Pressure-adjustable conical butterfly cable mold

Abstract

The utility model provides a kind of taper butterfly cable mould with adjustable pressure, including mould cover, mould core and a group of adjustment connecting components, the mould cover has the mould cover taper surface of recess, the mould core has the mould core taper surface of protrude, the mould core taper surface is nested in the mould cover taper surface;The mould cover taper surface bottom has mould cover export, optical fiber and reinforcing member pass the end portion of the mould core taper surface into the mould cover export;The mould cover and the mould core are connected by a group of the adjustment connecting components, and the space size between the mould cover taper surface and the mould core taper surface is changed by the adjustment connecting component.The taper butterfly cable mould with adjustable pressure can reduce the extrusion of sheath material to optical fiber, reduce the influence of sheath material pressure on optical fiber attenuation, and can adjust and adapt different specifications of sheath material, improve product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of butterfly cable production, and more precisely to a pressure-adjustable conical butterfly cable mold. Background Technology

[0002] Butterfly-shaped optical cables (or simply butterfly cables) are the main optical cables used by users to access the network via fiber optics. The cross-section of a butterfly cable is butterfly-shaped, with reinforcements on one or both sides, and a bending-resistant optical fiber embedded in the middle. The sheath material wraps around the reinforcements and the optical fiber. Butterfly cables have a small outer diameter, are lightweight, and are easily bent, making them suitable for wiring in confined spaces such as corners. They are easy to install and have low overall cost.

[0003] The production process of butterfly cables differs from that of general optical cables. The sheath material directly contacts the optical fiber, and the compression exerted by the sheath material on the fiber directly affects the quality of the butterfly cable. Furthermore, the pressure between the sheath material and the fiber is a microscopic state that current technology cannot observe or control. Therefore, reducing the compressive pressure of the sheath material on the fiber is crucial for improving the product quality and production yield of butterfly cables. Existing butterfly cable molds are generally divided into two types: conventional extrusion molds and tube-drawing molds. In conventional extrusion molds, the sheath material directly contacts the fiber after it enters the mold. Because the stability of the pressure exerted by the sheath material entering the mold through the die head cannot be guaranteed, this can lead to excessive fiber attenuation due to stress. Tube-drawing molds can avoid stress on the fiber within the mold, which helps improve attenuation. However, the fiber hole depth in the tube is relatively long, making it prone to clogging due to phosphorus powder accumulation, which is difficult to clean and exacerbates the attenuation of the butterfly cable. In addition, tube-drawing molds are difficult to insert fibers into, resulting in low production efficiency. Moreover, the thin wall thickness of the tube design can lead to localized holes in the tube due to continuous friction with the sheath material, potentially causing fiber breakage. Therefore, existing butterfly cable molds all present significant hidden dangers.

[0004] In summary, there is a need in this field for a pressure-adjustable conical butterfly cable mold to improve product quality and production efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a pressure-adjustable tapered butterfly cable mold, which is formed by an adjustable combination of a tapered mold core and a mold sleeve. By adjusting the residence time of the optical fiber in the mold and the pressure of the sheath material on the optical fiber, the product quality and production efficiency can be improved.

[0006] To achieve the above objectives, this utility model provides a pressure-adjustable tapered butterfly cable mold, including a mold sleeve, a mold core, and a set of adjustment connecting components. The mold sleeve has a concave mold sleeve tapered surface, and the mold core has a convex mold core tapered surface, with the mold core tapered surface nested within the mold sleeve tapered surface. The bottom of the mold sleeve tapered surface has a mold sleeve outlet, through which optical fibers and reinforcing members enter the mold sleeve outlet. The mold sleeve and the mold core are connected by the set of adjustment connecting components, which change the space between the mold sleeve tapered surface and the mold core tapered surface.

[0007] Preferably, the end of the conical surface of the mold core extends into the interior of the mold sleeve outlet.

[0008] Preferably, both the mold sleeve and the mold core are integrally formed structures.

[0009] Preferably, the mold sleeve has an annular mold sleeve fixing part surrounding the conical surface of the mold sleeve, and the mold core has a mold core fixing part surrounding the conical surface of the mold core. The mold sleeve fixing part and the mold core fixing part are coaxially arranged, and the mold sleeve fixing part and the mold core fixing part are connected together by a set of evenly distributed adjustment connecting components.

