CN111516238A - Hot runner cable extrusion head - Google Patents
Hot runner cable extrusion head Download PDFInfo
- Publication number
- CN111516238A CN111516238A CN202010371123.1A CN202010371123A CN111516238A CN 111516238 A CN111516238 A CN 111516238A CN 202010371123 A CN202010371123 A CN 202010371123A CN 111516238 A CN111516238 A CN 111516238A
- Authority
- CN
- China
- Prior art keywords
- hot runner
- cable
- die sleeve
- inner die
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0075—Light guides, optical cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a hot runner cable extrusion head, which comprises a hot runner seat, an access head and a die sleeve, wherein a hot runner is arranged in the hot runner seat, one end of the hot runner extends to one end of the hot runner seat to form a feeding port, and the other end of the hot runner extends into the hot runner seat; the access head is connected to the feed inlet; the die sleeve is vertically inserted in the heat flow channel seat and penetrates through the heat flow channel seat from front to back; the die sleeve comprises an inner die sleeve body, the middle of the inner die sleeve body is provided with a conical sleeve body structure with an inner die mounting through hole, the surface of the inner die sleeve body is provided with a splitter box, the feed end of the splitter box is communicated with the discharge hole of a hot runner, and the discharge end of the splitter box extends to the small end of the inner die sleeve body along the conical surface. The invention realizes the extrusion coating of the cable, effectively improves the coating uniformity and improves the quality of the extruded cable.
Description
Technical Field
The invention relates to the field of cables, in particular to a hot runner drying-free self-drying extruder.
Background
The cable is a product which should be extensive, and the cable is a general name of articles such as optical cables, electric cables and the like; the cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable tool in daily life. The cable generally comprises an internal core wire and a protective layer coated outside, the protective layer is generally made of plastic, and common production processes comprise injection molding, extrusion and the like. The extrusion process is that granular or powdered plastic is added into a charging barrel, the plastic is made into a molten state through the rotation of a screw and the heating of the charging barrel, the screw is pushed to advance, the plastic is injected into a closed die at high pressure and high speed, a core wire of a cable passes through the die, the molten plastic is coated on the surface of the core wire, and the core wire is solidified into a finished product after pressure maintaining, water cooling and drying. Therefore, for the extrusion process of the cable, a special extrusion die needs to be designed to uniformly coat the molten plastic on the surface of the core wire and to complete the solidification of the plastic coating layer at the same time. .
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a hot runner cable extrusion head which can realize cable extrusion coating, effectively improve coating uniformity, can perform self-drying on rubber during extrusion and improve the quality of extruded cables.
The technical scheme adopted by the invention is as follows: a hot runner cable extrusion head comprises a hot runner base, an access head and a die sleeve, wherein a hot runner is arranged in the hot runner base, one end of the hot runner extends to one end of the hot runner base to form a feeding port, and the other end of the hot runner extends into the hot runner base; the access head is connected to the feed inlet; the die sleeve is vertically inserted in the heat flow channel seat and penetrates through the heat flow channel seat from front to back; the die sleeve comprises an inner die sleeve body, the middle of the inner die sleeve body is provided with a conical sleeve body structure with an inner die mounting through hole, the surface of the inner die sleeve body is provided with a splitter box, the feed end of the splitter box is communicated with the discharge hole of a hot runner, and the discharge end of the splitter box extends to the small end of the inner die sleeve body along the conical surface.
Preferably, a cable inner die is inserted into the inner die mounting through hole of the inner die sleeve, a cable hole is formed in the middle of the cable inner die, a cable outer die is arranged outside the cable inner die, and the cable outer die is mounted in the mounting hole; and the fluid material to be coated flows into a coating cavity between the cable outer die and the cable inner die along the conical surface of the inner die sleeve through the discharge end of the shunting groove and is coated outside the cable core.
Preferably, the front and rear side walls of the heat flow channel seat are respectively provided with a caulking groove, and a second heating wire is arranged in the caulking groove and used for heating the heat flow channel seat; the second heating wires respectively extend along the outer contour edge of the mounting hole.
Preferably, the heat flow channel seat is provided with at least two mounting holes, and the mounting holes penetrate through the heat flow channel seat from front to back; the inner mold sleeve is inserted in the mounting hole.
Preferably, the front section of the mounting hole is provided with a threaded hole, and a rotating cap is connected in the threaded hole to fix the cable outer die.
Preferably, the middle section of the mounting hole is an external mold mounting hole, and the rear section of the mounting hole is a horn-shaped section corresponding to the conical surface of the internal mold sleeve; the discharge port of the hot runner is arranged at the horn-shaped section of the mounting hole, the feed end of the distributing groove of the inner die sleeve is directly connected with the discharge port of the hot runner, and fluid materials in the hot runner directly enter the distributing groove.
