Composite flame-retardant insulated cable sheath processing die

Abstract

The utility model relates to the technical field of cable processing, in particular to a composite flame-retardant insulated cable sheath processing die, which comprises a die body, a cavity, a feed pipe and a replacement mechanism, the cavity is arranged inside the die body, the feed pipe is fixedly connected with the surface of the die body, and the replacement mechanism is arranged on the surface of the die body; the replacement mechanism comprises a combination assembly, the combination assembly comprises a guide pipe and an extrusion pipe, and the guide pipe and the extrusion pipe are arranged at the two ends of the mold body respectively; the replacing mechanism further comprises two assembling and disassembling assemblies, and the assembling and disassembling assemblies are arranged at the two ends of the mold body correspondingly. According to the utility model, by arranging the replacement mechanism and adopting a modular assembly mode, the guide pipes and the extrusion pipes with different specifications can be conveniently replaced according to the size requirements of extruding different sheath layers, different mold bodies are not needed, and when any part of the mold body, the guide pipes and the extrusion pipes is damaged, the replacement can be performed in a targeted manner; and the whole set of mold body does not need to be replaced, so that the applicability of the equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of cable processing technology, and in particular to a processing mold for composite flame-retardant insulated cable sheaths. Background Technology

[0002] Cable sheath is the outermost protective structure wrapped around the cable. It is formed by extrusion. When processing composite flame-retardant insulated cable sheaths, in order to make them have flame-retardant, insulating and protective effects, the extrusion process usually includes multiple extrusion dies to extrude the inner insulation layer, filling layer and outer sheath layer respectively.

[0003] Existing technologies, such as Chinese Patent No. CN216658859U, disclose a multifunctional extrusion die for cable processing, including a first die body, a second die body, and a third die body. The first die body has a first melting chamber, the second die body has a second melting chamber, and the third die body has a third melting chamber. A first extrusion tube is located at one end of the first die body, a second extrusion tube at one end of the second die body, and a third extrusion tube at one end of the third die body. This invention, through the continuous cooperation of the first, second, and third die bodies, can complete the processing of the cable insulation layer, filling layer, and outer sheath layer in one continuous operation, improving processing efficiency. After the inner layer processing is completed, a cooling buffer time can be reserved for the outer layer processing, thereby improving the production quality of the finished cable. However, when processing different sheath layers, this invention requires the use of multiple dies of different specifications according to the size of the sheath layer, and when the die is worn out, it can only be replaced as a whole, which is inconvenient.

[0004] To address the issue that existing cable sheath processing dies cannot adapt to processing sheath layers of different sizes, most existing dies are only suitable for extruding sheath layers of specific sizes. However, when producing composite flame-retardant insulated cable sheaths, it is often necessary to extrude multiple sheath layers of different sizes separately, requiring the use of multiple dies of different specifications, which is inconvenient. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing composite flame-retardant insulated cable sheath processing molds cannot adapt to the processing of sheath layers of different sizes, and to propose a composite flame-retardant insulated cable sheath processing mold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a composite flame-retardant insulated cable sheath processing mold, comprising a mold body, a cavity, a feed pipe and a replacement mechanism, wherein the cavity is opened inside the mold body, the feed pipe is fixedly connected to the surface of the mold body, and the replacement mechanism is disposed on the surface of the mold body;

[0007] The replacement mechanism includes a combination assembly, which includes a guide tube and an extrusion tube, respectively disposed at both ends of the mold body;

[0008] The replacement mechanism also includes loading and unloading components. There are two sets of loading and unloading components, which are respectively set at both ends of the mold body. Each loading and unloading component includes a gear. The gear is rotatably connected to the inner wall of the mold body. A toothed plate is meshed with the surface of the gear. A guide rod is fixedly connected to the inner wall of the mold body. The toothed plate is slidably connected to the surface of the guide rod. A spring is sleeved and connected to the surface of the guide rod. The surfaces of the guide tube and the extrusion tube are both provided with slots.

[0009] Furthermore, one end of the spring is fixedly connected to the surface of the toothed plate, and the other end of the spring is fixedly connected to the inner wall of the mold body. The guide tube and the extrusion tube are provided with different specifications.

