Anti-interference flame-retardant cable extrusion equipment

Abstract

The utility model relates to the technical field of extrusion equipment, in particular to anti-interference flame-retardant cable extrusion equipment, which comprises a heating shell, an extrusion shell, an extrusion pipe, a rear end cover and a support, the rear end cover is sleeved outside the extrusion shell, one side of the support is provided with a round hole, and the other side of the support is provided with an anti-interference layer. The inner wall of the round hole is fixedly connected with a plurality of positioning rods which are arranged at equal intervals; a rectangular through opening is formed in each positioning rod, a limiting strip with the cross section in an L shape is slidably connected into each rectangular through opening, one end of each limiting strip is connected with the extrusion shell in a clamped mode, a plurality of through holes are formed in the rear end cover, and a plurality of rectangular plates are fixedly connected to the inner wall of one side of the support. According to the utility model, the rear end cover can be conveniently disassembled, the rear end cover can be disassembled without a tool, the operation is relatively rapid and convenient, and the use of extrusion equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion equipment, in particular to an anti-interference flame-retardant cable extrusion equipment. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to extrusion equipment is also constantly improving. In the production process of anti-interference flame-retardant cables, in order to ensure the safe use of cables, it is necessary to use extrusion equipment to cover the cables with a wrapping layer with anti-interference flame-retardant properties.

[0003] The patent document with publication number "CN218315097U" discloses an extrusion equipment for the production of wires and cables, including an extrusion shell and a heating shell. The rear end of the extrusion shell is fixedly connected to a rear end cover, and the middle part of the surface of the rear end cover is fixedly connected to an extrusion limit die. An extrusion gap is formed between the extrusion limit die and the internal structure of the extrusion shell.

[0004] Although the above patent document solves the problem that different extrusion equipment needs to be replaced when extruding cable sheaths with different wall thicknesses, the following disadvantages still exist: the rear end cover is connected to the extrusion shell with multiple fastening bolts, and when removing the rear end cover, tools are needed to remove each fastening bolt, which is cumbersome and inconvenient, and is not conducive to the use of the extrusion equipment. Utility Model Content

[0005] The purpose of the utility model is to solve the following shortcomings in the prior art: the rear end cover is connected to the extrusion shell by a plurality of fastening bolts, and when removing the rear end cover, it is necessary to use tools to remove each fastening bolt, which is cumbersome and inconvenient to operate and is not conducive to the use of the extrusion equipment. An anti-interference flame-retardant cable extrusion equipment is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An anti-interference flame-retardant cable extrusion device comprises a heating shell, an extrusion shell, an extrusion tube, a rear end cover and a bracket, wherein the rear end cover is sleeved on the outside of the extrusion shell, a circular hole is opened on one side of the bracket, and a plurality of positioning rods arranged at equal distances are fixedly connected to the inner wall of the circular hole;

[0008] A rectangular opening is provided in each of the positioning rods, a limit strip with an L-shaped cross section is slidably connected in the rectangular opening, one end of the limit strip is clamped with the extrusion shell, a plurality of through holes are provided on the rear end cover, a plurality of rectangular plates are fixedly connected to the inner wall of one side of the bracket, each of the rectangular plates is connected to the corresponding limit strip by a pull rope, a rotating assembly is provided in the bracket, the rotating assembly includes a rotating ring threadedly mounted on the bracket, and a plurality of extrusion rods are fixedly connected to the rotating ring.

[0009] Preferably, a spring is fixedly connected to an inner wall of one side of each rectangular opening, and the spring is fixedly connected to the corresponding limiting strip.

[0010] Preferably, two rectangular pieces are fixedly connected to each of the limit bars, and the two rectangular pieces are respectively fitted with the end surfaces of both ends of the corresponding positioning rods.

[0011] Preferably, each positioning rod is fixedly connected to a rubber ring, and the surface of each rubber ring is in close contact with the surface of the rear end cover.

[0012] Preferably, a handle is fixedly connected to one side of the rotating ring, and the handle is provided with anti-slip grooves.

