CN217181913U - Extrusion molding die for photoelectric hybrid cable - Google Patents
Extrusion molding die for photoelectric hybrid cable Download PDFInfo
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- CN217181913U CN217181913U CN202123379216.8U CN202123379216U CN217181913U CN 217181913 U CN217181913 U CN 217181913U CN 202123379216 U CN202123379216 U CN 202123379216U CN 217181913 U CN217181913 U CN 217181913U
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Abstract
The utility model provides an extrusion molding die for a photoelectric hybrid cable, which comprises a die core and a die sleeve matched with the die core; the hollow cone of the mold core is inserted into the conical cavity of the mold sleeve, and the positioning rod of the mold core is correspondingly inserted into the rod hole of the sleeve, so that the assembly of the mold core and the mold sleeve is realized; and a gasket is arranged on the positioning rod between the mold core and the mold sleeve, so that the mold core and the mold sleeve form a flow channel. The utility model provides an insulating and sheath can easily peel off so that later stage reprocessing use and tightly wrap can the activity freedom can not cause the disconnected fine or the bad problem of communication of optic fibre because of external factors the problem of the bad phenomenon.
Description
Technical Field
The utility model relates to an optical cable production facility field specifically is an extrusion molding mould for hybrid optical cable.
Background
The photoelectric hybrid cable integrates the optical unit and the electric unit simultaneously, can provide signal transmission for small base station equipment and simultaneously supply power for the small base station equipment, and is one of mainstream schemes for solving the problem of coverage of the 5G small base station.
Considering the environment-friendly flame retardance of cables for base stations, the insulation and outer sheath materials of the photoelectric hybrid cable are designed to be fuel-resistant materials, the insulation and the sheath can be bonded together in the production process, so that the subsequent finished product processing is troublesome, and the intermediate tight package needs a certain moving space after the finished product is produced to ensure smooth communication, so that a mold needs to be designed to enable the insulation and the sheath to be easily stripped so as to be reprocessed and used at the later stage, and the tight package can move freely without causing fiber breakage or bad communication of optical fibers due to external factors.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current problem, provide a mixed cable of photoelectricity is with extrusion molding mould, realized that insulation and sheath can easily peel off, be convenient for the later stage reprocess use and tightly wrap can the activity freedom, can not take place to cause the disconnected fine or the bad phenomenon of communication of optic fibre because of external factors.
The utility model relates to an extrusion molding die for a photoelectric hybrid cable, which comprises a die core and a die sleeve matched with the die core;
the middle part of the mold core is a hollow cone, and the center of the hollow cone is a mold core opening; two positioning holes are respectively formed in the directions of the X axis and the Y axis of the center of the die core opening, and a positioning rod is arranged in each positioning hole;
the center of the die sleeve is a die sleeve discharge port, a conical cavity communicated with the die sleeve discharge port is formed along the feed end of the die sleeve discharge port, and two rod holes matched with the positioning rods on the die core are correspondingly formed in the X-axis direction and the Y-axis direction of the center of the die sleeve discharge port; the die sleeves outside the two rod holes in the X-axis direction are respectively provided with a positioning pin hole for installing the die into the machine head;
the taper angle of the hollow cone body is smaller than that of the conical cavity;
the hollow cone is inserted into the conical cavity, and the positioning rod is correspondingly inserted into the rod hole, so that the assembly of the mold core and the mold sleeve is realized; and a gasket is arranged on the positioning rod between the mold core and the mold sleeve, so that the mold core and the mold sleeve form a flow channel.
In a further improvement, the bearing diameter ends of the die core opening and the die sleeve discharge opening are made of tungsten steel materials and are subjected to 2Cr13 heat treatment.
In a further refinement, the hollow cone has a cone angle of 74 °.
In a further refinement, the conical cavity has a cone angle of 82 °.
The improved mould is characterized in that a rectangular pipe is arranged in the center of the mould core opening, and circular pipes are arranged on two sides of the rectangular pipe in the same horizontal direction at intervals.
In a further improvement, the rectangular pipe and the two circular pipes extend outwards from the die core opening, and the length of the two circular pipes is 1mm longer than that of the rectangular pipe.
Further improved, the distance between each of the two circular tubes and the rectangular tube is 0.15 mm.
Further improved, the bearing diameter of the die sleeve is 2 mm.
The improved structure is characterized in that the upper end and the lower end of the discharge hole of the die sleeve are cambered surfaces, and the upper end and the lower end of the discharge hole of the die sleeve are both protruded to avoid the phenomenon of pits on the surface of a finished product.
