Multi-layer co-extrusion device for cable sheaths

Abstract

The utility model relates to cable production field discloses cable sheath multilayer co -extrusion composite device, including base, the base top fixedly connected with machine head, the mould is slidably connected in the machine head, the both sides of mould all are fixedly connected with the limit stop, the bolt is slidably connected in the machine head, the end fixedly connected with handle away from the limit stop of bolt, the bolt surface fixedly connected with the baffle, the baffle fixedly connected with spring away from the limit stop one side of side, the first bearing frame is provided with in the base front side, the first bearing frame top fixedly connected with electric push rod, the electric push rod output fixedly connected with the push -board, the first bearing frame top fixedly connected with second bearing frame, the utility model discloses the cooperation of handle, spring, bolt and limit stop, realizes quick replacement mould, solved the problem of long time in the prior art when replacing mould, and the problem that the frequent replacement mould can increase downtime greatly.

Description

Technical Field

[0001] This utility model relates to the field of cable production, and in particular to a multi-layer co-extrusion composite device for cable sheaths. Background Technology

[0002] With the increasing diversification of industrial development and societal demands for cable functions, cable sheaths made of single materials can no longer meet the comprehensive performance requirements of complex scenarios. For example, high-voltage transmission cables require excellent insulation, while mining cables must simultaneously achieve flame retardancy, wear resistance, and puncture resistance. Traditional single-layer extrusion processes can only rely on the characteristics of a single material and cannot take into account multiple functions. Therefore, multi-layer co-extrusion composite devices for cable sheaths have emerged.

[0003] The multi-layer co-extrusion composite device for cable sheathing consists of multiple extruders, a composite die head, a cooling system, a traction and take-up device, and a control system. The multiple extruders melt and convey materials with different properties. The composite die head, through an internal flow-dividing structure, precisely combines multiple strands of molten material according to a preset structure. After passing through a shaping section, a multi-layer integral structure is formed. After molding, it is solidified by the cooling system, and the traction device pulls it at a uniform speed to ensure uniform thickness. Finally, the take-up device winds it up.

[0004] One major drawback of the multi-layer co-extrusion composite device for cable sheaths lies in the replacement of the composite die head. Because the die head needs to match the diversion and merging structure of multiple layers of materials, the die design is precise and the flow channel is complex. When replacing it, not only do multiple components of the die head need to be disassembled, but this process is often time-consuming. Especially in small-batch, multi-specification production scenarios, frequent die replacement will significantly increase downtime and reduce the overall production efficiency of the equipment. Therefore, the multi-layer co-extrusion composite device for cable sheaths is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-layer co-extrusion composite device for cable sheaths, which aims to improve the problem that the existing technology takes a long time to change molds, especially in small-batch, multi-specification production scenarios, where frequent mold changes will greatly increase downtime.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-layer co-extrusion composite device for cable sheaths includes a base, a die head fixedly connected to the top of the base, a mold slidably connected inside the die head, limit blocks fixedly connected to both sides of the mold, a pin slidably connected inside the die head, a handle fixedly connected to the end of the pin away from the limit block, a baffle fixedly connected to the surface of the pin, and a spring fixedly connected to the side of the baffle away from the limit block.

[0008] As a further description of the above technical solution:

[0009] A first load-bearing frame is provided on the front side of the base. An electric push rod is fixedly connected to the top of the first load-bearing frame. A push plate is fixedly connected to the output end of the electric push rod. A second load-bearing frame is fixedly connected to the top of the first load-bearing frame. A controller is fixedly connected to the top of the second load-bearing frame. A cylinder is fixedly connected to the top of the second load-bearing frame. A cutting tool is fixedly connected to the output end of the cylinder through the second load-bearing frame.

[0010] As a further description of the above technical solution:

[0011] The pin is slidably connected inside the limiting block, and the limiting block is slidably connected inside the machine head;

[0012] As a further description of the above technical solution:

[0013] The other end of the spring is fixedly connected to the inner right wall of the machine head, and the spring is sleeved on the outside of the pin.

[0014] As a further description of the above technical solution:

[0015] The baffle is slidably connected inside the machine head;

[0016] As a further description of the above technical solution:

[0017] The push plate is slidably connected to the top of the first load-bearing frame;

[0018] As a further description of the above technical solution:

[0019] The electric push rod is located in front of the cutter, and the ultrasonic detector is located directly above the discharge port of the machine head.