[0013] Preferably, a mounting frame is fixedly mounted on one side of the extrusion shell, and two mounting holes are provided on the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] As each extrusion rod rotates along with the rotating ring, it will detach from the inelastic pull rope, and one end of each limit strip will pass through the corresponding through hole and be engaged with the card slot on the outer surface of the extrusion shell, thereby preventing the rear end cover from detaching from the extrusion shell and facilitating the disassembly of the rear end cover. No tools are required to disassemble the rear end cover, and the operation is quick and convenient, which is conducive to the use of the extrusion equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of an anti-interference flame-retardant cable extrusion device proposed by the utility model;

[0017] Figure 2 This is a side structural schematic diagram of an anti-interference flame-retardant cable extrusion device proposed by the utility model;

[0018] Figure 3 It is a schematic diagram of the partial structure of the bracket and the rotating ring in the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure of the front side of the positioning rod and the limiting strip in the utility model.

[0020] In the figure: 1 heating shell, 2 bracket, 3 extrusion shell, 4 positioning rod, 5 rotating ring, 6 handle, 7 rectangular plate, 8 mounting frame, 9 rear end cover, 10 limit strip, 11 pull rope, 12 extrusion rod, 13 rectangular opening, 14 spring, 15 rubber ring, 16 rectangular sheet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0023] Reference Figure 1-Figure 4 , an anti-interference flame-retardant cable extrusion device, comprising a heating shell 1, an extrusion shell 3, an extrusion tube, a rear end cover 9 and a bracket 2, the heating shell 1 can heat raw materials containing anti-interference flame-retardant properties, when one end of the cable passes through the rear end cover 9 and the extrusion shell 3 and passes out of the extrusion tube, the outside of the cable can be wrapped with a wrapping layer with anti-interference flame-retardant properties, the rear end cover 9 is sleeved on the outside of the extrusion shell 3, a circular hole is opened on one side of the bracket 2, and a plurality of equidistantly arranged positioning rods 4 are fixedly connected to the inner wall of the circular hole, each positioning rod 4 is opened in a rectangular opening 13, and a limiting strip 10 with an L-shaped cross section is slidably connected in the rectangular opening 13, one end of the limiting strip 10 is clamped with the extrusion shell 3, a plurality of through holes are opened on the rear end cover 9, a plurality of rectangular plates 7 are fixedly connected to the inner wall of one side of the bracket 2, each rectangular plate 7 is connected to the corresponding limiting strip 10 through a pull rope 11, a rotating assembly is arranged in the bracket 2, and the rotating assembly includes a rotating ring 5 threadedly mounted on the bracket 2, and a plurality of extrusion rods 12 are fixedly connected to the rotating ring 5.

[0024] A spring 14 is fixedly connected to the inner wall of one side of each rectangular opening 13, and the spring 14 is fixedly connected to the corresponding limit strip 10. During the process of each extrusion rod 12 rotating with the rotating ring 5, it will gradually separate from the corresponding pull rope 11. Under the elastic force of the spring 14, the pull rope 11 will change from a bent state to a straight state, and each limit strip 10 slides inside the rectangular opening 13 at the same time. Two rectangular pieces 16 are fixedly connected to each limit strip 10, and the two rectangular pieces 16 are respectively fitted with the end faces of the corresponding positioning rod 4. The rectangular pieces 16 can prevent the limit strip 10 from moving along the positioning rod 4, thereby achieving the effect of limiting the moving trajectory of the limit strip 10.

[0025] A rubber ring 15 is fixedly connected to each positioning rod 4, and the surface of each rubber ring 15 is in close contact with the surface of the rear end cover 9. The rear end cover 9 is sleeved on the outside of the extrusion shell 3. At this time, the rear end cover 9 and the extrusion shell 3 are well sealed when connected, and the surface of each rubber ring 15 is in close contact with the outer surface of the rear end cover 9, which can prevent the rear end cover 9 from moving at will.