[0010] Furthermore, a turntable is rotatably connected to the surface of the mold body, the surface of the turntable is provided with grooves, and a limit plate is fixedly connected to the surface of the mold body.

[0011] Furthermore, the number of toothed plates is two sets, one set of toothed plates is engaged with the surface of the slot, and the other set of toothed plates is slidably connected with the surface of the groove, with two toothed plates in each set.

[0012] Furthermore, the replacement mechanism also includes an auxiliary component, which includes anti-slip textures formed on the surface of the turntable.

[0013] Furthermore, a sealing ring one is fixedly connected to the surface of both the guide tube and the extrusion tube, and a sealing ring two is fixedly connected to the surface of both the guide tube and the extrusion tube.

[0014] Furthermore, a positioning rod is fixedly connected to the surface of the mold body, and a positioning hole is opened on the surface of the mold body, with the positioning rod cooperating with the positioning hole.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting a replacement mechanism, appropriate specifications of guide tubes and extrusion tubes are selected according to the different sheath layers to be extruded. The cable is passed through the guide tube, the cavity in the mold body and the extrusion tube in sequence. Extruded material is added into the cavity through the feed tube to form the sheath layer on the surface of the moving cable. When replacing the guide tube and extrusion tube, simply rotate the turntable and use the groove to gradually squeeze a set of toothed plates, so that they slide along the guide rod and press the spring, so that the gear drives another set of toothed plates to disengage from the slot. Then the replacement can be carried out quickly. After the replacement is completed, the turntable is released, and the toothed plates are inserted into the slot again under the spring rebound to fix the guide tube and extrusion tube. If multiple sheath layers need to be extruded at the same time, multiple mold bodies can be combined and used by using positioning rods and positioning holes.

[0017] 2. In this utility model, by setting a replacement mechanism and adopting a modular assembly method, different specifications of guide tubes and extrusion tubes can be conveniently replaced according to the size requirements of extruding different sheath layers, without the need to use different mold bodies. Moreover, when any part of the mold body, guide tube, or extrusion tube is damaged, it can be replaced accordingly without replacing the entire mold body, thus effectively improving the applicability of the equipment. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a composite flame-retardant insulated cable sheath processing mold is provided for this utility model;

[0019] Figure 2 This utility model provides an exploded structural diagram of the replacement mechanism in a composite flame-retardant insulated cable sheath processing mold.

[0020] Figure 3 This utility model provides a side view of the replacement mechanism in a composite flame-retardant insulated cable sheath processing mold.

[0021] Figure 4 This utility model provides a cross-sectional structural diagram of the replacement mechanism in a composite flame-retardant insulated cable sheath processing mold.

[0022] Figure 5 This utility model proposes a processing mold for composite flame-retardant insulated cable sheaths. Figure 4 A schematic diagram of the structure at point A.

[0023] Legend:

[0024] 1. Mold body; 2. Cavity; 3. Feed pipe; 4. Changing mechanism; 41. Assembly assembly; 411. Guide pipe; 412. Extrusion pipe; 42. Loading and unloading assembly; 421. Gear; 422. Gear plate; 423. Guide rod; 424. Spring; 425. Slot; 426. Turntable; 427. Groove; 428. Limiting plate; 43. Auxiliary assembly; 431. Anti-slip texture; 432. Sealing ring one; 433. Sealing ring two; 434. Positioning rod; 435. Positioning hole. Detailed Implementation

[0025] Please see Figures 1-5 This utility model provides a technical solution: a composite flame-retardant insulated cable sheath processing mold, including a mold body 1, a cavity 2, a feed pipe 3 and a replacement mechanism 4. The cavity 2 is opened inside the mold body 1, the feed pipe 3 is fixedly connected to the surface of the mold body 1, and the replacement mechanism 4 is set on the surface of the mold body 1.

[0026] The following section will explain the specific setup and function of its replacement mechanism 4.

[0027] In this embodiment: the replacement mechanism 4 includes a combination component 41, which includes a guide tube 411 and an extrusion tube 412. The guide tube 411 and the extrusion tube 412 are respectively disposed at both ends of the mold body 1.