Preferably, a clamping groove is arranged on the front side of the heat flow channel seat and extends along the outer contour of the mounting hole; a third heating wire and an extrusion temperature sensing line are arranged in the clamping groove.
Preferably, the hot runner base is also provided with a controller joint; the extrusion temperature sensing wire, the first heating wire and the second heating wire are respectively connected to the controller joint.
The invention has the beneficial effects that:
aiming at the defects and shortcomings in the prior art, the hot runner cable extrusion head is independently researched and developed, the cable extrusion coating is realized, the coating uniformity is effectively improved, the rubber material can be self-dried during extrusion, and the quality of the extruded cable is improved. The extrusion head of the hot runner cable extrusion head is originally designed with the extrusion head which mainly comprises a hot runner seat, a die sleeve and an access head flange; the flange is a connecting part of the machine head and a material guide charging barrel of the extruder; a runner is arranged in the hot runner seat, and liquid plastic enters the runner through the flange from the guide cylinder and is injected into the die sleeve for cable cladding; heating wires are arranged on the front surface and the rear surface of the heat flow channel seat, the heating wires are embedded in the flow channel plate to directly heat the flow channel, and a temperature sensing line is further installed in the heat flow channel seat to monitor the temperature of the flow channel plate; the die sleeve is an inner die sleeve, the outer surface of the inner die sleeve is conical, the surface of the inner die sleeve is provided with a shunting groove, and the feeding end in the outer die sleeve is conical corresponding to the inner die clamp; during production, the cable inner die is installed in the inner die sleeve, and the cable outer die sleeve is arranged on the wire wheel inner die; the die sleeve is correspondingly arranged in the mounting hole of the hot runner seat, liquid plastic is injected into the splitter box of the inner die sleeve from the glue inlet hole by the hot runner, is guided by the splitter box to enter between the cable outer die and the cable inner die, and is extruded and coated around the core layer of the cable through the outer die hole; the extruder head is connected into the control box through an electric control joint. According to the invention, the cable outer mold is connected to the hot runner base by using the rotating cap, molten plastic in the hot runner of the hot runner base directly enters the splitter box arranged on the outer wall of the inner mold sleeve, and is prevented from being guided into a space between the cable inner mold and the cable outer mold along the taper of the inner mold sleeve through the splitter box so as to be coated on the surface of a core wire; meanwhile, a heating wire is arranged on the rotating cap so as to heat the model eye. Through the structural design, the uniform distribution and the flow distribution of the molten plastic are effectively realized, and the uniformity of plastic coating is improved.
Drawings
Fig. 1 is a schematic view of a component-separated structure according to the present invention.
Fig. 2 is a second schematic view of the component detachment structure of the present invention.
Fig. 3 is a third schematic view of the component detachment structure of the present invention.
Fig. 4 is a schematic perspective view of the present invention.
Fig. 5 is a schematic perspective view of the second embodiment of the present invention.
FIG. 6 is a fourth illustration of the disassembled structure of the components of the present invention.
FIG. 7 is a fifth schematic view of the disassembled parts of the present invention.
Fig. 8 is a perspective view of the structure of the components of the present invention.
Fig. 9 is a second perspective view of the component structure of the present invention.
FIG. 10 is a sixth view showing a disassembled structure of the parts of the present invention.
Fig. 11 is a seventh schematic view of the component detachment structure of the present invention.
Fig. 12 is a schematic view of the cut-away structure of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 12, the technical solution adopted by the present invention is as follows: a hot runner cable extrusion head comprises a hot runner base 61, an access head 63 and a die sleeve, wherein a hot runner 62 is arranged in the hot runner base 61, one end of the hot runner 62 extends to one end of the hot runner base 61 to form a feeding port, and the other end of the hot runner 62 extends into the hot runner base 61; the connecting head 63 is connected with the feed inlet; the die sleeve is vertically inserted into the heat flow channel seat 61 and penetrates through the heat flow channel seat 61 from front to back; the die sleeve comprises an inner die sleeve 65, the inner die sleeve 65 is a conical sleeve body structure with an inner die mounting through hole 67 formed in the middle, a diversion trench 66 is formed in the surface of the inner die sleeve 65, the feeding end of the diversion trench 66 is communicated with the discharge hole of the hot runner 62, and the discharge end of the diversion trench 66 extends to the small end of the inner die sleeve 65 along the conical surface.
A cable inner die 68 is inserted into the inner die mounting through hole 67 of the inner die sleeve 65, a cable hole is formed in the middle of the cable inner die 68, a cable outer die 69 is arranged outside the cable inner die 68, and the cable outer die 69 is mounted in the mounting hole 64; the fluid material to be coated flows into the coating cavity between the outer cable mold and the inner cable mold along the tapered surface of the inner mold sleeve 65 through the discharge end of the diversion channel 66 and is coated outside the cable core.
