CN111816387A - Color separation cable extrusion die - Google Patents
Color separation cable extrusion die Download PDFInfo
- Publication number
- CN111816387A CN111816387A CN202010620129.8A CN202010620129A CN111816387A CN 111816387 A CN111816387 A CN 111816387A CN 202010620129 A CN202010620129 A CN 202010620129A CN 111816387 A CN111816387 A CN 111816387A
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- die
- material injection
- groove
- boss
- mould
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/34—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables
- H01B13/345—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables by spraying, ejecting or dispensing marking fluid
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a die for extruding a color separation cable, which is tubular, and the outer surface of the die is provided with a material injection groove; the material injection groove is arranged at the edge along the axial direction of the mould, and the outer surface of the mould is provided with a shunting groove which surrounds the outer surface of the mould; the two ends of the material injection groove are connected with the splitter box, and the material in the material injection groove flows into the splitter box through the two ends; along the axial direction of the die, on one side of the splitter box and between the splitter box and the end part of the die, the outer surface of the die is provided with a material distribution surface which is lower than the outer surface of the die, and the material distribution surface is provided with a plurality of small material injection holes which are distributed in a surrounding way; the inner side of the die is provided with a boss at the position of the small material injection hole, a material gathering groove is formed between the boss and the inner wall of the die and communicated with the small material injection hole, and materials are injected into the material gathering groove through the small material injection hole; along the axial direction of the die, the height of the boss is lower than that of the end face of the die; the invention can realize normal production of the color separation cable, and can save the production cost compared with a special machine head with a complex structure.
Description
Technical Field
The invention relates to a die for extruding a color separation cable, which is used for extruding an outer part color layer outside an insulating layer.
Background
The cable is often made into different colors due to the identification requirement, so that the cable is convenient to wire and use. The color separation cable is produced, and is characterized in that a core insulation layer is formed by compounding a same-color insulation layer and an outer part color layer. The advantage is that the insulating material of insulating production line host computer does not change, does different colours and only needs to change the color of outer covering thin layer. Not only can reduce the material waste of host computer trade look, the thin layer trades the look time short moreover, and is efficient. Meanwhile, on the premise of not changing the host machine insulating material, auxiliary materials can be added into the color separation layer, so that special functions of the cable, such as flame retardance, oil resistance, wear resistance and the like, are enhanced. However, the current color separation cable adopts double-layer co-extrusion equipment for extrusion, which brings bottlenecks to mass production of the cable. The double-layer co-extrusion requires a main machine and an auxiliary machine, the machine head adopts a special double-layer co-extrusion machine head, the equipment cost is high, the structure is complex, and the disassembly and the assembly of the die are inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a color separation cable extrusion die with low production cost.
In order to solve the technical problem, the die for extruding the color separation cable is tubular, and the outer surface of the die is provided with a material injection groove; the material injection groove is arranged at the edge of the mold along the axial direction of the mold, and a shunting groove is arranged on the outer surface of the mold and surrounds the outer surface of the mold; the two ends of the material injection groove are connected with the splitter box, and the material in the material injection groove flows into the splitter box through the two ends; along the axial direction of the die, on one side of the splitter box, between the splitter box and the end part of the die, the outer surface of the die is provided with a material distribution surface, the material distribution surface is lower than the outer surface of the die, the material distribution surface is provided with a plurality of material injection small holes, and the material injection small holes are distributed in a surrounding manner. The mould is tightly matched with the mould seat without a gap, namely the outer surface of the mould is tightly matched with the mould seat without a gap. At the moment, the material distributing surface is lower than the outer surface of the mold, so that the material in the shunting groove passes through the material distributing surface under the action of pressure and then enters the small material injecting holes.
The inner side of the die is provided with a boss at the position of the material injection small hole, the inner wall of the die is connected with a material gathering groove, a material gathering groove is formed between the boss and the inner wall of the die and is communicated with the material injection small hole, and materials are injected into the material gathering groove through the material injection small hole. The small injection holes are used for feeding materials firstly and uniformly, and the overall die is high in strength, discontinuous in grooving and low in strength. If the notch is formed on the whole circumference, the end face is directly and tightly combined with the die seat and is equal to be not opened, and the material flow cannot enter the inside.