[0010] Preferably, the mold sleeve fixing part has two evenly distributed mold sleeve connecting through holes, and the mold core fixing part has two evenly distributed mold core connecting through holes, and the mold sleeve connecting through holes and the mold core connecting through holes are aligned.

[0011] Preferably, the adjusting connection assembly includes a pin and a washer assembly. The pin passes through the mold sleeve connection through hole and the mold core connection through hole, and the pin is threadedly connected to the mold core fixing part. The washer assembly is arranged around the pin, and the washer assembly is located between the mold sleeve fixing part and the mold core fixing part.

[0012] Preferably, the washer assembly includes at least two washers.

[0013] Preferably, the washer assembly includes a first washer and at least one second washer, and the thickness of the first washer is greater than the thickness of the second washer.

[0014] Preferably, the end of the core cone surface has an optical fiber hole.

[0015] Preferably, the gap between the inner wall of the optical fiber aperture and the acupuncture needle used to clean the optical fiber aperture is 0.01 mm.

[0016] Compared with the prior art, the advantages of the pressure-adjustable tapered butterfly cable mold disclosed in this utility model are as follows: the pressure-adjustable tapered butterfly cable mold can reduce the compression of the sheath material on the optical fiber, reduce the influence of sheath material pressure on optical fiber attenuation, and can be adjusted to adapt to different specifications of sheath material, thereby improving product quality and production efficiency; the pressure-adjustable tapered butterfly cable mold is integrally molded, making it more durable and reducing the cost of use; by limiting the aperture of the optical fiber hole, the pressure-adjustable tapered butterfly cable mold can use existing acupuncture needles to thoroughly clean the deposits on the optical fiber hole wall, ensuring product quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 The image shown is a cross-sectional view of a pressure-adjustable conical butterfly cable mold according to this application.

[0019] Figure 2 The image shown is a cross-sectional view of the core cone of a pressure-adjustable conical butterfly cable mold according to this application.

[0020] Figure 3 As shown Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1As shown, this application discloses a pressure-adjustable tapered butterfly cable mold, comprising a mold sleeve 1, a mold core 2, and a set of adjustment connection components 3. The mold sleeve 1 has a concave mold sleeve tapered surface 11, and the mold core 2 has a convex mold core tapered surface 21, with the mold core tapered surface 21 nested within the mold sleeve tapered surface 11. The bottom of the mold sleeve tapered surface 11 has a mold sleeve outlet 12, and the end of the mold core tapered surface 21 extends into the mold sleeve outlet 12. The optical fiber and reinforcing member enter the mold sleeve outlet 12 through the end of the mold core tapered surface 21. The mold sleeve 1 and the mold core 2 are connected by a set of adjustment connection components 3. By adjusting the connection components 3, the space between the mold sleeve tapered surface 11 and the mold core tapered surface 21 can be changed, thereby adjusting the residence time of the optical fiber in the mold and the pressure of the sheath material on the optical fiber. This reduces the squeezing of the optical fiber by the sheath material, reduces the impact of the sheath material pressure on the optical fiber attenuation, and can be adjusted to adapt to different specifications of sheath material, improving product quality and production efficiency. In addition, since the end of the core cone 21 extends into the mold sleeve outlet 12, the optical fiber only contacts the sheath material inside the mold sleeve outlet 12, making the sheath material pressure adjustment more precise, which helps to improve product quality and yield.

[0023] The preferred design features mold sleeve 1 and mold core 2 as a single-piece molding structure, which offers better wear resistance, longer service life, and lower replacement frequency, thus helping to reduce usage costs.

[0024] The mold sleeve 1 has an annular mold sleeve fixing part 10 surrounding the mold sleeve conical surface 11, and the mold core 2 has a mold core fixing part 20 surrounding the mold core conical surface 21. The mold sleeve fixing part 10 and the mold core fixing part 20 are coaxially arranged, and the mold sleeve fixing part 10 and the mold core fixing part 20 are connected together by a set of evenly distributed adjustment connecting components 3.

[0025] Furthermore, the mold sleeve fixing part 10 has two evenly distributed mold sleeve connecting through holes 101, and the mold core fixing part 20 has two evenly distributed mold core connecting through holes 201. The mold sleeve connecting through holes 101 and the mold core connecting through holes 201 are aligned and arranged, and the adjustment connecting component 3 is inserted into the mold sleeve connecting through holes 101 and the mold core connecting through holes 201.

