Underwater pelletizing mechanism for cable material

Abstract

The utility model discloses an underwater pelletizing mechanism for cable materials, which comprises a cooling box, a sliding rail is fixed at the bottom of the inner side of the cooling box, and a driving shell is arranged above the sliding rail; according to the utility model, the driving shell is arranged in the cooling box in a sliding manner, the external hydraulic station conveys hydraulic oil to the rodless cavity of the hydraulic cylinder, so that the hydraulic energy of the hydraulic oil is converted into the linear reciprocating motion of the hydraulic cylinder, and the proportional valve or the servo valve is arranged on the hydraulic oil pipe between the external hydraulic station and the hydraulic cylinder; on the basis, a guide rod arranged at the tail end of the driving shell is connected with the cooling box in a penetrating mode, a sliding sleeve at the bottom of the driving shell is connected with a sliding rail in the cooling box in a sliding mode, and therefore the hydraulic cylinder can drive the driving shell to transversely move in the cooling box in a high-stability mode. And the cutter mounted at the output end of the servo motor is accurately contacted with the end surface of the extrusion die head.

Description

Technical Field

[0001] This utility model relates to the field of plastic granulation processing technology, and in particular to an underwater pelletizing mechanism for cable materials. Background Technology

[0002] Cable material is a polymer material used to manufacture the outer sheath or insulation layer of wires and cables. Its main functions include insulation protection, flame retardancy and weather resistance, and anti-aging. It is widely used in power transmission, communication and construction. In the production process, cable material needs to be granulated by an underwater pelletizer.

[0003] In the current underwater cutting equipment, the blade extends into the discharge port and comes into contact with the extrusion die. Due to the limited accuracy of the traditional blade displacement (which is traditionally driven by a cylinder or screw), excessive contact force during contact can lead to accelerated blade wear. Furthermore, if the blade does not make tight contact with the extrusion die, it will be unable to cooperate with the extrusion die to cut the material, resulting in a decrease in cutting quality.

[0004] To address this, an underwater pelletizing mechanism for cable materials is proposed, which has the advantage of easy and precise positioning of the cutting tool and the extrusion die, thereby solving the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an underwater pelletizing mechanism for cable materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an underwater pelletizing mechanism for cable materials, comprising a cooling box, a slide rail fixed to the bottom of the inner side of the cooling box, and a drive housing above the slide rail. A sliding sleeve slidably connected to the slide rail is provided at the bottom of the drive housing, and a servo motor is fixedly installed inside the drive housing by bolts. A reducer is installed at the output end of the servo motor, and a cutter disc is fixedly installed through the shaft end of the reducer through the cooling box. Several pelletizing blades are mounted around the surface of the cutter disc. An extrusion die is inserted into the right side wall of the cooling box, and the discharge end of the extrusion die abuts against the pelletizing blades of the cutter disc. A hydraulic cylinder is fixedly installed on the right side inside the cooling box, and the surface of the hydraulic cylinder is connected to an external hydraulic station through a hydraulic oil pipe. A proportional valve or servo valve is installed on the surface of the hydraulic oil pipe of the hydraulic cylinder. A guide rod inserted into the cooling box is provided at the tail of the drive housing.

[0007] As a further description of the above technical solution: the inner wall of the cooling box is welded with a water-proof shell, and the cross-section of the water-proof shell is an arc-shaped structure, and the water-proof shell covers the periphery of the hydraulic cylinder.

[0008] As a further description of the above technical solution: multiple guide rods are provided, and the multiple guide rods are arranged in parallel, and each guide rod is interlocked with the cooling box.

[0009] As a further description of the above technical solution: a blade holder is provided on the side of the pelletizing blade facing the cutter disc, and mounting blocks are integrally formed on both sides of the blade holder, and the surface of the mounting blocks is fixedly connected to the cutter disc by screws.

[0010] As a further description of the above technical solution: the top surface of the drive housing is provided with an opening, and the material of the drive housing is alloy steel or aluminum alloy.

[0011] As a further description of the above technical solution: a mounting hole is provided at the center of the cutter head, and a notch is provided inside the mounting hole.

