A cable insulation sheath extrusion die disassembly device

Abstract

This utility model relates to the field of cable insulation sheath extrusion technology, and particularly to a cable insulation sheath extrusion die disassembly device. The technical solution is as follows: a screw head is fixedly connected to one end of a screw rod, the screw rod passes through the center of a fastening nut and is connected by a thread; the other end of the screw rod passes through the center of a brass top plate, and a retaining spring is installed on the outside of the brass top plate for fixation. The beneficial effects are: this utility model connects to the extruder head through a fastening nut, and through the rotation of the screw, it ejects the die and support frame fastened in the extruder head cavity. Its design is reasonable, operation is convenient, it improves the efficiency of die disassembly, thereby improving production efficiency and reducing die damage, resulting in certain economic benefits; in addition, the brass top plate is made of brass, which can effectively protect the end face of the die from damage.

Description

Technical Field

[0001] This utility model relates to the field of cable insulation sheath extrusion technology, and in particular to a cable insulation sheath extrusion die disassembly device. Background Technology

[0002] In the petroleum industry, submersible electric pump units require a large number of matching cables. In the manufacturing technology of these cables, especially in the plastic extrusion process of insulation and sheathing, the molds need to be changed frequently during production due to differences in cable specifications and insulation and sheathing materials. After the mold is installed in the extruder head cavity, the mold and support base become very tightly fitted with the die head cavity due to heating expansion and material extrusion pressure, making disassembly difficult. Usually, a round rod is used to hold the mold at one end and a hammer is used at the other end to detach the mold and support base from the die head. However, the disassembly process is slow and often results in damage to the mold, causing economic losses and affecting the operation schedule. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned deficiencies in the existing technology by providing a cable insulation sheath extrusion die disassembly device. This device is fixed inside the extruder head by a fastening nut, and the stroke is adjusted by rotating a bolt. The die and support base are slowly ejected from the die head cavity by a brass top plate, thus avoiding damage to the die and improving production efficiency.

[0004] The present invention provides a cable insulation sheath extrusion die disassembly device, the technical solution of which includes a screw head (1), a fastening nut (2), a screw (3), a brass top plate (4), and a retaining ring (5). The screw head (1) is fixedly connected to one end of the screw (3), and the screw (3) passes through the center of the fastening nut (2) and is connected by a thread. The other end of the screw (3) passes through the center of the brass top plate (4), and a retaining ring (5) is installed on the outside of the brass top plate (4) for fixation.

[0005] Preferably, the screw (3) is a high-strength screw with a coarse thread. The outer end of the screw (3) is provided with a thin rod (3.1) and a brass top plate (4) is installed through the thin rod (3.1).

[0006] Preferably, the brass top plate (4) is a cylinder with a central hole, the central hole of which is tightly fitted onto the thin rod (3.1). The thin rod (3.1) has a groove on its outside, and a retaining spring (5) is installed in the groove of the thin rod (3.1).

[0007] Preferably, the fastening nut (2) has an external thread (2.1) at one end and an outer end (2.2) at the other end, with the outer end (2.2) extending beyond the external thread (2.1). The fastening nut (2) has an internal thread in its central hole and is connected to the screw (3) through the internal thread.

[0008] Preferably, the screw head (1) described above adopts a hexagonal screw head structure.

[0009] The beneficial effects of this utility model are as follows: This utility model connects to the extruder head by fastening the nut and uses the rotation of the screw to eject the mold and support frame that are fastened in the mold cavity of the extruder head. Its design is reasonable and easy to operate, which improves the disassembly efficiency of the mold, thereby improving production efficiency and reducing mold damage, thus having certain economic benefits. In addition, the brass top plate is made of brass, which can effectively protect the end face of the mold from damage. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the present invention during mold disassembly; In the diagram above: 1. Screw head, 2. Fastening nut, 3. Screw, 4. Brass top plate, 5. Snap ring, 2.1. External thread, 2.2. Outer end of nut, 3.1. Detailed Implementation

[0011] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0012] Example 1, referring to Figure 1 and Figure 2 The present invention relates to a cable insulation sheath extrusion mold disassembly device, comprising a screw head 1, a fastening nut 2, a screw 3, a brass top plate 4, and a retaining spring 5. The screw head 1 is fixedly connected to one end of the screw 3, and the screw 3 passes through the center of the fastening nut 2 and is connected by threads. The other end of the screw 3 passes through the center of the brass top plate 4, and a retaining spring 5 is installed on the outside of the brass top plate 4 for fixation.