[0026] The adjusting connection assembly 3 includes a pin 31 and a washer assembly 32. The pin 31 passes through the mold sleeve connection through hole 101 and the mold core connection through hole 201, and is threadedly connected to the mold core fixing part 20. The washer assembly 32 is arranged around the pin 31 and is located between the mold sleeve fixing part 10 and the mold core fixing part 20. By changing the thickness of the washer assembly 32, the space between the mold sleeve conical surface 11 and the mold core conical surface 21 can be changed.

[0027] The washer assembly 32 includes at least two washers, such as a first washer 321 and a second washer 322. Preferably, the thickness of the first washer 321 is greater than the thickness of the second washer 322. The first washer 321 is a base washer, and the second washer 322 is an adjustment washer. By increasing the number of second washers 322, the space between the die sleeve cone surface 11 and the die core cone surface 21 can be increased, thereby changing the sheath material pressure.

[0028] See Figure 2 The end of the core cone surface 21 has an optical fiber hole 221, and preferably, the two sides of the optical fiber hole 221 have reinforcing member holes 222 for inserting reinforcing members.

[0029] An acupuncture needle 3 is used to clean the fiber optic hole 221. In existing systems, a gap of 0.05-0.06 mm exists between the inner wall of the fiber optic hole and the acupuncture needle 3. The acupuncture needle cannot completely clean the deposits adhering to the hole wall, resulting in the fiber optic cable being able to pass through during production, but due to fiber movement, it comes into contact with impurities, leading to fiber damage and significant attenuation. In this application, the gap between the inner wall of the cleaning fiber optic hole 221 and the acupuncture needle 3 is set to 0.01 mm. (See [reference needed]). Figure 3 The diameter of the acupuncture needle 3 is sufficient to contact the center of the attached substance B, and by moving the acupuncture needle 3, the attached substance B can be completely cleaned.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure-adjustable conical butterfly cable mold, characterized in that, The device includes a mold sleeve, a mold core, and a set of adjustment and connection components. The mold sleeve has a concave mold sleeve conical surface, and the mold core has a convex mold core conical surface, with the mold core conical surface nested within the mold sleeve conical surface. The bottom of the mold sleeve conical surface has a mold sleeve outlet, through which optical fibers and reinforcing members enter the mold sleeve outlet. The mold sleeve and the mold core are connected by the set of adjustment and connection components, which change the space between the mold sleeve conical surface and the mold core conical surface.

2. The pressure-adjustable conical butterfly cable mold as described in claim 1, characterized in that, The end of the conical surface of the mold core extends into the interior of the mold sleeve outlet.

3. The pressure-adjustable conical butterfly cable mold as described in claim 1, characterized in that, Both the mold sleeve and the mold core are integrally formed structures.

4. The pressure-adjustable conical butterfly cable mold as described in claim 1, characterized in that, The mold sleeve has an annular mold sleeve fixing part surrounding the conical surface of the mold sleeve, and the mold core has a mold core fixing part surrounding the conical surface of the mold core. The mold sleeve fixing part and the mold core fixing part are coaxially arranged, and the mold sleeve fixing part and the mold core fixing part are connected together by a set of evenly distributed adjustment connecting components.

5. The pressure-adjustable conical butterfly cable mold as described in claim 4, characterized in that, The mold sleeve fixing part has two evenly distributed mold sleeve connecting through holes, and the mold core fixing part has two evenly distributed mold core connecting through holes. The mold sleeve connecting through holes and the mold core connecting through holes are aligned.

6. The pressure-adjustable conical butterfly cable mold as described in claim 5, characterized in that, The adjusting connection assembly includes a pin and a washer assembly. The pin passes through the mold sleeve connection through hole and the mold core connection through hole, and the pin is threadedly connected to the mold core fixing part. The washer assembly is arranged around the pin, and the washer assembly is located between the mold sleeve fixing part and the mold core fixing part.

7. The pressure-adjustable conical butterfly cable mold as described in claim 6, characterized in that, The washer assembly includes at least two washers.

8. The pressure-adjustable conical butterfly cable mold as described in claim 7, characterized in that, The gasket assembly includes a first gasket and at least one second gasket, wherein the thickness of the first gasket is greater than the thickness of the second gasket.

9. The pressure-adjustable conical butterfly cable mold as described in claim 1, characterized in that, The end of the core cone has an optical fiber hole.

10. The pressure-adjustable conical butterfly cable mold as described in claim 9, characterized in that, The gap between the inner wall of the optical fiber aperture and the acupuncture needle used to clean the optical fiber aperture is 0.01 mm.

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