Low smoke cable material efficient double screw extrusion device

Abstract

This utility model relates to the technical field of twin-screw extrusion devices and discloses a high-efficiency twin-screw extrusion device for low-smoke cable materials. It includes an extrusion barrel with two sets of spiral extrusion rods rotatably connected inside. One end of each set of spiral extrusion rods is fixedly connected to the output end of a drive mechanism. A feeding mechanism is fixedly installed on the upper surface of the extrusion barrel, and an anti-blocking mechanism is fixedly installed on the outer surface of the extrusion barrel. The impact end of the anti-blocking mechanism is located on one side of the feeding mechanism. This utility model uses a starting motor to drive a disc to rotate, which in turn drives an impact rod to slide back and forth within a sleeve via a connecting rod. This causes the rubber head to periodically impact a limiting plate. The limiting plate is rigidly connected to the feeding hopper, which is suspended within a fixed cylinder by a connecting spring. The impact force is transmitted to the feeding hopper, causing high-frequency micro-vibration, preventing material accumulation or bridging within the hopper, thus avoiding feeding blockage. This ensures smooth feeding without occupying feeding space, improving practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw extrusion devices, specifically a high-efficiency twin-screw extrusion device for low-smoke cable materials. Background Technology

[0002] The core component of a twin-screw extruder is two meshing screws. Its structure is similar to that of a single-screw extruder, but its working principle is significantly different. In a single-screw extruder, the forward movement of the material depends on the difference in the coefficient of friction between the material and the barrel and screws. In contrast, a twin-screw extruder achieves forced conveying through a C-shaped chamber formed by the meshing screws. For every revolution of the screw, the C-shaped chamber moves forward by one lead distance, effectively preventing backflow or stagnation.

[0003] Existing anti-clogging mechanisms for twin-screw extruders typically employ a motor-driven stirring rod mounted above the feed hopper. However, this structure occupies the feed space, restricts material flow, and consequently affects the smoothness of material feeding, resulting in relatively poor overall practicality. Utility Model Content

[0004] The purpose of this invention is to develop a high-efficiency twin-screw extrusion device for low-smoke cable materials. This device addresses the problem that existing twin-screw extrusion devices typically use a motor-driven stirring rod installed above the feed hopper to prevent clogging. However, this structure occupies the feed space, restricts material flow, and consequently affects the smoothness of material feeding, resulting in relatively poor overall practicality.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-efficiency twin-screw extrusion device for low-smoke cable materials, comprising an extrusion barrel, a drive mechanism installed at one end of the extrusion barrel, two sets of spiral extrusion rods rotatably connected inside the extrusion barrel, one end of each set of spiral extrusion rods being fixedly connected to the output end of the drive mechanism, a feeding mechanism being fixedly installed on the upper surface of the extrusion barrel, and an anti-blocking mechanism being fixedly installed on the outer surface of the extrusion barrel, with the impact end of the anti-blocking mechanism located on one side of the feeding mechanism.

[0007] Furthermore, the feeding mechanism includes a fixed cylinder, which is fixedly installed on the inner wall of the extrusion barrel. Several connecting springs are fixedly installed on the inner surface of the fixed cylinder. A feeding hopper is provided inside the fixed cylinder. The peripheral side of the feeding hopper is fixedly connected to one end of the connecting spring. A limit plate is fixedly installed on the outer surface of the feeding hopper.

[0008] Furthermore, the anti-clogging mechanism includes a mounting plate, which is fixedly mounted on the outer surface of the extrusion barrel. A vertical plate is fixedly mounted on the upper surface of the mounting plate, and a motor is fixedly mounted on the upper surface of the mounting plate. A disc is fixedly mounted on the output end of the motor, and a connecting rod is rotatably connected to one end of the disc.

[0009] Furthermore, a sleeve is fixedly installed inside the upright plate, and an impact rod is slidably connected inside the sleeve.

[0010] Furthermore, one end of the impact rod is rotatably connected to the inside of the connecting rod.

[0011] Furthermore, a rubber head is fixedly installed at the other end of the impact rod, and the rubber head is located on one side of the limiting plate.