[0013] The screw 3 mentioned above is a high-strength screw with a coarse thread. The outer end of the screw 3 is provided with a thin rod 3.1, through which a brass top plate 4 is installed. The top plate is made of brass, which is relatively soft and can avoid damage to the surface of the mold 23.

[0014] The brass top plate 4 is a cylinder with a central hole, which is tightly fitted onto the thin rod 3.1. The thin rod 3.1 has a groove on its outside, and a retaining spring 5 is installed in the groove of the thin rod 3.1.

[0015] The fastening nut 2 mentioned above has an external thread 2.1 at one end and an outer end portion 2.2 at the other end, with the outer end portion 2.2 extending beyond the external thread 2.1. The fastening nut 2 has an internal thread in its central hole and is connected to the screw 3 through the internal thread.

[0016] The aforementioned screw head 1 adopts a hexagonal screw head structure.

[0017] In use, the fastening nut 2 is threadedly connected to the inner wall of the extruder head 21. A wrench is used to rotate the hexagonal screw head 1, driving the screw 3 to move forward, thereby causing the brass top plate 4 to press against the end face of the mold support 22 and the mold 23. Continuing to rotate the hexagonal screw head 1 causes the screw 3 and the brass top plate 4 to continuously apply force and travel to the other side, thereby causing the brass top plate 4 to detach from the mold cavity of the extruder head 21. This allows the mold 23 and the mold support 22 to be safely and reliably disassembled, improving the mold disassembly efficiency, thereby increasing production efficiency and reducing mold damage.

[0018] Example 2: A cable insulation sheath extrusion mold disassembly device mentioned in this utility model includes a screw head 1, a fastening nut 2, a screw 3, a brass top plate 4, and a retaining spring 5. The screw head 1 is fixedly connected to one end of the screw 3, and the screw 3 passes through the center of the fastening nut 2 and is connected by threads. The other end of the screw 3 passes through the center of the brass top plate 4, and a retaining spring 5 is installed on the outside of the brass top plate 4 for fixation.

[0019] The difference from Example 1 is: To increase the rotation speed and save the workers' physical strength, the screw head 1 can be connected to the output end of the motor and reducer to achieve electric drive.

[0020] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A device for disassembling a cable insulation sheath extrusion die, characterized in that: Includes a screw head (1), a fastening nut (2), a screw (3), a brass top plate (4), and a retaining ring (5). The screw head (1) is fixedly connected to one end of the screw (3). The screw (3) passes through the center of the fastening nut (2) and is connected by a thread. The other end of the screw (3) passes through the center of the brass top plate (4), and a retaining ring (5) is installed on the outside of the brass top plate (4) for fixation.

2. The cable insulation sheath extrusion die disassembly device according to claim 1, characterized in that: The screw (3) is a high-strength screw with a coarse thread. The outer end of the screw (3) is provided with a thin rod (3.1), through which a brass top plate (4) is installed.

3. The extrusion die disassembly device according to claim 2, characterized in that: The brass top plate (4) is a cylinder with a central hole, which is tightly fitted onto the thin rod (3.1). The thin rod (3.1) has a groove on its outside, and a retaining spring (5) is installed in the groove of the thin rod (3.1).

4. The extrusion die disassembly device according to claim 3, characterized in that: The fastening nut (2) has an external thread (2.1) at one end and an outer end (2.2) at the other end, with the outer end (2.2) extending beyond the external thread (2.1). The fastening nut (2) has an internal thread in its central hole and is connected to the screw (3) through the internal thread.

5. The extrusion die disassembly device according to claim 4, characterized in that: The screw head (1) adopts a hexagonal screw head structure.

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