[0028] The replacement mechanism 4 also includes loading and unloading components 42. There are two sets of loading and unloading components 42, which are respectively set at both ends of the mold body 1. The loading and unloading components 42 include gears 421. The gears 421 are rotatably connected to the inner wall of the mold body 1. The surface of the gears 421 is meshed with a toothed plate 422. The inner wall of the mold body 1 is fixedly connected to a guide rod 423. The toothed plate 422 is slidably connected to the surface of the guide rod 423. A spring 424 is sleeved and connected to the surface of the guide rod 423. The surfaces of the guide tube 411 and the extrusion tube 412 are both provided with slots 425.

[0029] The effects achieved by the above components are as follows: the guide tube 411 is provided to guide the cable before extruding the sheath layer; the extrusion tube 412 is provided to cooperate with the extruded material in the cavity 2 to extrude the sheath layer; the two assembly / disassembly components 42 are provided to facilitate the assembly and disassembly of the guide tube 411 and the extrusion tube 412 respectively; the gear 421 and the toothed plate 422 are provided to facilitate the movement of one set of toothed plates 422 to drive the other set of toothed plates 422; the guide rod 423 provides guidance and limit for the movement of the toothed plate 422; the spring 424 is provided to facilitate the reset of the toothed plate 422; and the slot 425 is provided to cooperate with the toothed plate 422 to fix the guide tube 411 and the extrusion tube 412.

[0030] Specifically, one end of the spring 424 is fixedly connected to the surface of the toothed plate 422, and the other end of the spring 424 is fixedly connected to the inner wall of the mold body 1. The guide tube 411 and the extrusion tube 412 are provided with different specifications.

[0031] The effect achieved by the above components is that the guide tubes 411 and extrusion tubes 412 of different specifications are provided to facilitate the extrusion of sheath layers of different sizes.

[0032] Specifically, a turntable 426 is rotatably connected to the surface of the mold body 1, and a groove 427 is provided on the surface of the turntable 426. A limit plate 428 is fixedly connected to the surface of the mold body 1.

[0033] The effects achieved by the above components are as follows: the turntable 426 and the groove 427 are set so that when the turntable 426 is rotated, the groove 427 can gradually squeeze a set of toothed plates 422 downward along the guide rod 423; the limiting plate 428 is set to limit the turntable 426 so that it can only rotate.

[0034] Specifically, there are two sets of toothed plates 422. One set of toothed plates 422 is engaged with the surface of the slot 425, and the other set of toothed plates 422 is slidably connected with the surface of the groove 427. There are two toothed plates 422 in each set.

[0035] The effect achieved by the above components is as follows: the two sets of toothed plates 422 are set so that when the groove 427 gradually squeezes one set of toothed plates 422, the other set of toothed plates 422 will be driven to disengage from the slot 425 under the action of the gear 421. The two sets of toothed plates 422 are set to increase the stability of fixing the guide tube 411 and the extrusion tube 412.

[0036] Specifically, the replacement mechanism 4 also includes an auxiliary component 43, which includes anti-slip texture 431, which is formed on the surface of the turntable 426.

[0037] The effect achieved by the above components is as follows: the anti-slip texture 431 is set to increase friction and prevent slippage when rotating the turntable 426.

[0038] Specifically, sealing ring 432 is fixedly connected to the surface of both guide tube 411 and extrusion tube 412, and sealing ring 433 is fixedly connected to the surface of both guide tube 411 and extrusion tube 412.

[0039] The effects achieved by the above components are as follows: the sealing ring 432 is set to increase the sealing between the guide tube 411 and the extrusion tube and the mold body 1, and the sealing ring 433 is set to increase the sealing between different mold bodies 1 when multiple mold bodies 1 are used in combination.

[0040] Specifically, a positioning rod 434 is fixedly connected to the surface of the mold body 1, and a positioning hole 435 is opened on the surface of the mold body 1, with the positioning rod 434 cooperating with the positioning hole 435.

[0041] The effect achieved by the above components is that the positioning rod 434 and the positioning hole 435 are provided to facilitate the combination and use of multiple mold bodies 1.