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

[0013] In this invention, a drive housing is slidably installed inside a cooling box. An external hydraulic station supplies hydraulic oil to the rodless chamber of the hydraulic cylinder, converting the hydraulic energy of the hydraulic oil into linear reciprocating motion of the hydraulic cylinder. A proportional valve or servo valve is installed on the hydraulic oil pipe between the external hydraulic station and the hydraulic cylinder, which can precisely adjust the valve opening according to the input signal to achieve precise displacement control of the hydraulic cylinder. On this basis, a guide rod at the tail end of the drive housing is inserted and connected to the cooling box, and a sliding sleeve at the bottom of the drive housing is slidably connected to a slide rail inside the cooling box. This allows the hydraulic cylinder to drive the drive housing to move smoothly and horizontally within the cooling box until the cutter head mounted at the output end of the servo motor makes precise contact with the end face of the extrusion die. This avoids excessive contact force that could lead to accelerated tool wear and also prevents poor contact that could lead to a decrease in cutting quality. At the same time, the drive housing built into the cooling box can absorb the cold water in the cooling box and conduct it to the servo motor mounting position, thereby cooling the servo motor and extending its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the underwater pelletizing mechanism for cable material according to the present invention;

[0015] Figure 2 This is a schematic diagram of the drive housing structure;

[0016] Figure 3 This is a schematic diagram of the cutter head.

[0017] Legend:

[0018] 1. Cooling box; 2. Slide rail; 3. Drive housing; 4. Sliding sleeve; 5. Servo motor; 6. Reducer; 7. Cutter head; 8. Extrusion die head; 9. Hydraulic cylinder; 10. Waterproof shell; 11. Guide rod; 12. Pelletizing blade; 13. Blade holder; 14. Mounting block; 15. Mounting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] According to an embodiment of the present invention, an underwater pelletizing mechanism for cable materials is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3 As shown, an underwater pelletizing mechanism for cable materials according to an embodiment of this utility model includes a cooling box 1. A slide rail 2 is fixed to the bottom of the inner side of the cooling box 1, and a drive housing 3 is provided above the slide rail 2. A sliding sleeve 4 is provided at the bottom of the drive housing 3 and is slidably connected to the slide rail 2. A servo motor 5 is fixedly installed inside the drive housing 3 by bolts. A reducer 6 is installed at the output end of the servo motor 5, and a cutter disc 7 is fixed through the shaft end of the reducer 6 through the cooling box 1. A plurality of pelletizing blades 12 are installed around the surface of the cutter disc 7. An extrusion die 8 is inserted through the right side wall of the cooling box 1, and the discharge end of the extrusion die 8 abuts against the pelletizing blades 12 of the cutter disc 7. A hydraulic cylinder 9 is fixedly installed on the right side inside the cooling box 1, and the surface of the hydraulic cylinder 9 is connected to an external hydraulic station through a hydraulic oil pipe. A proportional valve or servo valve is installed on the surface of the hydraulic oil pipe of the hydraulic cylinder 9. A guide rod 11 is provided at the tail of the drive housing 3 and is inserted through the cooling box 1. As a further extension of this embodiment, the installation positions of the proportional valve or servo valve can be: (1) at the fluid source (pump outlet or front end of the main oil circuit) installed at the front end of the main oil circuit of the hydraulic system to preferentially adjust the overall flow and pressure of the system and avoid the control accuracy being affected by downstream pressure fluctuations; (2) near the actuator (hydraulic cylinder 9 / motor inlet end) to directly control the action of the actuator and reduce the impact of pipeline delay on the response speed; (3) at the key node of the system (the junction of branch oil circuits or the buffer circuit) installed in the branch oil circuit or buffer circuit to dynamically balance the multi-flow distribution and prevent local pressure shocks. For the servo motor 5, the control method of this utility model is to control it by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Moreover, this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and wiring arrangement in detail.

[0022] In one embodiment, a water-proof shell 10 is welded to the inner wall of the cooling tank 1, and the cross-section of the water-proof shell 10 is an arc-shaped structure. The water-proof shell 10 covers the periphery of the hydraulic cylinder 9. This structure makes it easy to provide water-proof protection for the hydraulic cylinder 9.

[0023] In one embodiment, multiple guide rods 11 are provided, and the multiple guide rods 11 are arranged in parallel. Each guide rod 11 is interlocked with the cooling box 1. With this structure, combined with the arrangement of slide rail 2 and slide sleeve 4 (slide rail 2 and slide sleeve 4 are conventional sliding parts, and their shape and structure will not be described in detail), it is easy to improve the smoothness of the movement of the drive housing 3 and further ensure the displacement accuracy.

[0024] In one embodiment, a blade holder 13 is provided on the side of the pelletizing blade 12 facing the cutter head 7, and mounting blocks 14 are integrally formed on both sides of the blade holder 13. The surface of the mounting blocks 14 is fixedly connected to the cutter head 7 by screws. This structure makes the pelletizing blade 12 detachable and easy to replace later.