The utility model has the advantages that:
the insulation and the sheath of the photoelectric mixed cable prepared by the mold of the utility model can be easily separated, thereby bringing great convenience for further processing of the following products; the production cost can be saved, the required flame retardant can be used at will for insulation instead of the cross-linking flame retardant with higher cost, and the insulating part does not need to be added with talcum powder in the production of finished products; in addition, the pipe penetrating the insulated wire is positioned in the bearing diameter of the die sleeve opening to ensure that the insulated wire is sheathed in a pipe extruding mode during production of a finished product, so that the insulated wire and the outer sheath material are not adhered to each other; the pipe with the middle through tight package is arranged in the diameter of the die sleeve mouth, so that the finished product is ensured that the middle hole is large enough to allow the tight package to move freely without being influenced by external factors; the pipe-to-pipe distance is controlled to be 0.15mm, because the outer diameter of an overlarge finished cable can exceed the range and the wall thickness can not meet the requirement, the insulation and tight package of the finished cable can not be separated if the outer diameter of the finished cable is too small, the finished cable is easy to stress and deform, the phenomenon that the insulation and the sheath can be easily stripped, the insulation and the sheath can be conveniently processed and used at the later stage, and the tight package can move freely, so that the phenomenon that the optical fiber is broken or the communication is poor can not be caused due to external factors.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the mold core of the present invention;
FIG. 3 is a cross-sectional view of the mold core of the present invention;
FIG. 4 is a cross-sectional view of a die core opening of the present invention;
FIG. 5 is a layout view of the tube in the die core opening of the present invention;
fig. 6 is a front view of the die case of the present invention;
fig. 7 is a sectional view of the die case of the present invention;
fig. 8 is a front view of the die case discharge port of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, the utility model relates to an extrusion molding die for a photoelectric hybrid cable, which comprises a die core 1 and a die sleeve 2 matched with the die core;
as shown in fig. 2-5, the middle part of the mold core is a hollow cone 3, and the center of the hollow cone is a mold core opening 4; two positioning holes 5 are respectively formed in the directions of the X axis and the Y axis of the center of the die core opening, and a positioning rod 6 is arranged in each positioning hole;
a rectangular pipe 7 is arranged in the center of the die core opening, and circular pipes 8 are respectively arranged on two sides of the rectangular pipe in the same horizontal direction at intervals;
it should be noted that: due to the consideration of the retractility of the tight package, the rectangular tube is adopted, so that a larger space can be provided for retracting the tight package, the situations of optical fiber loss, fiber breakage and the like are avoided, and the size is 1.5 x the width and 1.8 mm; the radiuses of four chamfers of the rectangular pipe are 0.5mm, and the chamfer design is used because four corners of a finished product are arc-shaped after chamfering, the wall thicknesses of the four corners are increased to enhance the supporting force, and the phenomenon of deformation pits is avoided;
the rectangular pipe 7 and the two circular pipes 8 extend out of the die core opening, and the length of the two circular pipes is 1mm longer than that of the rectangular pipe, so that an interlayer is arranged between the finished insulated wire and the tight package;
the round pipe 8 adopts a pipe extruding type structure, the adhesion of an insulated wire and a tight package with the outer layer of the sheath is avoided, the root is in smooth transition, and the size is phi 1.3 mm-phi 1.5 mm;
the distance between the two circular tubes and the rectangular tube is 0.15mm, so that an interlayer is arranged between the insulated wire and the tight package, and the surface of a finished product is smooth.
As shown in fig. 6-8, the center of the die sleeve 2 is a die sleeve discharge port 9, a conical cavity 10 communicated with the die sleeve discharge port is formed along the feed end of the die sleeve discharge port, and two rod holes 11 matched with positioning rods on the die core are correspondingly formed along the center of the die sleeve discharge port in the directions of the X axis and the Y axis, so that the positioning rods of the die core can be conveniently inserted, and the die core and the die sleeve can not slide relatively to influence the concentricity in the production process when assembled together; the die sleeves outside the two rod holes in the X-axis direction are respectively provided with a positioning pin hole 12 for installing the die into the machine head, so that the die can not slide relatively in the machine head in production.
The diameter of the die sleeve is 2mm, the end parts of all the tubes in the die core are required to be in the diameter bearing range, so that the outer sheath of the insulated wire is produced in a tube extruding mode, and the insulated wire is prevented from being adhered to the outer sheath.
It should be noted that: the surface chamfer design of mold core and die sleeve facilitates the aircraft nose of packing into.
In order to stabilize the extrusion pressure and form the plastic extrusion device, the taper angle of the hollow cone is smaller than that of the conical cavity, the taper angle of the hollow cone is 74 degrees, and the taper angle of the conical cavity is 82 degrees.
The bearing end 13 of the die core opening and the die sleeve discharge opening is made of tungsten steel materials and subjected to 2Cr13 heat treatment, the tungsten steel materials are wear-resistant, and the service life of the die can be prolonged.
The holes in the die core and the die sleeve are polished, and the joint of the die core and the die sleeve is smooth without steps.