Along the axial direction of the die, the height of the boss is lower than that of the end face of the die. After the material flow enters from the material injection small holes, the material flow of each material injection small hole is converged again to form a whole under the blocking of the lug boss. The boss is wholly less than the mould terminal surface, and the mould terminal surface closely cooperates with the mould seat, so the material stream can only flow out in the space between boss and the mould seat, gets into the die sleeve at last, follows the host computer material stream and gets into the mould jointly, forms the surperficial one deck secondary color (be the outside chromatography layer outside the insulating layer).
In order to control the thickness of the outer part color layer extruded outside the insulating layer, the height of the boss lower than the end face of the die can be controlled, for example, the boss is 0.5-1mm lower than the end face of the die.
In order to adjust the pressure on two sides of the material injection groove, a convex block is arranged in the material injection groove and is triangular.
In order to fixedly install the die, thread installation parts are connected to the end face of the die at the opposite ends of the injection small holes.
The invention is a general same-type die, selects proper die size according to different cable diameters, remains unchanged, realizes color separation requirements on cables with different outer diameters, and replaces a double-layer co-extrusion special machine head. The color separation thin layer is injected with color materials by the auxiliary machine, the materials enter the device through the strip injection port, the triangular bulge (bump) is arranged in the middle of the material injection groove, the fine adjustment of material flow pressure can be realized, and the defect of inconsistent material flow pressure caused by the processing and manufacturing precision can be effectively controlled. Through annotating the silo, divide into even twice stream by one stream material, the twice stream material is under the radian of runner (splitter box) and the cooperation of the degree of depth, and even whole circle of formation stream material, the stream material is impressed through annotating the material aperture and is gathered silo (circled), makes and form the rectification once more after gathering the silo through annotating the material aperture to impress for finally along with the common entering mould of host computer stream, form the effect of colour separation cladding on the dominant color, realize the production of colour separation cable.
Compared with the traditional double-layer co-extrusion process method, the die disclosed by the invention can be used for realizing the normal production of the color separation cable, and the production cost can be saved compared with a special machine head with a complex structure. Moreover, the extruder is suitable for a conventional extruder and has good universality.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of an embodiment of the present invention.
FIG. 2 is another schematic view of the present invention.
Fig. 3 is a schematic view of the installation and use of the present invention.
Detailed Description
As shown in fig. 1 and 2, the die for extruding the color separation cable is tubular, and the outer surface of the die is tightly matched with the die seat without a gap. A threaded mounting portion 3 is attached to one end face of the mold, specifically, at the opposite end of a shot hole 7 described below.
The outer surface of the mould is provided with a material injection groove 1, and the material directly enters the material injection groove 1. In order to adjust the pressure on two sides of the material injection groove 1, a lug 2 is arranged in the material injection groove 1, and the lug 2 (the cross section) is triangular.
Along the axial direction of the mould, the material injection groove is 1 side, and the outer surface of the mould is provided with a splitter box 4, and the splitter box 4 surrounds the outer surface of the mould. The two ends of the material injection groove 1 are connected with the splitter box 4, and materials in the material injection groove 1 flow into the splitter box 4 through the two ends.
Along the axial direction of the die, on one side of the splitter box 4, between the splitter box 4 and the end part of the die, the outer surface of the die is provided with a material distribution surface 5, the material distribution surface 5 is lower than the outer surface of the die, the material distribution surface 5 is provided with a plurality of material injection small holes 7, and the material injection small holes 7 are distributed in a surrounding manner. At this moment, because the material distributing surface 5 is lower than the outer surface of the mold, under the action of pressure, the material in the shunting groove 4 passes through the material distributing surface 5 and enters the material injecting small hole 7 under the blocking of the end surface.