[0025] In one embodiment, the top surface of the drive housing 3 is open, and the material of the drive housing 3 is alloy steel or aluminum alloy. With this structure, the drive housing 3 built into the cooling box 1 can absorb the cold energy of the cold water in the cooling box 1 and conduct it to the installation position of the servo motor 5, thereby cooling down the servo motor 5 and helping to extend the service life of the servo motor 5.

[0026] In one embodiment, a mounting hole 15 is provided at the center of the cutter head 7, and a notch is provided inside the mounting hole 15. This structure facilitates the installation of the cutter head 7.

[0027] Working principle:

[0028] In use, the hydraulic cylinder 9 is first connected to the external hydraulic station via a hydraulic oil pipe. When the external hydraulic station is working, it supplies hydraulic oil to the rodless chamber of the hydraulic cylinder 9, converting the hydraulic energy of the hydraulic oil into the linear reciprocating motion of the hydraulic cylinder 9. A proportional valve or servo valve is installed on the hydraulic oil pipe between the external hydraulic station and the hydraulic cylinder 9, which can precisely adjust the valve opening according to the input signal to achieve precise displacement control of the hydraulic cylinder 9. Based on this, the guide rod 11 at the tail end of the drive housing 3 is inserted and connected to the cooling box 1. The bottom of the drive housing 3... The sliding sleeve 4 of the part is slidably connected to the slide rail 2 inside the cooling box 1, so that the hydraulic cylinder 9 can drive the drive housing 3 to move smoothly and horizontally inside the cooling box 1 until the cutter head 7 installed at the output end of the servo motor 5 makes precise contact with the end face of the extrusion die 8. This avoids excessive contact force that would cause accelerated tool wear, and also prevents poor contact that would lead to a decrease in cutting quality. At the same time, the drive housing 3 built into the cooling box 1 can absorb the cold water in the cooling box 1 and conduct it to the installation position of the servo motor 5, thereby cooling the servo motor 5 and helping to extend the service life of the servo motor 5.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An underwater pelletizing mechanism for cable materials, comprising a cooling box (1), characterized in that: The cooling box (1) has a slide rail (2) fixed to the bottom inside, and a drive housing (3) is provided above the slide rail (2). The bottom of the drive housing (3) is provided with a sliding sleeve (4) that is slidably connected to the slide rail (2). A servo motor (5) is fixedly installed inside the drive housing (3) by bolts. A reducer (6) is installed at the output end of the servo motor (5). The shaft end of the reducer (6) passes through the cooling box (1) and is fixed with a cutter disc (7). Several granulating blades are installed around the surface of the cutter disc (7). 12) An extrusion die (8) is inserted into the right side wall of the cooling box (1), and the discharge end of the extrusion die (8) abuts against the pelletizing blade (12) of the cutter disc (7). A hydraulic cylinder (9) is fixedly installed on the right side inside the cooling box (1), and the surface of the hydraulic cylinder (9) is connected to an external hydraulic station through a hydraulic oil pipe. A proportional valve or servo valve is installed on the surface of the hydraulic oil pipe of the hydraulic cylinder (9). A guide rod (11) is provided at the tail of the drive housing (3) and inserted into the cooling box (1).

2. The underwater pelletizing mechanism for cable material according to claim 1, characterized in that: The inner wall of the cooling box (1) is welded with a water-proof shell (10), and the cross section of the water-proof shell (10) is an arc-shaped structure, and the water-proof shell (10) covers the periphery of the hydraulic cylinder (9).

3. The underwater pelletizing mechanism for cable material according to claim 1, characterized in that: Multiple guide rods (11) are provided, and the multiple guide rods (11) are arranged in parallel, and each guide rod (11) is interlocked with the cooling box (1).

4. The underwater pelletizing mechanism for cable material according to claim 1, characterized in that: The granulating blade (12) has a blade holder (13) on the side facing the cutter disc (7), and both sides of the blade holder (13) are integrally formed with mounting blocks (14), and the surface of the mounting blocks (14) is fixedly connected to the cutter disc (7) by screws.

5. The underwater pelletizing mechanism for cable material according to claim 1, characterized in that: The top surface of the drive housing (3) is open, and the material of the drive housing (3) is alloy steel or aluminum alloy.

6. The underwater pelletizing mechanism for cable material according to claim 1, characterized in that: The cutter head (7) has a mounting hole (15) at its center, and a notch is provided inside the mounting hole (15).

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