Light irradiation-resistant radio frequency cable extrusion die

Abstract

The utility model discloses a light irradiation-resistant radio frequency cable extrusion die which comprises a beam passing part, the beam passing part comprises a clamping hole block and a capillary tube, the clamping hole block is installed at the wire inlet position of a machine head of a plastic extruding machine, one end of the capillary tube is fixed in a hole of the clamping hole block, and the other end of the capillary tube extends to the discharging end of the machine head of the plastic extruding machine; the extrusion molding part comprises a mold core and a mold sleeve which are arranged in the machine head of the plastic extruding machine, the right side of the mold core is arranged in the mold sleeve, the mold sleeve is arranged at the discharging end of the machine head of the plastic extruding machine, and the capillary tube penetrates through the mold core in the axial direction until extending to the outer part of the machine head of the plastic extruding machine. Through the bundle passing part and the extrusion molding part of the die, the yield during extrusion molding is greatly improved, and the phenomena of frequent disruptive discharge and skin breakage of the outer sheath in the sheath extrusion process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire and cable manufacturing, in particular to a light radiation-resistant high-frequency cable extrusion die. Background Art

[0002] The outer conductor of the lightweight radiation-resistant high-frequency cable adopts a silver-plated aramid wire braided structure with high temperature resistance, light weight and good radiation resistance. The cable has good tensile strength and bending performance in a wide temperature range, and can reduce the overall weight of the cable by about 30%. However, since each aramid wire is composed of hundreds of silver-plated aramid fibers, it is difficult to process. There will be different degrees of broken wires and burrs on the surface of the outer conductor before extrusion, and the outer sheath is difficult to extrude. After extrusion, when the cable is tested for the integrity of the sheath by a spark meter, frequent and multiple breakdown discharges will occur (about 2 to 3 breakdown points per meter), the yield rate is extremely low, and there is no continuous long-line output. Utility Model Content

[0003] The utility model provides a light radiation-resistant high-frequency cable extrusion die, the purpose of which is to solve all or part of the above-mentioned problems existing in the background technology. Through the design of the extrusion die, a set of dies is added to the head of the extruder, which greatly improves the yield rate during extrusion and reduces the frequent breakdown discharge and outer sheath skin breakage during the sheath extrusion process.

[0004] The technical solutions provided by this utility model are as follows:

[0005] A light radiation-resistant high-frequency cable extrusion die, comprising:

[0006] The beam passing part includes a hole block and a capillary tube. The hole block is installed at the line inlet of the extruder head. One end of the capillary tube is fixed in the hole of the hole block, and the other end extends to the discharge end of the extruder head.

[0007] An extrusion molding part, the extrusion molding part comprises a mold core and a mold sleeve arranged in the extruder head, the right side of the mold core is installed inside the mold sleeve, the mold sleeve is installed at the discharge end of the extruder head, and the capillary tube passes through the mold core along the axial direction until it extends to the outside of the extruder head;

[0008] During operation, a cable passes through the capillary tube, and the cable is a light radiation-resistant high-frequency cable.

[0009] Furthermore, the clamping block is coaxially arranged with the mold core and the mold sleeve.

[0010] Furthermore, an exhaust hole is provided in the clamping block, and the exhaust hole connects the interior of the extruder head with the air.

[0011] Furthermore, the clamping block is a horizontally placed T-shaped structure, the right end of the T-shaped structure is provided with an external thread, the left end surface of the T-shaped structure is provided with a mesh, and the exhaust hole is provided at the right end of the T-shaped structure.

[0012] Furthermore, a fastening screw is provided on the clamping hole block, and the fastening screw is used to fix the capillary.

[0013] Furthermore, the mold core includes a first main body and a first connecting portion, a first internal channel is axially arranged inside the mold core, the first connecting portion and at least 1 / 3 of the first main body are located inside the mold sleeve, and the capillary passes through the first internal channel.

[0014] Furthermore, the mold sleeve includes a second main body and a second connecting part, a trumpet-shaped second channel is arranged inside the mold sleeve, the second connecting part is installed at the discharge end of the extruder head, and the first connecting part is located inside the second connecting part.