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

[0013] (1) This utility model drives the disk to rotate by starting the motor, and drives the impact rod to slide back and forth in the sleeve through the connecting rod, so that the rubber head periodically impacts the limiting plate. The limiting plate is rigidly connected to the feeding hopper, and the feeding hopper is suspended in the fixed cylinder by the connecting spring. The impact force is transmitted to the feeding hopper, which causes high-frequency micro-vibration, preventing the material from accumulating or bridging in the hopper, thereby avoiding the situation of feeding blockage, ensuring the smoothness of feeding, and not occupying the feeding space, thus improving practicality.

[0014] (2) The feed hopper of this utility model is connected by a connecting spring and a fixed cylinder. The connecting spring not only buffers the impact force, but also allows the feed hopper to swing slightly, so as to avoid rigid impact damage to the structure and enhance the vibration effect.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the feeding mechanism and anti-blocking mechanism of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the feeding mechanism of this utility model;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Extrusion barrel; 2. Drive mechanism; 3. Spiral extrusion rod; 4. Feeding mechanism; 401. Fixed cylinder; 402. Connecting spring; 403. Feed hopper; 404. Limiting plate; 5. Anti-blocking mechanism; 501. Mounting plate; 502. Vertical plate; 503. Motor; 504. Disc; 505. Connecting rod; 506. Sleeve; 507. Impact rod; 508. Rubber head. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 As shown, this utility model is a high-efficiency twin-screw extrusion device for low-smoke cable material, including an extrusion barrel 1. A drive mechanism 2 is installed at one end of the extrusion barrel 1. Two sets of spiral extrusion rods 3 are rotatably connected inside the extrusion barrel 1. One end of each set of spiral extrusion rods 3 is fixedly connected to the output end of the drive mechanism 2. A feeding mechanism 4 is fixedly installed on the upper surface of the extrusion barrel 1. An anti-blocking mechanism 5 is fixedly installed on the outer surface of the extrusion barrel 1. The impact end of the anti-blocking mechanism 5 is located on one side of the feeding mechanism 4.

[0025] The drive mechanism 2 drives two sets of spiral extrusion rods 3 to rotate inside the extrusion barrel 1, conveying the cable material fed by the feeding mechanism 4 forward, melting and mixing it, and finally extruding it from the die head to form a shape.

[0026] The feeding mechanism 4 includes a fixed cylinder 401, which is fixedly installed on the inner wall of the extrusion barrel 1. Several connecting springs 402 are fixedly installed on the inner surface of the fixed cylinder 401. A feeding hopper 403 is provided inside the fixed cylinder 401. The peripheral side of the feeding hopper 403 is fixedly connected to one end of the connecting spring 402. A limit plate 404 is fixedly installed on the outer surface of the feeding hopper 403.

[0027] The feed hopper 403 is connected to the fixed cylinder 401 via a connecting spring 402. The connecting spring 402 not only buffers the impact force but also allows the feed hopper 403 to swing slightly, thereby avoiding damage to the structure from rigid impacts and enhancing the vibration effect.

[0028] The anti-blocking mechanism 5 includes a mounting plate 501, which is fixedly mounted on the outer surface of the extrusion barrel 1. A vertical plate 502 is fixedly mounted on the upper surface of the mounting plate 501. A motor 503 is fixedly mounted on the upper surface of the mounting plate 501. A disc 504 is fixedly mounted on the output end of the motor 503. A connecting rod 505 is rotatably connected to one end of the disc 504.

[0029] A sleeve 506 is fixedly installed inside the upright plate 502, and an impact rod 507 is slidably connected inside the sleeve 506.