The front side wall and the rear side wall of the heat flow channel seat 61 are respectively provided with a caulking groove 615, and a second heating wire 616 is arranged in the caulking groove 615 and used for heating the heat flow channel seat 61; the second heating wires 616 extend along the outer contour edges of the mounting holes 64, respectively.
At least two mounting holes 64 are formed in the heat flow channel base 61, and the mounting holes 64 penetrate through the heat flow channel base 61 from front to back; the inner die case 65 is inserted into the mounting hole 64.
The anterior segment of mounting hole 64 is equipped with the screw hole, and threaded hole is connected with rotatory cap 614 to the fixed cable external mold.
The middle section of the mounting hole 64 is an outer die mounting hole, and the rear section of the mounting hole 64 is a horn-shaped section corresponding to the conical surface of the inner die sleeve 65; the discharge port of the hot runner 62 is arranged at the trumpet-shaped section of the mounting hole 64, the feed end of the distributing groove 66 of the inner die sleeve 65 is directly connected with the discharge port of the hot runner 62, and the fluid material in the hot runner 62 directly enters the distributing groove 66.
A clamping groove 618 is arranged on the front side of the heat flow channel seat 61, and the clamping groove 618 extends along the outer contour of the mounting hole 64; the third heater 619 and the extruding temperature sensing wire 613 are disposed in the engaging groove 618.
The hot runner base 61 is also provided with a controller joint 617; the extrusion temperature sensing line 613, the first heater 612 and the second heater 616 are respectively connected to a controller connector 617.
Furthermore, the invention designs the hot runner cable extrusion head which can realize the extrusion coating of the cable, effectively improve the coating uniformity, can perform self-drying on the rubber material during the extrusion and improve the quality of the extruded cable. The extrusion head of the hot runner cable extrusion head is originally designed with the extrusion head which mainly comprises a hot runner seat, a die sleeve and an access head flange; the flange is a connecting part of the machine head and a material guide charging barrel of the extruder; a runner is arranged in the hot runner seat, and liquid plastic enters the runner through the flange from the guide cylinder and is injected into the die sleeve for cable cladding; heating wires are arranged on the front surface and the rear surface of the heat flow channel seat, the heating wires are embedded in the flow channel plate to directly heat the flow channel, and a temperature sensing line is further installed in the heat flow channel seat to monitor the temperature of the flow channel plate; the die sleeve is an inner die sleeve, the outer surface of the inner die sleeve is conical, the surface of the inner die sleeve is provided with a shunting groove, and the feeding end in the outer die sleeve is conical corresponding to the inner die clamp; during production, the cable inner die is installed in the inner die sleeve, and the cable outer die sleeve is arranged on the wire wheel inner die; the die sleeve is correspondingly arranged in the mounting hole of the hot runner seat, liquid plastic is injected into the splitter box of the inner die sleeve from the glue inlet hole by the hot runner, is guided by the splitter box to enter between the cable outer die and the cable inner die, and is extruded and coated around the core layer of the cable through the outer die hole; the extruder head is connected into the control box through an electric control joint. According to the invention, the cable outer mold is connected to the hot runner base by using the rotating cap, molten plastic in the hot runner of the hot runner base directly enters the splitter box arranged on the outer wall of the inner mold sleeve, and is prevented from being guided into a space between the cable inner mold and the cable outer mold along the taper of the inner mold sleeve through the splitter box so as to be coated on the surface of a core wire; meanwhile, a heating wire is arranged on the rotating cap so as to heat the model eye. Through the structural design, the uniform distribution and the flow distribution of the molten plastic are effectively realized, and the uniformity of plastic coating is improved.
In addition, the four-die-sleeve design is adopted, so that the extrusion coating of four cables can be realized simultaneously, and the extrusion coating capacity of the cables is effectively improved; meanwhile, the mold sleeves claimed by the invention are not limited to four sets, and any design of increasing or decreasing the number of the mold sleeves is within the protection scope of the invention.
The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.
Claims (8)
1. A hot runner cable extrusion head, comprising: the hot runner mold comprises a hot runner seat (61), an access head (63) and a mold sleeve, wherein a hot runner (62) is arranged in the hot runner seat (61), one end of the hot runner (62) extends to one end of the hot runner seat (61) to form a feeding port, and the other end of the hot runner (62) extends into the hot runner seat (61); the access head (63) is connected to the feed inlet; the die sleeve is vertically inserted into the heat flow channel seat (61) and penetrates through the heat flow channel seat (61) from front to back; above-mentioned die sleeve includes interior die sleeve (65), and above-mentioned interior die sleeve (65) are opened the taper sleeve body structure that has centre form installation through-hole (67) for the middle part, and the surface of interior die sleeve (65) is equipped with splitter box (66), and the feed end of splitter box (66) and the discharge gate intercommunication of hot runner (62), the discharge end of splitter box (66) extend to the tip department of interior die sleeve (65) along the tapered surface.