[0015] Furthermore, there is a gap between the first body and the inner wall of the second channel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a light radiation-resistant high-frequency cable extrusion die, which greatly improves the yield rate during extrusion through the beam passing part and the extrusion molding part, and reduces the frequent breakdown discharge and outer sheath skin breakage during the sheath extrusion process;

[0018] 2. Through the provided light radiation-resistant HF cable extrusion die, the extruded finished product is optimized from 2 or 3 breakdown points per meter to 1 or even no breakdown point per cable section (about 30 to 50 meters), which greatly improves the extrusion yield and makes it possible to produce light radiation-resistant HF cables with longer lengths;

[0019] 3. The light radiation-resistant RF cable extrusion die can also solve the problems of unstable extrusion process and low yield rate of light radiation-resistant RF cable, and stabilize the production process;

[0020] 4. Reduced the waste of raw materials and improved the utilization rate of raw materials; increased the length of each section of lightweight radiation-resistant HF cable from several meters to tens of meters, thereby improving market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a lightweight radiation-resistant high-frequency cable extrusion die in an embodiment of the utility model.

[0022] The reference numerals are as follows:

[0023] 1-hole block, 101-fastening screw, 102-exhaust hole, 103-external thread, 104-net texture, 2-capillary, 3-core, 301-first body, 302-first connecting part, 303-first internal channel, 4-mold sleeve, 401-second body, 402-second connecting part, 403-second internal channel, 5-beam completion end, 6-gap, 100-extruder head. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the accompanying drawings is intended to represent only selected embodiments of the present application, and is not intended to limit the scope of protection claimed in the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0026] It should be understood that in the description of the embodiments of the present utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] See also Figure 1 The present application provides a lightweight radiation-resistant high-frequency cable extrusion die, comprising:

[0029] The beam-passing part includes a hole block 1 and a capillary 2. The hole block 1 is installed at the line inlet of the extruder head 100. One end of the capillary 2 is fixed in the hole of the hole block 1, and the other end extends to the discharge end of the extruder head 100.

[0030] The extrusion molding part includes a mold core 3 and a mold sleeve 4 arranged in the extruder head 100. The right side of the mold core 3 is installed inside the mold sleeve 4, and the mold sleeve 4 is installed at the discharge end of the extruder head 100. The capillary 2 passes through the mold core 3 axially until it extends to the outside of the extruder head 100.

[0031] The light radiation-resistant high-frequency cable extrusion die provided in this embodiment consists of two parts: a beam-passing part and an extrusion molding part. The semi-finished cable passes through the beam-passing part and is extruded at the extrusion molding part. The inner wall of the capillary 2 is required to be smooth, and its inner diameter is determined according to the outer diameter of the light radiation-resistant high-frequency cable to be extruded. The die is connected to the extruder head 100 through the external thread of the card hole block 1. The lateral displacement of the capillary 2 is fine-tuned by adjusting the capillary 2 and rotating the card hole block 1 to adjust the distance between the beam-passing completion end 5 and the extrusion cup molding point during extrusion to ensure the best molding conditions for the cable.

[0032] During operation, the cable passes through the capillary 2. The cable mentioned in the present application is a light radiation-resistant high-frequency cable.

[0033] Optionally, the clamping block 1 is coaxially arranged with the mold core 3 and the mold sleeve 4 .

[0034] Optionally, an exhaust hole 102 is provided in the clamping block 1, and the exhaust hole 102 connects the interior of the extruder head 100 with the air.

[0035] Optionally, the clamping block 1 is a horizontally placed T-shaped structure, the right end of the T-shaped structure is provided with an external thread 103, the left end surface of the T-shaped structure is provided with a mesh 104, and the exhaust hole 102 is provided at the right end of the T-shaped structure.

[0036] Optionally, a fastening screw 101 is provided on the hole block 1 , and the fastening screw 101 is used to fix the capillary 2 .

[0037] Optionally, the mold core 3 includes a first main body 301 and a first connecting portion 302 , a first internal channel 303 is axially arranged inside the mold core 3 , the first connecting portion 302 and at least 1 / 3 of the first main body 301 are located inside the mold sleeve 4 , and the capillary 2 passes through the first internal channel 303 .

