Extrusion device for fireproof cable processing

Abstract

The utility model relates to the technical field of fireproof cable processing devices, in particular to an extrusion device for fireproof cable processing, which comprises a frame, an upper sliding table and a lower sliding table, two guide rods are slidably connected to two sides of the frame, the upper sliding table and the lower sliding table are slidably connected with the guide rods, the upper sliding table is in threaded connection with an upper screw rod, and the lower sliding table is in threaded connection with a lower screw rod. An upper motor and a lower motor are fixedly installed at one end of the machine frame, an output shaft of the upper motor is fixedly connected with the upper lead screw, an output shaft of the lower motor is fixedly connected with the lower lead screw, and a heating box is arranged at the end, away from the upper motor and the lower motor, of the machine frame. The cable is always kept in a constant stress state in the drawing process, so that continuous drawing of the cable is realized, the drawing distance of each time can be reduced, the length of the suspended part of the cable is reduced, and the influence of falling of the suspended part of the cable on cable production is reduced.

Description

Technical Field

[0001] This utility model relates to a fireproof cable processing device, and more particularly to an extrusion device for processing fireproof cables, belonging to the technical field of fireproof cable processing devices. Background Technology

[0002] In the fields of power transmission and related industries, protective cables play a crucial role. Common protective cables generally consist of two copper sheaths, an inner and an outer one. A mixture of powders is poured into the space between the inner and outer copper sheaths to enhance the cable's protective capabilities, insulation performance, and high-temperature resistance. Then, the cable structure is formed using an extrusion device through a stretching and extrusion process. During the extrusion process, as the length of the extruded cable continues to increase, the length of the suspended portion of the cable also increases accordingly. When there is too much cable in the suspended portion, the suspended portion of the cable will sag due to its own weight. This sag not only affects the extrusion molding quality of the cable, leading to problems such as deviations in the cable's external dimensions and uneven internal structure, but may also cause relative displacement between the layers inside the cable, damaging the original compact structure and reducing the cable's protective and electrical performance.

[0003] Therefore, it is urgent to improve the extrusion equipment used for processing fireproof cables in order to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an extrusion device for processing fireproof cables. By reciprocating the upper and lower slides, the cable is always driven by at least one slide at any given time, ensuring that the cable maintains a constant stress state during the pulling process. This enables continuous cable pulling, thereby reducing the distance of each pull and the length of the suspended portion of the cable, thus reducing the impact of the cable's descent on cable production.

[0005] To achieve the above objectives, the main technical solution adopted by this utility model includes: a frame, an upper slide, and a lower slide. Two guide rods are slidably connected to both sides of the frame. The upper slide and the lower slide are both slidably connected to the guide rods. An upper lead screw is threaded to the upper slide, and a lower lead screw is threaded to the lower slide. An upper motor and a lower motor are fixedly installed at one end of the frame. The output shaft of the upper motor is fixedly connected to the upper lead screw, and the output shaft of the lower motor is fixedly connected to the lower lead screw. A heating box is provided at the end of the frame away from the upper and lower motors. An extrusion die is fixedly installed on the side of the heating box near the upper slide and the lower slide. Clamping components are provided on the upper surface of both the upper slide and the lower slide.

[0006] Preferably, the clamping assembly includes a clamping plate, two hydraulic cylinders, and a mounting plate. The mounting plate is fixedly connected to the upper surface of the upper slide via a connecting rod. Both hydraulic cylinders are mounted on the lower surface of the mounting plate, and the clamping plate is fixedly connected to the other end of each hydraulic cylinder.

[0007] Preferably, both the upper slide and the lower slide have guide shafts on their upper surfaces, and the clamping plate has guide holes on its surface, with the guide shafts inserted into the guide holes.

[0008] Preferably, both the upper slide and the lower slide have lower clamping holes on their upper surfaces, and the clamping plate has upper clamping holes on its lower surface. The upper clamping holes and the lower clamping holes form a ring.

