High-frequency high-speed transmission cable double-loose core structure mold device

Abstract

The utility model relates to a kind of high-frequency high-speed transmission cable double-love core structure mold device, solve the problem of low transmission rate of transmission cable produced by existing ordinary iron fluorine dragon extruder.It includes: mold core, for connecting with machine;Base, connect with mold core;The base is equipped with first connecting hole;Love core mold, the love core mold includes inner mold and the outer mold matched with inner mold;The inner mold includes air hole and the forming hole for passing conductor or core wire;Thread rod, the thread rod includes the threading hole for conductor or core wire to pass;The threading hole is communicated with forming hole;Air extraction pipe, set on base, the air extraction pipe is connected by first connecting hole, threading hole and forming hole, for forming hole to extract air.The utility model also has the advantages of simple structure, easy assembly, reliable operation, long service life and the like.

Description

Technical Field

[0001] This utility model relates to a mold device for a dual-core structure of high-frequency and high-speed transmission cables. Background Technology

[0002] Rapid technological advancements have fueled the explosive growth of the digital economy. Data shows that global data center traffic is surging at a rate of 25% annually, prompting numerous well-known technology companies to increase their investment in data center server construction. Currently, in short-distance signal transmission solutions for servers, DAC copper cables (Direct Attach Cables, also known as direct-connect copper cables or high-speed cables) typically include a conductor layer, insulation layer, foam layer, shielding layer, and outer jacket. DAC copper cables, with their low loss and low cost, have become the preferred cable connection solution for server manufacturers. However, as transmission speeds increase, copper cable speeds have reached their limits, and further increases have hit a bottleneck. Currently, DAC copper cable manufacturers are prioritizing Teflon foam materials to improve performance. Teflon foaming requires a core production piece of equipment—the Rosenthal Teflon foaming extruder—to produce the core wire. Higher foaming levels allow for smaller core wires, saving material and improving transmission performance. While Rosenthal's physical foaming machine boasts advantages such as advanced technology and superior performance, it also suffers from drawbacks such as tight supply, high scrap rate, high machine purchase cost (over 15 million RMB per machine), and long delivery cycle of over one year. Utility Model Content

[0003] To address the problem of low transmission rate in transmission cables produced by existing ordinary Teflon extrusion machines, this invention provides a high-frequency, high-speed transmission cable dual-core structure mold device.

[0004] The technical solution of this utility model is: a mold device for a dual-core structure of high-frequency and high-speed transmission cables, comprising: Mold core, used for connection to the machine; A base is connected to the mold core; the base is provided with a first connecting hole. A lotus root core mold, comprising an inner mold and an outer mold that mates with the inner mold; the inner mold includes ventilation holes and forming holes for passing conductors or core wires. A wire guide bar, wherein the wire guide bar includes a wire guide hole for a conductor or core wire to pass through; the wire guide hole is connected to a forming hole; An air extraction pipe is provided on the base. The air extraction pipe is connected to the forming hole through a first connecting hole and a wire threading hole, and is used to extract air from the forming hole.

[0005] As a further improvement of this utility model, the forming hole is located in the middle of the inner mold, there are two forming holes, and the threading hole is set corresponding to the forming hole.

[0006] As a further improvement of this utility model, there are multiple vent holes, which are evenly distributed around the forming hole.

[0007] As a further improvement of this utility model, there are 6-20 vent holes, and the different vent holes are arranged in a circular or elliptical shape in combination.

[0008] As a further improvement of this utility model, it also includes an air blowing tube for blowing air into the vent; the base is provided with a second connecting hole, and the air blowing tube is connected to the vent through the second connecting hole.

[0009] As a further improvement of this utility model, it also includes a connecting pipe. The base is connected to the mold core through the connecting pipe. The mold core is located on the outside of the inner mold and cooperates with the connecting pipe to form a first cavity.

[0010] As a further improvement of this utility model, it also includes a mold core insert, which has a connecting hole for connecting the threading hole and the forming hole. A connecting gap is provided between the outer wall of the mold core insert and the inner wall of the inner mold. The first cavity is connected to the vent hole through the connecting gap.

[0011] As a further improvement of this utility model, it also includes a rod seat, which is disposed on the base. The rod seat is coaxially arranged with the threading rod and is disposed at one end of the threading rod to limit the threading rod.