[0030] One end of the impact rod 507 is rotatably connected to the inside of the connecting rod 505;

[0031] A rubber head 508 is fixedly installed at the other end of the impact rod 507, and the rubber head 508 is located on one side of the limiting plate 404;

[0032] The motor 503 drives the disc 504 to rotate, and the connecting rod 505 drives the impact rod 507 to slide back and forth in the sleeve 506, causing the rubber head 508 to periodically impact the limiting plate 404. The limiting plate 404 is rigidly connected to the feed hopper 403, and the feed hopper 403 is suspended in the fixed cylinder 401 by the connecting spring 402. The impact force is transmitted to the feed hopper 403, causing high-frequency micro-vibration, which prevents the material from accumulating or bridging in the hopper, thereby avoiding the situation of feeding blockage. This ensures the smoothness of feeding without occupying the feeding space, thus improving practicality.

[0033] In use, the drive mechanism 2 first drives the two sets of spiral extrusion rods 3 to rotate in the extrusion barrel 1, conveying the cable material fed by the feeding mechanism 4 forward, melting and mixing it, and finally extruding it from the die head to form a shape.

[0034] The motor 503 drives the disc 504 to rotate, and the connecting rod 505 drives the impact rod 507 to slide back and forth in the sleeve 506, so that the rubber head 508 periodically impacts the limiting plate 404. The limiting plate 404 is rigidly connected to the feed hopper 403, and the feed hopper 403 is suspended in the fixed cylinder 401 by the connecting spring 402. The impact force is transmitted to the feed hopper 403, which causes high-frequency micro-vibration, preventing the material from accumulating or bridging in the hopper, thereby avoiding the situation of feeding blockage. This ensures the smooth feeding without occupying the feeding space, thus improving practicality.

[0035] The feed hopper 403 is connected to the fixed cylinder 401 via a connecting spring 402. The connecting spring 402 not only buffers the impact force but also allows the feed hopper 403 to swing slightly, thereby avoiding damage to the structure from rigid impacts and enhancing the vibration effect.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-efficiency twin-screw extrusion device for low-smoke cable material, comprising an extrusion barrel (1), a drive mechanism (2) being installed at one end of the extrusion barrel (1), and two sets of spiral extrusion rods (3) being rotatably connected inside the extrusion barrel (1), one end of each set of spiral extrusion rods (3) being fixedly connected to the output end of the drive mechanism (2), characterized in that: The upper surface of the extrusion barrel (1) is fixedly equipped with a feeding mechanism (4), and the outer surface of the extrusion barrel (1) is fixedly equipped with an anti-blocking mechanism (5). The impact end of the anti-blocking mechanism (5) is located on one side of the feeding mechanism (4).

2. The high-efficiency twin-screw extruder for low-smoke cable material according to claim 1, characterized in that: The feeding mechanism (4) includes a fixed cylinder (401), which is fixedly installed on the inner wall of the extrusion barrel (1). A plurality of connecting springs (402) are fixedly installed on the inner surface of the fixed cylinder (401). A feeding hopper (403) is provided inside the fixed cylinder (401). The peripheral side of the feeding hopper (403) is fixedly connected to one end of the connecting spring (402). A limit plate (404) is fixedly installed on the outer surface of the feeding hopper (403).

3. The high-efficiency twin-screw extruder for low-smoke cable material according to claim 1, characterized in that: The anti-blocking mechanism (5) includes a mounting plate (501), which is fixedly mounted on the outer surface of the extrusion barrel (1). A vertical plate (502) is fixedly mounted on the upper surface of the mounting plate (501). A motor (503) is fixedly mounted on the upper surface of the mounting plate (501). A disc (504) is fixedly mounted on the output end of the motor (503). A connecting rod (505) is rotatably connected to one end of the disc (504).

4. The high-efficiency twin-screw extruder for low-smoke cable material according to claim 3, characterized in that: A sleeve (506) is fixedly installed inside the upright plate (502), and an impact rod (507) is slidably connected inside the sleeve (506).

5. The high-efficiency twin-screw extruder for low-smoke cable material according to claim 4, characterized in that: One end of the impact rod (507) is rotatably connected to the inside of the connecting rod (505).

6. The high-efficiency twin-screw extruder for low-smoke cable material according to claim 4, characterized in that: A rubber head (508) is fixedly installed at the other end of the impact rod (507), and the rubber head (508) is located on one side of the limiting plate (404).

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