[0042] Working principle: By setting up the replacement mechanism 4, the appropriate specifications of the guide tube 411 and extrusion tube 412 are selected according to the different sheath layers to be extruded. The cable is passed through the guide tube 411, the cavity 2 in the mold body 1 and the extrusion tube 412 in sequence. The extruded material is added into the cavity 2 through the feed tube 3 to form the sheath layer on the surface of the moving cable. When replacing the guide tube 411 and extrusion tube 412, simply rotate the turntable 426 and use the groove 427 to gradually squeeze a set of toothed plates 422, so that they slide along the guide rod 423 and press the spring 424, so that the gear 421 drives another set of toothed plates 422 to disengage from the slot 425. Then the replacement can be carried out quickly. After the replacement is completed, the turntable 426 is released. Under the rebound action of the spring 424, the toothed plates 422 are locked back into the slot 425 to fix the guide tube 411 and extrusion tube 412. If multiple sheath layers need to be extruded at the same time, multiple mold bodies 1 can be combined and used using the positioning rod 434 and the positioning hole 435.

[0043] By setting up a replacement mechanism 4 and adopting a modular assembly method, guide tubes 411 and extrusion tubes 412 of different specifications can be easily replaced according to the size requirements of extruding different sheath layers, without the need to use different mold bodies 1. Furthermore, when any part of the mold body 1, guide tube 411, or extrusion tube 412 is damaged, it can be replaced accordingly without replacing the entire mold body 1, thus effectively improving the applicability of the equipment.

Claims

1. A composite flame-retardant insulating cable sheath processing die comprising a die body (1), a cavity (2), a feed tube (3) and a change mechanism (4), characterized in that: The cavity (2) is opened inside the mold body (1), the feed pipe (3) is fixedly connected to the surface of the mold body (1), and the replacement mechanism (4) is set on the surface of the mold body (1); The replacement mechanism (4) includes a combination assembly (41), which includes a guide tube (411) and an extrusion tube (412), which are respectively disposed at both ends of the mold body (1); The replacement mechanism (4) further includes loading and unloading components (42). There are two sets of loading and unloading components (42) and they are respectively set at both ends of the mold body (1). The loading and unloading components (42) include gears (421). The gears (421) are rotatably connected to the inner wall of the mold body (1). The surface of the gears (421) is meshed with a toothed plate (422). The inner wall of the mold body (1) is fixedly connected with a guide rod (423). The toothed plate (422) is slidably connected to the surface of the guide rod (423). The surface of the guide rod (423) is sleeved with a spring (424). The surfaces of the guide tube (411) and the extrusion tube (412) are both provided with slots (425).

2. A composite flame-retardant insulating cable jacket processing die according to claim 1, characterized in that: One end of the spring (424) is fixedly connected to the surface of the toothed plate (422), and the other end of the spring (424) is fixedly connected to the inner wall of the mold body (1). The guide tube (411) and the extrusion tube (412) are provided with different specifications.

3. A composite flame-retardant insulating cable jacket processing die according to claim 1, characterized in that: A turntable (426) is rotatably connected to the surface of the mold body (1). A groove (427) is provided on the surface of the turntable (426). A limit plate (428) is fixedly connected to the surface of the mold body (1).

4. A composite flame-retardant insulated electrical cable jacket processing die according to claim 3, characterized in that: The number of toothed plates (422) is two sets. One set of toothed plates (422) is engaged with the surface of the slot (425), and the other set of toothed plates (422) is slidably connected with the surface of the groove (427). The number of toothed plates (422) in each set is two.

5. A composite flame-retardant insulated electrical cable jacket processing die according to claim 3, characterized in that: The replacement mechanism (4) also includes an auxiliary component (43), which includes anti-slip texture (431) formed on the surface of the turntable (426).

6. A composite flame-retardant insulating cable jacket processing mold according to claim 1, characterized in that: The surfaces of the guide tube (411) and the extrusion tube (412) are both fixedly connected with a sealing ring one (432), and the surfaces of the guide tube (411) and the extrusion tube (412) are both fixedly connected with a sealing ring two (433).

7. A composite flame-retardant insulating cable jacket processing die according to claim 1, characterized in that: A positioning rod (434) is fixedly connected to the surface of the mold body (1), and a positioning hole (435) is opened on the surface of the mold body (1). The positioning rod (434) cooperates with the positioning hole (435).

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