[0038] Optionally, the mold sleeve 4 includes a second main body 401 and a second connecting part 402 , a trumpet-shaped second internal channel 403 is provided inside the mold sleeve 4 , the second connecting part 402 is installed at the discharge end of the extruder head 100 , and the first connecting part 302 is located inside the second connecting part 402 .

[0039] In this embodiment, the specific structure of the mold sleeve 4 and the mold core 3 is as follows: Figure 1 shown.

[0040] Optionally, there is a gap 6 between the first body 301 and the inner wall of the second inner channel 403 .

[0041] The operating method of the light radiation-resistant HF cable extrusion die provided in this embodiment comprises the following steps:

[0042] Step 1: Install the mold core 3 and the mold sleeve 4 at the discharge end of the extruder head 100.

[0043] Step 2, install the beam passing part at the inlet of the extruder head 100 through the external thread of the hole block 1, pass the capillary 2 through the end of the semi-finished cable to be extruded, and then install the capillary 2 into the hole block 1;

[0044] Step 3: After the extrusion starts, adjust the capillary 2 and the rotating hole block 1 to fine-tune the lateral displacement of the capillary 2 to ensure the best molding conditions for the cable, and fix the capillary 2 with the fastening screw 101.

[0045] Through the extrusion die of the light radiation-resistant RF cable, the extruded finished product is optimized from 2 or 3 breakdown points per meter to 1 or even no breakdown point per cable section (about 30 to 50 meters), which greatly improves the extrusion yield rate and makes it possible to make light radiation-resistant RF cables with longer lengths. The extrusion die of the light radiation-resistant RF cable also solves the problems of unstable extrusion process and low yield rate of light radiation-resistant RF cables, stabilizes the production process, reduces the waste of raw materials, and improves the utilization rate of raw materials; increases the length of each section of the light radiation-resistant RF cable from several meters to tens of meters, and improves market competitiveness.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A lightweight radiation-resistant RF cable extrusion die, characterized in that: include: The beam passing part includes a hole block and a capillary tube. The hole block is installed at the line inlet of the extruder head. One end of the capillary tube is fixed in the hole of the hole block, and the other end extends to the discharge end of the extruder head. An extrusion molding part, the extrusion molding part comprises a mold core and a mold sleeve arranged in the extruder head, the right side of the mold core is installed inside the mold sleeve, the mold sleeve is installed at the discharge end of the extruder head, and the capillary tube passes through the mold core along the axial direction until it extends to the outside of the extruder head; During operation, a cable passes through the capillary tube, and the cable is a light radiation-resistant high-frequency cable.

2. The light radiation-resistant HF cable extrusion die according to claim 1, characterized in that: The clamping hole block is coaxially arranged with the mold core and the mold sleeve.

3. The light radiation-resistant HF cable extrusion die according to claim 1, characterized in that: The clamping hole block is provided with an exhaust hole, and the exhaust hole connects the interior of the extruder head with the air.

4. The light radiation-resistant HF cable extrusion die according to claim 3, characterized in that: The clamping block is a horizontally placed T-shaped structure, the right end of the T-shaped structure is provided with an external thread, the left end surface of the T-shaped structure is provided with a mesh pattern, and the exhaust hole is provided at the right end of the T-shaped structure.

5. The light radiation-resistant HF cable extrusion die according to any one of claims 1 to 4, characterized in that: The clamping block is provided with a fastening screw, and the fastening screw is used to fix the capillary.

6. The light radiation-resistant HF cable extrusion die according to claim 5, characterized in that: The mold core includes a first main body and a first connecting portion. A first internal channel is axially arranged inside the mold core. The first connecting portion and at least 1 / 3 of the first main body are located inside the mold sleeve, and the capillary passes through the first internal channel.

7. The light radiation-resistant HF cable extrusion die according to claim 6, characterized in that: The mold sleeve includes a second main body and a second connecting portion. A trumpet-shaped second internal channel is provided inside the mold sleeve. The second connecting portion is installed at the discharge end of the extruder head, and the first connecting portion is located inside the second connecting portion.

8. The light radiation-resistant HF cable extrusion die according to claim 7, characterized in that: There is a gap between the first body and the inner wall of the second inner channel.

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