[0026] A handle 6 is fixedly connected to one side of the rotating ring 5, and the handle 6 is provided with anti-skid patterns. The handle 6 is used to conveniently control the movement of the rotating ring 5. The anti-skid patterns can increase the friction when holding the handle 6 to avoid slipping. A mounting bracket 8 is fixedly installed on one side of the extrusion shell 3. The mounting bracket 8 has two mounting holes. The mounting bracket 8 is used to pass the bolts through the mounting holes and threadedly connect them to the mounting position, so as to facilitate the firm installation of the extrusion shell 3.

[0027] In the utility model, when in use, the rear end cover 9 is sleeved on the outer side of the extrusion shell 3. At this time, the rear end cover 9 and the extrusion shell 3 are well sealed when connected, and the surface of each rubber ring 15 is tightly attached to the outer surface of the rear end cover 9. Then, the rotating ring 5 is rotated, and the rotating ring 5 is threadedly connected to the bracket 2 at the same time. The length of each extrusion rod 12 is sufficient. In the initial state, each extrusion rod 12 is tightly attached to the corresponding pull rope 11, and the pull rope 11 is bent. The spring 14 is deformed, and each extrusion rod 12 is gradually separated from the corresponding pull rope 11 during the process of rotating with the rotating ring 5. One end of the pull rope 11 is fixedly connected to the corresponding rectangular plate 7, and the other end is fixedly connected to the corresponding limit strip 10. Under the elastic force of the spring 14, the pull rope 11 will change from a bent state to a straight state, and each limit strip 10 will slide inside the rectangular opening 13 at the same time. During the movement of one end of each limit strip 10, it will pass through the corresponding through hole and be engaged with the card groove on the outer surface of the extrusion shell 3, thereby preventing the rear end cover 9 from detaching from the extrusion shell 3 and facilitating the disassembly of the rear end cover 9. No tools are required to disassemble the rear end cover 9, and the operation is quick and convenient, which is conducive to the use of the extrusion equipment.

[0028] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-interference flame-retardant cable extrusion device, comprising a heating housing (1), an extrusion housing (3), an extrusion tube, a rear end cover (9) and a bracket (2), characterized in that: The rear end cover (9) is sleeved on the outside of the extrusion shell (3); a circular hole is opened on one side of the bracket (2); and a plurality of positioning rods (4) arranged at equal distances are fixedly connected to the inner wall of the circular hole; A rectangular opening (13) is provided in each positioning rod (4), a limiting strip (10) having an L-shaped cross section is slidably connected in the rectangular opening (13), one end of the limiting strip (10) is clamped with the extrusion shell (3), a plurality of through holes are provided on the rear end cover (9), a plurality of rectangular plates (7) are fixedly connected to the inner wall of one side of the bracket (2), each of the rectangular plates (7) is connected to the corresponding limiting strip (10) via a pull rope (11), a rotating assembly is provided in the bracket (2), the rotating assembly comprises a rotating ring (5) threadedly mounted on the bracket (2), a plurality of extrusion rods (12) are fixedly connected to the rotating ring (5).

2. The anti-interference flame-retardant cable extrusion equipment according to claim 1 is characterized in that A spring (14) is fixedly connected to the inner wall of one side of each rectangular opening (13), and the spring (14) is fixedly connected to the corresponding limit strip (10).

3. The anti-interference flame-retardant cable extrusion equipment according to claim 1, characterized in that: Two rectangular pieces (16) are fixedly connected to each of the limit bars (10), and the two rectangular pieces (16) are respectively fitted with the end surfaces at both ends of the corresponding positioning rods (4).

4. The anti-interference flame-retardant cable extrusion equipment according to claim 1, characterized in that: A rubber ring (15) is fixedly connected to each positioning rod (4), and a surface of each rubber ring (15) is in close contact with a surface of the rear end cover (9).

5. The anti-interference flame-retardant cable extrusion equipment according to claim 1, characterized in that: A handle (6) is fixedly connected to one side of the rotating ring (5), and anti-slip grooves are provided on the handle (6).

6. The anti-interference flame-retardant cable extrusion equipment according to claim 1, characterized in that: A mounting frame (8) is fixedly mounted on one side of the extrusion housing (3), and two mounting holes are provided on the mounting frame (8).

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