[0012] As a further improvement of this utility model, the rod seat is provided with a guide opening, which is set with one end open and the other end closed, and the guide opening is connected to the wire hole.

[0013] As a further improvement of this utility model, the base is provided with a mounting post, which is inserted into the limiting rod seat that abuts against the rod seat along the direction of the vertical rod seat axis.

[0014] The beneficial effects of this utility model are that by setting a core mold and providing forming holes on the inner mold, it is easy to thread the wire. Air can be evacuated from the forming holes via an air extraction pipe, facilitating the production of high-speed cables. This reduces dependence on foreign production equipment, lowers costs and production difficulty, and produces products with superior performance compared to wires produced by foreign equipment, thus solving current challenges and pain points. This utility model also has advantages such as simple structure, convenient assembly, reliable operation, and long service life. Attached Figure Description

[0015] Appendix Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0016] Appendix Figure 2 For the appendix Figure 1 A magnified structural diagram at point I in the middle.

[0017] Appendix Figure 3 This is a schematic diagram of the structure of the end of the inner mold in an embodiment of the present invention.

[0018] Appendix Figure 4 This is a schematic diagram of the structure of the outer mold end in an embodiment of this utility model.

[0019] In the diagram, 1 is the mold core; 11 is the first cavity; 2 is the base; 21 is the first connecting hole; 22 is the second connecting hole; 23 is the mounting post; 3 is the lotus root core mold; 31 is the inner mold; 311 is the vent hole; 312 is the forming hole; 32 is the outer mold; 4 is the threading rod; 41 is the threading hole; 5 is the air extraction pipe; 6 is the air blowing pipe; 7 is the connecting pipe; 8 is the mold core insert; 81 is the connecting hole; 82 is the connecting gap; 9 is the rod seat; 91 is the guide port. Detailed Implementation

[0020] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-4 As shown, a high-frequency, high-speed transmission cable dual-core structure mold device includes: Mold core 1, used for connection to the machine; Base 2 is connected to mold core 1; the base 2 is provided with a first connecting hole 21; The lotus root core mold 3 includes an inner mold 31 and an outer mold 32 that cooperates with the inner mold 31; the inner mold 31 includes a vent hole 311 and a forming hole 312 for passing a conductor or core wire. The wire guide 4 includes a wire guide hole 41 for the conductor or core wire to pass through; the wire guide hole 41 is connected to the forming hole 312. An air extraction pipe 5, mounted on the base 2, is connected to the forming hole 312 via a first connecting hole 21 and a threading hole 41, and is used to extract air from the forming hole 312. The beneficial effects of this invention are that by setting a core mold and providing forming holes on the inner mold, threading is facilitated; the air extraction pipe allows for air extraction from the forming hole, facilitating the production of high-speed cables, reducing dependence on foreign production equipment, lowering costs and production difficulty, and producing products with superior performance compared to cables produced by foreign equipment, thus solving current challenges and pain points. This invention also has advantages such as simple structure, convenient assembly, reliable operation, and long service life.

[0021] The forming hole 312 is located in the middle of the inner mold 31. There are two forming holes 312, and the wire through hole 41 is provided corresponding to the forming hole 312. This utility model provides two forming holes, which can allow two core wires to pass through, thereby processing a dual-core cable and improving transmission efficiency. The vacuum pipe can evacuate the forming hole, which facilitates the bonding of the insulation layer and conductor during production, reduces the surface area of ​​the transmission cable, and avoids gaps between the insulation layer and the conductor.

[0022] There are multiple vent holes 311, which are evenly distributed around the forming holes 312. Specifically, there are 6-20 vent holes 311, and the different vent holes 311 are arranged in a circular or elliptical pattern. This utility model also includes an air blowing pipe 6 for blowing air into the vent holes 311; the base 2 is provided with a second connecting hole 22, and the air blowing pipe 6 is connected to the vent holes 311 through the second connecting hole 22. The inner mold of this utility model has multiple cylindrical (6-20 pillars) or fan-shaped pillars (6-20 pillars) evenly distributed around the two forming holes. Ventilation holes are formed by longitudinally drilling along the center of the cylindrical or fan-shaped pillars for gas passage. The cylindrical or fan-shaped pillars are conical to prevent deformation during use. Holes are drilled at the edges of the inner and outer molds to fix the outer mold and prevent relative movement between the inner and outer molds during production, which would affect eccentricity. The structure at the vent holes can ensure the roundness of the cable after product manufacturing and improve transmission efficiency.

