A new cable fusion mold

Abstract

The utility model relates to a novel cable fusion joint die, including upper die and lower die, the upper die is detachably connected with lower die, the top of lower die designs as the taper surface, the bottom of upper die matches the taper surface design is concave surface, the plane of taper surface and concave surface contact is provided with semicircular groove, two the semicircular groove is folded and forms forming cavity, the both ends of forming cavity pass through line hole and communicate with outside, the upper die and lower die inner ring around semicircular groove are provided with heat insulating ring, the upper die is detachably installed with flow guide hopper, the flow channel of flow guide hopper penetrates heat insulating ring and communicates with forming cavity.In the upper die and lower die integration heat insulating ring, utilize heat insulating ring to insulate the most heat that fusion joint in forming cavity outward conduction when, make maintenance personnel after forming, can more conveniently detach the upper die and lower die, avoid scald.

Description

Technical Field

[0001] This utility model relates to the field of cable maintenance equipment technology, and in particular to a novel cable welding mold. Background Technology

[0002] During cable installation and use, when a cable is insufficient in length or broken, it is necessary to weld the two cables together to compensate for the insufficient length and facilitate repairs. Welding dies are required for cable joints; however, existing dies have some shortcomings. For example, when the heated welding material is formed in the die, heat is conducted to the die, causing its temperature to rise. To avoid burns to maintenance personnel, a long waiting period is required for the die to cool down before separation, reducing maintenance efficiency. Secondly, existing molten material is directly injected into the forming cavity through the upper die. After the upper and lower dies cool, the cooled molten material can clog the upper die's flow channel during separation, making cleaning extremely inconvenient and potentially affecting subsequent welding operations. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of cable splicing mold to address the above problems.

[0004] A novel cable splicing mold includes an upper mold and a lower mold, which are detachably connected. The top of the lower mold is designed as a conical surface, and the bottom of the upper mold is designed as a concave surface to match the conical surface. A semi-circular groove is provided on the plane where the conical surface and the concave surface contact each other. The two semi-circular grooves are closed to form a forming cavity. The two ends of the forming cavity are connected to the outside through wire holes. A heat insulation ring is provided around the semi-circular groove inside the upper mold and the lower mold. A flow guide funnel is detachably installed inside the upper mold. The flow channel of the flow guide funnel passes through the heat insulation ring and is connected to the forming cavity.

[0005] Preferably, the heat insulation ring is provided with a plurality of fan-shaped heat insulation pads, and the plurality of heat insulation pads are arranged side by side at intervals along the axial direction of the semicircular groove.

[0006] Preferably, the heat insulation pad is provided with a plurality of heat dissipation holes.

[0007] Preferably, the upper mold is further provided with an air passage, which is used to connect the heat insulation ring and the molding cavity.

[0008] The advantages of this invention are as follows: A heat insulation ring is integrated into the upper and lower molds, which isolates most of the heat conducted outward during welding within the molding cavity. This allows maintenance personnel to more easily disassemble the upper and lower molds after molding, preventing burns. A detachable flow funnel passes through the heat insulation ring, preventing molten material from leaking into the ring during pouring. Furthermore, the detachable flow funnel allows for easy replacement of the funnel after the molten material cools and becomes clogged, enabling normal welding operations to be completed. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a novel cable welding mold as one embodiment; Figure 2 This is a top view schematic diagram of a new type of cable welding mold; Figure 3 for Figure 2 Schematic diagram of the sectional view along the AA direction. Detailed Implementation