2. The hot runner cable extrusion head of claim 1, wherein: a cable inner die (68) is inserted into the inner die mounting through hole (67) of the inner die sleeve (65), a cable hole is formed in the middle of the cable inner die (68), and a cable outer die (69) is arranged outside the cable inner die (68); the cable outer die (69) is installed in the installation hole (64), and fluid materials to be coated flow into a coating cavity between the cable outer die and the cable inner die along the conical surface of the inner die sleeve (65) through the discharge end of the diversion channel (66) and are coated outside the cable core.
3. The hot runner cable extrusion head of claim 2, wherein: the front side wall and the rear side wall of the heat flow channel seat (61) are respectively provided with a caulking groove (615), and a second heating wire (616) is arranged in the caulking groove (615) and used for heating the heat flow channel seat (61); the second heating wires (616) respectively extend along the outer contour edge of the mounting hole (64).
4. The hot runner cable extrusion head of claim 3, wherein: the heat flow channel seat (61) is provided with at least two mounting holes (64), and the mounting holes (64) penetrate through the heat flow channel seat (61) from front to back; the inner die sleeve (65) is inserted into the mounting hole (64).
5. The hot runner cable extrusion head of claim 4, wherein: the anterior segment of mounting hole (64) be equipped with the screw hole, screw hole in-connection has rotatory cap (614) to fixed cable external mold.
6. The hot runner cable extrusion head of claim 5, wherein: the middle section of the mounting hole (64) is an outer die mounting hole, and the rear section of the mounting hole (64) is a horn-shaped section and corresponds to the conical surface of the inner die sleeve (65); the discharge hole of the hot runner (62) is arranged at the trumpet-shaped section of the mounting hole (64), the feed end of the distributing groove (66) of the inner die sleeve (65) is directly connected with the discharge hole of the hot runner (62), and fluid materials in the hot runner (62) directly enter the distributing groove (66).
7. The hot runner cable extrusion head of claim 6, wherein: a clamping groove (618) is formed in the front side of the heat flow channel seat (61), and the clamping groove (618) extends along the outer contour of the mounting hole (64); the clamping groove (618) is internally provided with a third heating wire (619) and an extrusion temperature sensing wire (613).
8. The hot runner cable extrusion head of claim 7, wherein: the heat flow channel seat (61) is also provided with a controller joint (617); the extrusion temperature sensing line (613), the first heating wire (612) and the second heating wire (616) are respectively connected to a controller connector (617).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371123.1A CN111516238A (en) | 2020-05-06 | 2020-05-06 | Hot runner cable extrusion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371123.1A CN111516238A (en) | 2020-05-06 | 2020-05-06 | Hot runner cable extrusion head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111516238A true CN111516238A (en) | 2020-08-11 |
Family
ID=71906612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010371123.1A Pending CN111516238A (en) | 2020-05-06 | 2020-05-06 | Hot runner cable extrusion head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111516238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474668A (en) * | 2022-03-03 | 2022-05-13 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0458139A2 (en) * | 1990-05-24 | 1991-11-27 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Die for the extrusion of a cable guidance device |
| JP2001260205A (en) * | 2000-03-22 | 2001-09-25 | Shiro Murakami | Die for extrusion processing and method for producing electric wire |
| CN203611444U (en) * | 2013-12-03 | 2014-05-28 | 扬州赛格线缆有限公司 | Extrusion moulding head for flat electric cable |
| US20160001484A1 (en) * | 2013-02-21 | 2016-01-07 | Heinrich Dohmann | Device for producing plastic pipes |
| CN206926226U (en) * | 2017-04-10 | 2018-01-26 | 讯达康通讯设备(惠州)有限公司 | A kind of shunting extruder head device |
-
2020
- 2020-05-06 CN CN202010371123.1A patent/CN111516238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0458139A2 (en) * | 1990-05-24 | 1991-11-27 | Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG | Die for the extrusion of a cable guidance device |
| JP2001260205A (en) * | 2000-03-22 | 2001-09-25 | Shiro Murakami | Die for extrusion processing and method for producing electric wire |
| US20160001484A1 (en) * | 2013-02-21 | 2016-01-07 | Heinrich Dohmann | Device for producing plastic pipes |
| CN203611444U (en) * | 2013-12-03 | 2014-05-28 | 扬州赛格线缆有限公司 | Extrusion moulding head for flat electric cable |
| CN206926226U (en) * | 2017-04-10 | 2018-01-26 | 讯达康通讯设备(惠州)有限公司 | A kind of shunting extruder head device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474668A (en) * | 2022-03-03 | 2022-05-13 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
| CN114474668B (en) * | 2022-03-03 | 2024-04-05 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20200811 |