[0009] Preferably, ceramic tiles are fixedly connected to both the upper clamping hole and the lower clamping hole, and the ceramic tiles are heat-insulating ceramic sheets.

[0010] Preferably, the upper clamping holes are evenly and symmetrically distributed along the upper lead screw, and the two hydraulic cylinders are symmetrically arranged along the connecting rod.

[0011] Preferably, the lower clamping hole of the upper slide, the lower clamping hole of the lower slide, and the extrusion die are all on a straight line.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. By reciprocating between the upper and lower slides, the cable is always driven by at least one slide at any given time, ensuring that the cable maintains a constant stress state during the pulling process. This allows for continuous cable pulling, reducing the distance of each pull and the length of the suspended portion of the cable, thereby minimizing the impact of cable sagging on cable production. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 An exploded view of the sliding platform provided by this utility model;

[0018] Figure 4 This is an exploded view of the upper slide provided by the present invention.

[0019] Figure 5 This is a side view structural diagram of the present invention.

[0020] In the diagram, 1. Frame; 2. Upper slide; 3. Lower slide; 4. Guide rod; 5. Upper lead screw; 6. Lower lead screw; 7. Upper motor; 8. Lower motor; 9. Heating box; 10. Extrusion die; 11. Clamping assembly; 12. Connecting rod; 13. Guide shaft; 14. Guide hole; 15. Lower clamping hole; 16. Upper clamping hole; 17. Ceramic tile; 1101. Clamping plate; 1102. Hydraulic cylinder; 1103. Mounting plate. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] like Figures 1-5As shown, the extrusion device for processing fireproof cables provided in this embodiment includes a frame 1, an upper slide table 2, and a lower slide table 3. Two guide rods 4 are slidably connected to both sides of the frame 1. The upper slide table 2 and the lower slide table 3 are both slidably connected to the guide rods 4. An upper lead screw 5 is threadedly connected to the upper slide table 2, and a lower lead screw 6 is threadedly connected to the lower slide table 3. An upper motor 7 and a lower motor 8 are fixedly installed at one end of the frame 1. The output shaft of the upper motor 7 is fixedly connected to the upper lead screw 5, and the output shaft of the lower motor 8 is fixedly connected to the lower lead screw 6. The end of the frame 1 away from the upper motor 7 and the lower motor 8 is provided with... A heating box 9 is provided. An extrusion die 10 is fixedly installed on the side of the heating box 9 near the upper slide 2 and the lower slide 3. Clamping assemblies 11 are provided on the upper surfaces of both the upper slide 2 and the lower slide 3. Each clamping assembly 11 includes a clamping plate 1101, two hydraulic cylinders 1102, and a mounting plate 1103. The mounting plate 1103 is fixedly connected to the upper surface of the upper slide 2 via a connecting rod 12. The two hydraulic cylinders 1102 are mounted on the lower surface of the mounting plate 1103. The clamping plate 1101 is fixedly connected to the other end of each hydraulic cylinder 1102. All surfaces are equipped with guide shafts 13, and the surface of the clamping plate 1101 is provided with guide holes 14. The guide shafts 13 are inserted into the guide holes 14. The cable is extruded from the extrusion die 10. After being extruded from the extrusion die, the cable is clamped by the lower slide table 3 and the clamping plate 1101 that cooperates with the lower slide table 3. Then, the lower motor 8 is started, and the lower motor 8 drives the lower slide table 3 to move, pulling the cable. After the lower slide table 3 moves to one-third of the position, the upper slide table 2 quickly moves towards the lower slide table 3. Then, the clamping plate 1101 that cooperates with the upper slide table 2 takes over from the lower slide table 3 to pull the cable. After the lower slide table 3 slides to the middle position, the cable is released. Then the lower slide table 3 quickly returns to the side close to the extrusion die 10. After the upper slide table 2 slides to two-thirds of its length, the lower slide table 3 and the clamping plate 1101 that cooperates with the lower slide table 3 clamp the cable again. By the reciprocating movement of the upper slide table 2 and the lower slide table 3, the cable is driven by at least one slide table at the same time, so that the cable is under constant force during the pulling process, and the cable can be continuously pulled, reducing the pulling distance in one pulling process, thereby avoiding the cable length from being too long when it is pulled out in one pull.

