body(21), core rod convex body Formed spaced with core rod groove has hollow mold core cavities(23)Column, one end of the column is closing, and The outside of the blind end has a core rod connector(25), core rod connector inside has-core rod connecting hole(24);Die cap has There is die cap body(31), die cap body interior is hollow die cap chamber(4), there is injection of the insertion to die cap chamber on die cap body Hole(32), the inwall of die cap is cylindrical shape;Plunger body includes plunger(11)And positioned at the plunger connection of plunger at one end Head(12);When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap leads to The one end for crossing die cap body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located at die cap chamber Interior, the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located at mold core cavities In, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body is discontiguous, mold core cavities with die cap cavity wall Column the other end end face of the end face without departing from the other end of die cap;The core rod, die cap, plunger body are all integral types Structure;The core rod convex body is parallel to each other.
2. a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body(22), core rod groove between adjacent core rod convex body(21), core rod convex body Formed spaced with core rod groove has hollow mold core cavities(23)Column, one end of the column is closing, and The outside of the blind end has a core rod connector(25), core rod connector inside has-core rod connecting hole(24);Die cap has There is die cap body(31), die cap body interior is hollow die cap chamber(4), there is injection of the insertion to die cap chamber on die cap body Hole(32), the inwall of die cap is cylindrical shape;Plunger body includes plunger(11)And positioned at the plunger connection of plunger at one end Head(12);When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap leads to The one end for crossing die cap body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located at die cap chamber Interior, the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located at mold core cavities In, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body is discontiguous, mold core cavities with die cap cavity wall Column the other end end face of the end face without departing from the other end of die cap;The core rod, die cap, plunger body are all integral types Structure;There is at least one die cap groove on the inwall of die cap(33);The core rod convex body is parallel to each other.
3. a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body(22), core rod groove between adjacent core rod convex body(21), core rod convex body Formed spaced with core rod groove has hollow mold core cavities(23)Column, one end of the column is closing, and The outside of the blind end has a core rod connector(25), core rod connector inside has-core rod connecting hole(24);Die cap has There is die cap body(31), die cap body interior is hollow die cap chamber(4), there is injection of the insertion to die cap chamber on die cap body Hole(32), the inwall of die cap is cylindrical shape;Plunger body includes plunger(11)And positioned at the plunger connection of plunger at one end Head(12);When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap leads to The one end for crossing die cap body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located at die cap chamber Interior, the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located at mold core cavities In, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body is discontiguous, mold core cavities with die cap cavity wall Column the other end end face of the end face without departing from the other end of die cap;The core rod, die cap, plunger body are all integral types Structure;There is at least one die cap groove on the inwall of die cap(33);The core rod groove is triangular prism shape or arc column shape Or trapezoidal post shapes;The core rod convex body is parallel to each other.
4. a kind of die assembly for manufacturing cable air-blowing pipeline, it is characterised in that it includes core rod, die cap, plunger Body;Core rod includes core rod convex body(22), core rod groove between adjacent core rod convex body(21), core rod convex body Formed spaced with core rod groove has hollow mold core cavities(23)Column, one end of the column is closing, and The outside of the blind end has a core rod connector(25), core rod connector inside has-core rod connecting hole(24);Die cap has There is die cap body(31), die cap body interior is hollow die cap chamber(4), there is injection of the insertion to die cap chamber on die cap body Hole(32), the inwall of die cap is cylindrical shape;Plunger body includes plunger(11)And positioned at the plunger connection of plunger at one end Head(12);When cable is manufactured with air-blowing pipeline, core rod is arranged on the head of extrusion molding machine by core rod connector, and die cap leads to The one end for crossing die cap body is fixedly mounted on the head of extrusion molding machine, and die cap is located at outside core rod, and core rod is located at die cap chamber Interior, the plunger connector of plunger body is fixed in the core rod connecting hole of core rod, and a part for the plunger of plunger body is located at mold core cavities In, the end face of mold core cavities is stretched out in the one end of plunger body without plunger, and core rod convex body is discontiguous, mold core cavities with die cap cavity wall Column the other end end face of the end face without departing from the other end of die cap;The core rod, die cap, plunger body are all integral types Structure;There is at least one die cap groove on the inwall of die cap(33);The core rod groove is triangular prism shape or arc column shape Or trapezoidal post shapes;The core rod convex body is triangular prism shape or arc column shape or trapezoidal cylindricality;The core rod convex body is It is parallel to each other.
CN201510622300.8A 2014-05-26 2014-05-26 Die assembly for manufacturing air-blowing pipe for cable Active CN105172099B (en)

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CN201510622300.8A Active CN105172099B (en) 2014-05-26 2014-05-26 Die assembly for manufacturing air-blowing pipe for cable
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CN106003652A (en) * 2016-07-15 2016-10-12 江苏鑫丰塑业有限公司 Extrusion mold of square electric wire

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CN101635191A (en) * 2009-05-21 2010-01-27 沈群华 Three-color wire cable jacket extrusion mold
CN101635190A (en) * 2009-05-21 2010-01-27 沈群华 Two-color cable sheath extruded mould with improved structure
CN203863979U (en) * 2014-05-26 2014-10-08 常熟市谷雷特机械产品设计有限公司 Die component for manufacturing air blowing pipelines for cables

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CN105109011B (en) 2017-04-12
CN105172098A (en) 2015-12-23
CN105172098B (en) 2017-04-19
CN105172099A (en) 2015-12-23
CN103978656A (en) 2014-08-13
CN105109011A (en) 2015-12-02

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