[0023] This utility model also includes a connecting pipe 7. The base 2 is connected to the mold core 1 through the connecting pipe 7. The mold core 1 is located on the outside of the inner mold 31 and cooperates with the connecting pipe 7 to form a first cavity 11. The connecting pipe can be made of high-temperature resistant nickel alloy, with the main body in the shape of a tube. One end is connected to the base, and the other end is connected to the vent hole to ensure that the internal and external air pressure difference of the hole is consistent and that the hole shape is uniform.

[0024] This utility model also includes a mold core insert 8, which has a connecting hole 81 for connecting the threading hole 41 and the forming hole 312. A connecting gap 82 is provided between the outer wall of the mold core insert 8 and the inner wall of the inner mold 31. The first cavity is connected to the vent hole 311 through the connecting gap 82. This structure ensures stable air extraction by the suction pipe and reliable air passage by the blowing pipe.

[0025] This utility model also includes a rod holder 9, disposed on the base 2. The rod holder 9 is coaxially arranged with the threading rod 4 and is located at one end of the threading rod 4 to limit its movement. Specifically, the rod holder 9 has a guide opening 91, which is open at one end and narrowed at the other, and is connected to the threading hole 41. More specifically, the base 2 has a mounting post 23, which is inserted into the rod holder 9 along the direction perpendicular to its axis to limit its movement. This structure facilitates the installation of the threading rod, is simple in structure, and the mounting post facilitates the installation of the rod holder, making assembly convenient.

[0026] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. A mold device for a dual-core structure of high-frequency, high-speed transmission cables, characterized in that: include: Mold core (1), used for connection with the machine; The base (2) is connected to the mold core (1); the base (2) is provided with a first connecting hole (21); The lotus root core mold (3) includes an inner mold (31) and an outer mold (32) that cooperates with the inner mold (31); the inner mold (31) includes a vent hole (311) and a forming hole (312) for passing a conductor or core wire. The wire guide (4) includes a wire guide hole (41) for the conductor or core wire to pass through; the wire guide hole (41) is connected to the forming hole (312); An air extraction pipe (5) is provided on the base (2). The air extraction pipe (5) is connected to the forming hole (312) through the first connecting hole (21) and the wire hole (41) for extracting air from the forming hole (312).

2. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... The forming hole (312) is located in the middle of the inner mold (31). There are two forming holes (312), and the threading hole (41) is provided corresponding to the forming hole (312).

3. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... There are multiple vent holes (311), and the multiple vent holes (311) are evenly distributed around the forming hole (312).

4. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... There are 6 to 20 vent holes (311), and different vent holes (311) are arranged in a circular or elliptical shape in combination.

5. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... It also includes an air blowing pipe (6) for blowing air into the vent (311); the base (2) is provided with a second connecting hole (22), and the air blowing pipe (6) is connected to the vent (311) through the second connecting hole (22).

6. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... It also includes a connecting pipe (7), the base (2) is connected to the mold core (1) through the connecting pipe (7), the mold core (1) is located on the outside of the inner mold (31) and cooperates with the connecting pipe (7) to form a first cavity (11).

7. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 6, characterized in that... It also includes a mold core insert (8), which has a connecting hole (81) for connecting the thread hole (41) and the forming hole (312). A connecting gap (82) is provided between the outer wall of the mold core insert (8) and the inner wall of the inner mold (31). The first cavity () is connected to the vent hole (311) through the connecting gap (82).

8. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... It also includes a rod seat (9), which is located on the base (2). The rod seat (9) is coaxially arranged with the threading rod (4) and located at one end of the threading rod (4) to limit the threading rod (4).

9. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 8, characterized in that... The rod base (9) is provided with a guide opening (91), which is open at one end and closed at the other end. The guide opening (91) is connected to the wire hole (41).

10. The high-frequency high-speed transmission cable dual-core structure mold device according to claim 1, characterized in that... The base (2) is provided with a mounting post (23), which is inserted into the rod seat (9) along the axis of the vertical rod seat (9) and abuts against the rod seat (9).

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