[0023] The upper slide 2 and the lower slide 3 are provided with lower clamping holes 15 on their upper surfaces, and the clamping plate 1101 is provided with upper clamping holes 16 on its lower surface. The upper clamping holes 16 and the lower clamping holes 15 form a ring. Ceramic tiles 17 are fixedly connected in both the upper clamping holes 16 and the lower clamping holes 15. The ceramic tiles 17 are heat-insulating ceramic sheets. The upper clamping holes 16 are evenly and symmetrically distributed along the upper screw 5. The two hydraulic cylinders 1102 are symmetrically arranged along the connecting rod 12. The lower clamping holes 15 of the upper slide 2, the lower clamping holes 15 of the lower slide 3, and the extrusion die 10 are all on a straight line. The ceramic tiles 17 are heat-insulating ceramic sheets and can be replaced after they wear out. The upper clamping holes 16 are evenly and symmetrically distributed along the upper screw 5 to balance the force on both sides of the slide while pulling multiple cables at once.

[0024] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0026] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An extrusion apparatus for processing fire-resistant cables, comprising a frame (1), an upper slide (2), and a lower slide (3), characterized in that: Two guide rods (4) are slidably connected to both sides of the frame (1). The upper slide (2) and the lower slide (3) are slidably connected to the guide rods (4). The upper slide (2) is threaded with an upper lead screw (5), and the lower slide (3) is threaded with a lower lead screw (6). An upper motor (7) and a lower motor (8) are fixedly installed at one end of the frame (1). The output shaft of the upper motor (7) is fixedly connected to the upper lead screw (5), and the output shaft of the lower motor (8) is fixedly connected to the lower lead screw (6). A heating box (9) is provided at the end of the frame (1) away from the upper motor (7) and the lower motor (8). An extrusion mold (10) is fixedly installed on the side of the heating box (9) close to the upper slide (2) and the lower slide (3). A clamping assembly (11) is provided on the upper surface of both the upper slide (2) and the lower slide (3).

2. The extrusion device for processing fire-resistant cables according to claim 1, characterized in that: The clamping assembly (11) includes a clamping plate (1101), two hydraulic cylinders (1102) and a mounting plate (1103). The mounting plate (1103) is fixedly connected to the upper surface of the upper slide (2) via a connecting rod (12). The two hydraulic cylinders (1102) are both mounted on the lower surface of the mounting plate (1103). The clamping plate (1101) is fixedly connected to the other end of the hydraulic cylinders (1102).

3. The extrusion device for processing fire-resistant cables according to claim 2, characterized in that: The upper slide (2) and the lower slide (3) are both provided with guide shafts (13), and the surface of the clamping plate (1101) is provided with guide holes (14), and the guide shafts (13) are inserted into the guide holes (14).

4. The extrusion device for processing fire-resistant cables according to claim 2, characterized in that: The upper slide (2) and the lower slide (3) are provided with lower clamping holes (15) on their upper surfaces, and the clamping plate (1101) is provided with upper clamping holes (16) on its lower surface. The upper clamping holes (16) and the lower clamping holes (15) form an annular shape.

5. The extrusion device for processing fire-resistant cables according to claim 4, characterized in that: Both the upper clamping hole (16) and the lower clamping hole (15) are fixedly connected with ceramic tiles (17), which are heat-insulating ceramic sheets.

6. The extrusion apparatus for processing fire-resistant cables according to claim 4, characterized in that: The upper clamping holes (16) are evenly and symmetrically distributed along the upper lead screw (5), and the two hydraulic cylinders (1102) are symmetrically arranged along the connecting rod (12).

7. The extrusion apparatus for processing fire-resistant cables according to claim 6, characterized in that: The lower clamping hole (15) of the upper slide (2), the lower clamping hole (15) of the lower slide (3), and the extrusion die (10) are all on a straight line.

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