[0010] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0011] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0013] like Figures 1-3As shown, a novel cable splicing mold includes an upper mold 1 and a lower mold 2, which are detachably connected. The top of the lower mold 2 is designed as a conical surface, and the bottom of the upper mold 1 is designed as a concave surface to match the conical surface. A semi-circular groove 3 is provided on the plane where the conical surface and the concave surface contact each other. The two semi-circular grooves 3 close together to form a forming cavity. The two ends of the forming cavity are connected to the outside through wire holes 31. A heat insulation ring 4 is provided around the semi-circular grooves 3 inside the upper mold 1 and the lower mold 2. A flow guide funnel 5 is detachably installed inside the upper mold 1. The flow channel 51 of the flow guide funnel 5 passes through the heat insulation ring 4 and communicates with the forming cavity 3. Specifically, in this embodiment, when melting the cable joint, the two ends of the broken cable are inserted into the wire holes 31 respectively. At this time, the upper mold 1 and the lower mold 2 close. Since the diameter of the cable is slightly larger than the diameter of the wire hole 31, the pressure generated by the closing of the upper mold 1 and the lower mold 2 is sufficient to clamp the cable. It is known that the upper mold 1 and lower mold 2 can be locked together with bolts or connected using existing self-locking buckles. When the upper mold 1 and lower mold 2 are closed, the concave surface at the bottom of the upper mold 1 matches the conical surface at the top of the lower mold 2, resulting in better sealing performance and preventing loosening during subsequent locking of the upper mold 1 and lower mold 2. After closing, the upper mold 1 and lower mold 2 can only be misaligned in one direction, greatly avoiding misalignment during mold closing. When melting the cable joint, a high-frequency electric heater (not shown in the figure) is used to heat the molten material, and the melting temperature is controlled at 500~800 degrees Celsius. After melting treatment, the mechanical properties of the material are improved. During heating, a fluxing agent and a refining agent are added, and then the molten material is poured into the guide funnel 5 through a graphite crucible and injected into the molding cavity through the guide funnel 5 to fuse the cable joint into one piece. In this design, heat insulation rings 4 are integrated into the upper mold 1 and the lower mold 2. The heat insulation rings 4 isolate most of the heat conducted outward during the welding process in the molding cavity, making it easier for maintenance personnel to disassemble the upper mold 1 and the lower mold 2 after the molding is completed, thus avoiding burns. A detachable flow guide funnel 5 passes through the heat insulation ring 4 to prevent the molten material from leaking into the heat insulation ring 4 when it is poured in. The detachable flow guide funnel 5 also allows for easy replacement of the flow guide funnel 5 after the molten material cools and becomes clogged, thus completing the normal welding operation.

[0014] like Figures 1-3 As shown, the heat insulation ring 4 is provided with a plurality of fan-shaped heat insulation pads 41, which are arranged side by side at intervals along the axial direction of the semicircular groove 3. Specifically, the heat insulation pads 41 are made of metal, and the plurality of heat insulation pads 41 are built into the upper mold 1 and the lower mold 2, separating the ends of the upper mold 1 and the lower mold 2 from the forming cavity of the intermediate welding operation through an air layer. Only a portion of the heat insulation pads 41 can conduct heat, thereby reducing the heat conducted outward from the forming cavity during welding, facilitating timely disassembly of the upper mold 1 and the lower mold 2 by maintenance personnel, and improving maintenance efficiency.

[0015] like Figure 1As shown, the heat insulation pad 41 is provided with a number of heat dissipation holes 411. On the basis of ensuring the structural strength of the heat insulation pad 41 itself, the heat dissipation holes 411 are added to reduce the heat conduction area of ​​the heat insulation pad 41. At the same time, the airflow passes through the heat dissipation holes 411 and flows in the heat insulation ring 4 to carry away the heat on the heat insulation ring 4.

[0016] like Figure 3 As shown, the upper mold 1 is also provided with an air channel 11, which is used to connect the heat insulation ring 4 and the molding cavity. Through the air channel 11, it is convenient to discharge the air in the molding cavity during melting, so as to avoid defects such as bubbles forming at the cable splice.

[0017] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel cable splicing mold, characterized in that: The device includes an upper mold and a lower mold, which are detachably connected. The top of the lower mold is designed as a conical surface, and the bottom of the upper mold is designed as a concave surface to match the conical surface. A semi-circular groove is provided on the plane where the conical surface and the concave surface contact each other. The two semi-circular grooves are joined together to form a molding cavity. The two ends of the molding cavity are connected to the outside through wire holes. A heat insulation ring is provided around the semi-circular groove inside the upper mold and the lower mold. A flow guide funnel is detachably installed inside the upper mold. The flow channel of the flow guide funnel passes through the heat insulation ring and is connected to the molding cavity.

2. The novel cable welding mold as described in claim 1, characterized in that: The heat insulation ring is provided with a number of fan-shaped heat insulation pads, which are arranged side by side at intervals along the axial direction of the semicircular groove.

3. The novel cable welding mold as described in claim 2, characterized in that: The heat insulation pad is provided with several heat dissipation holes.

4. The novel cable welding mold as described in claim 1, characterized in that: The upper mold is also provided with an air passage, which is used to connect the heat insulation ring and the molding cavity.

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