The inner side of the die is provided with a boss 8 at the position of the material injection small hole 7, the inner wall of the die is connected with a material gathering groove 9, a material gathering groove 9 is formed between the boss 8 and the inner wall of the die, the material gathering groove 9 is communicated with the material injection small hole 7, and materials are injected into the material gathering groove 9 through the material injection small hole 7. Along the axial direction of the die, the height of the boss 8 is lower than that of the end face 6 of the die. After the material flow enters from the material injection small holes 7, the material flow of each material injection small hole 7 is converged again to form a whole under the blocking of the boss 8. The boss 8 is wholly less than mould terminal surface 6, and mould terminal surface 6 closely cooperates with the mould seat, wholly blocks that the material flows, so the material stream can only flow in the space between boss 8 and the mould seat (boss 8 is less than mould terminal surface 6 and forms promptly), gets into the die sleeve at last, follows the host computer material stream and gets into the cable mould jointly, forms the vice look of surperficial one deck (outside color separation layer outside the insulating layer promptly).
In order to control the thickness of the outer part color layer extruded outside the insulating layer, the height of the boss 8 lower than the end face 6 of the die can be controlled, for example, the boss 8 is 0.5-1mm lower than the end face of the die. The deeper (thicker) the thickness of the secondary color is required, the greater the difference in height between the boss 8 and the die end face 6.
In use, the mould base is connected to the head by the locking ring via the nut, as shown in figure 3. Which is provided with a material injection hole aligned with the lug 2 in the material injection groove 1. The die sleeve is arranged in the invention, is tightly matched with the die sleeve and is fixed by the locking nut, so that the die sleeve cannot move forwards under the action of pressure to cause the die sleeve to fall off. The invention is also connected with the die seat through a nut, and the clearance is in close fit. The plastic can only flow in the injection groove 1 and the splitter box 4 after entering from the injection hole. The die holder and the present invention are shown in figure 3 with consistent lengths to ensure that the end face of the present invention is able to mate with the end face of the head.
The above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims (4)
1. Color separation is mould for cable extrusion, its characterized in that: the mould is tubular, and the outer surface of the mould is provided with a material injection groove; the material injection groove is arranged at the edge of the mold along the axial direction of the mold, and a shunting groove is arranged on the outer surface of the mold and surrounds the outer surface of the mold; the two ends of the material injection groove are connected with the splitter box, and the material in the material injection groove flows into the splitter box through the two ends; the die is characterized in that a material distribution surface is arranged on the outer surface of the die between the splitter box and the end part of the die along the axial direction of the die and on one side of the splitter box, the material distribution surface is lower than the outer surface of the die, and the material distribution surface is provided with a plurality of material injection small holes which are distributed in a surrounding manner; the inner side of the die is provided with a boss at the position of the small material injection hole, the inner wall of the die is connected with a material gathering groove, a material gathering groove is formed between the boss and the inner wall of the die and is communicated with the small material injection hole, and materials are injected into the material gathering groove through the small material injection hole; along the axial direction of the die, the height of the boss is lower than that of the end face of the die.
2. The die for extruding a color separation cable according to claim 1, wherein: the boss is 0.5-1mm lower than the end face of the die.
3. The die for extruding a color separation cable according to claim 1, wherein: the material injection groove is internally provided with a convex block which is triangular.
4. The die for extruding a color separation cable according to claim 1, wherein: and the end face of the die is connected with a threaded mounting part at the opposite end of the injection small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620129.8A CN111816387A (en) | 2020-06-30 | 2020-06-30 | Color separation cable extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620129.8A CN111816387A (en) | 2020-06-30 | 2020-06-30 | Color separation cable extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111816387A true CN111816387A (en) | 2020-10-23 |
Family
ID=72856889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010620129.8A Pending CN111816387A (en) | 2020-06-30 | 2020-06-30 | Color separation cable extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111816387A (en) |
-
2020
- 2020-06-30 CN CN202010620129.8A patent/CN111816387A/en active Pending
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