The hollow cone is inserted into the conical cavity, and the positioning rod is correspondingly inserted into the rod hole, so that the assembly of the mold core and the mold sleeve is realized, and the cost mold is combined; and a gasket 14 is arranged on a positioning rod between the mold core and the mold sleeve, so that a flow channel 15 for discharging during extrusion molding is formed between the mold core and the mold sleeve.
It should be noted that: the gasket is designed to control the amount of the core tube entering the bearing diameter of the die sleeve and the volume of the flow channel.
The insulation and the sheath of the photoelectric mixed cable prepared by the mold of the utility model can be easily separated, thereby bringing great convenience for further processing of the following products; the production cost can be saved, the required flame retardant can be used at will for insulation instead of the cross-linking flame retardant with higher cost, and the insulating part does not need to be added with talcum powder in the production of finished products; in addition, the pipe penetrating the insulated wire is positioned in the bearing diameter of the die sleeve opening to ensure that the insulated wire is sheathed in a pipe extruding mode during production of a finished product, so that the insulated wire and the outer sheath material are not adhered to each other; the pipe of the middle tightening bag is arranged in the bearing diameter of the die sleeve opening to ensure that the middle hole of the finished product is large enough to allow the tightening bag to move freely without being influenced by external factors; the pipe is at 0.15mm apart from control between the pipe, because too big finished product cable external diameter can exceed scope and wall thickness can not reach the requirement, the finished product cable is insulating can not separate with tight package if the undersize, and the easy atress of finished product cable is out of shape like this, uses this mould can not appear not little phenomenon.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (9)
1. An extrusion molding die for a photoelectric hybrid cable is characterized by comprising a die core and a die sleeve matched with the die core;
the middle part of the mold core is a hollow cone, and the center of the hollow cone is a mold core opening; two positioning holes are respectively formed in the directions of the X axis and the Y axis of the center of the die core opening, and a positioning rod is arranged in each positioning hole;
the center of the die sleeve is a die sleeve discharge port, a conical cavity communicated with the die sleeve discharge port is formed along the feed end of the die sleeve discharge port, and two rod holes matched with the positioning rods on the die core are correspondingly formed in the X-axis direction and the Y-axis direction of the center of the die sleeve discharge port; the die sleeves outside the two rod holes in the X-axis direction are respectively provided with a positioning pin hole for installing the die into the machine head;
the taper angle of the hollow cone body is smaller than that of the conical cavity;
the hollow cone is inserted into the conical cavity, and the positioning rod is correspondingly inserted into the rod hole, so that the assembly of the mold core and the mold sleeve is realized; and a gasket is arranged on the positioning rod between the mold core and the mold sleeve, so that the mold core and the mold sleeve form a flow channel.
2. The extrusion molding die for the photoelectric hybrid cable as claimed in claim 1, wherein the bearing end of the die core opening and the die sleeve discharge opening is made of tungsten steel.
3. The extrusion die for an optical/electrical hybrid cable according to claim 1, wherein the taper angle of the hollow cone is 74 °.
4. The extrusion die for an optical/electrical hybrid cable according to claim 1, wherein the tapered cavity has a taper angle of 82 °.
5. The extrusion molding die for the photoelectric hybrid cable according to claim 4, wherein a rectangular tube is arranged in the center of the die core opening, and circular tubes are arranged on two sides of the rectangular tube in the same horizontal direction at intervals.
6. The extrusion mold for an optical/electrical hybrid cable according to claim 5, wherein the rectangular tube and the two circular tubes extend outward of the mold core opening, and the two circular tubes have a length of 1mm longer than the rectangular tube.
7. The extrusion mold for an optical/electrical hybrid cable according to claim 5, wherein the two circular tubes are spaced apart from the rectangular tube by 0.15 mm.
8. The extrusion molding die for the optical/electrical hybrid cable according to claim 1, wherein the bearing diameter of the die sleeve is 2 mm.
9. The extrusion molding die for the photoelectric hybrid cable according to claim 1, wherein the upper end and the lower end of the discharge hole of the die sleeve are cambered surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379216.8U CN217181913U (en) | 2021-12-30 | 2021-12-30 | Extrusion molding die for photoelectric hybrid cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379216.8U CN217181913U (en) | 2021-12-30 | 2021-12-30 | Extrusion molding die for photoelectric hybrid cable |
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| Publication Number | Publication Date |
|---|---|
| CN217181913U true CN217181913U (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123379216.8U Active CN217181913U (en) | 2021-12-30 | 2021-12-30 | Extrusion molding die for photoelectric hybrid cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431489A (en) * | 2022-09-05 | 2022-12-06 | 江苏亨通线缆科技有限公司 | Needle tube type flat photoelectric mixed cable sheath extrusion die |
-
2021
- 2021-12-30 CN CN202123379216.8U patent/CN217181913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431489A (en) * | 2022-09-05 | 2022-12-06 | 江苏亨通线缆科技有限公司 | Needle tube type flat photoelectric mixed cable sheath extrusion die |
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