[0020] As a further description of the above technical solution:

[0021] The ultrasonic detector is electrically connected to the cylinder and the electric push rod via the controller.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by cooperating the handle, spring, pin and limit block, when changing the mold, it is only necessary to pull the handle to release the limit, and after inserting the new mold, the spring automatically resets the limit. The operation is simple and fast, which meets the diverse production needs of cable sheaths, reduces downtime for mold changing, and solves the problem that the existing technology takes a long time to change molds, especially in small batch and multi-specification production scenarios, where frequent mold changes will greatly increase downtime.

[0024] 2. In this utility model, ultrasonic testing is combined with cylinder and electric push rod for trimming and collection, timely processing and rejection of defective products, effectively ensuring the dimensional accuracy and performance consistency of cable sheaths, and improving the production yield. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the multi-layer co-extrusion composite device for cable sheaths proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the die head of the multilayer co-extrusion composite device for cable sheaths proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Base; 2. Machine head; 3. Mold; 4. Limit block; 5. Pin; 6. Handle; 7. Baffle; 8. Spring; 9. First load-bearing frame; 10. Electric push rod; 11. Push plate; 12. Second load-bearing frame; 13. Controller; 14. Ultrasonic detector; 15. Cylinder; 16. Cutting tool; 17. Collection box. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3This utility model provides an embodiment of a multi-layer co-extrusion composite device for cable sheaths, comprising a base 1, a die head 2 fixedly connected to the top of the base 1, and a mold 3 slidably connected inside the die head 2, which is the core working area for achieving multi-layer material co-extrusion composite, providing space for the mold 3. Limiting blocks 4 are fixedly connected to both sides of the mold 3, cooperating with preset slots inside the die head 2 to position the mold 3. A pin 5 is slidably connected inside the die head 2, and a handle 6 is fixedly connected to the end of the pin 5 away from the limiting block 4, providing a convenient point of force for the operator. The pin 5 can be manually pulled out and inserted. The operation steps for changing mold 3 are as follows: a baffle 7 is fixedly connected to the surface of the pin 5, and a spring 8 is fixedly connected to the side of the baffle 7 away from the limit block 4. The pin 5 is slidably connected inside the limit block 4, and forms an elastic locking structure with the spring 8. When the mold 3 is installed in place, the spring 8 pushes the baffle 7 to automatically reset the pin 5, ensuring a stable connection between the pin 5 and the limit block 4. The limit block 4 is slidably connected inside the machine head 2. The other end of the spring 8 is fixedly connected to the right wall inside the machine head 2. The spring 8 is sleeved on the outside of the pin 5. The baffle 7 is slidably connected inside the machine head 2. The push plate 11 is slidably connected to the top of the first load-bearing frame 9.

[0032] Reference Figure 1 A first load-bearing frame 9 is provided on the front side of the base 1. An electric push rod 10 is fixedly connected to the top of the first load-bearing frame 9. A push plate 11 is fixedly connected to the output end of the electric push rod 10, serving as a support base for the post-processing stage and providing a stable mounting surface for components such as the electric push rod 10 and the push plate 11. A second load-bearing frame 12 is fixedly connected to the top of the first load-bearing frame 9. A controller 13 is fixedly connected to the top of the second load-bearing frame 12. A cylinder 15 is fixedly connected to the top of the second load-bearing frame 12. The output end of the cylinder 15 passes through the second load-bearing frame 12 and is fixedly connected to a cutter 16, serving as the power source for the cutter 16. This allows the cutter 16 to be quickly driven to cut and trim unqualified products, reducing the flow of defective products. The electric push rod 10 is located in front of the cutter 16, and the ultrasonic detector 14 is located directly above the discharge port of the machine head 2, forming an orderly process of detection, trimming, and rejection. The ultrasonic detector 14 is electrically connected to the cylinder 15 and the electric push rod 10 through the controller 13.

[0033] Working principle: When the multi-layer co-extrusion composite device for cable sheaths is working, the mold 3 is first inserted into the die head 2, the limiting block 4 slides into the groove of the die head 2, the spring 8 pushes the baffle 7, so that the pin 5 is inserted into the hole of the limiting block 4 to fix the mold 3. Materials with different properties are fed into the die head 2 through the extruder, and are precisely combined and formed in the die 3 according to the preset composite structure. The formed sheath is extruded from the discharge port of the die head 2. The ultrasonic detector 14 detects in real time. If a defective product is detected, the controller 13 starts the cylinder 15 to trim the cutter 16, and then starts the electric push rod 10 to push the push plate 11 into the collection box 17 for collection. All components work together in an orderly manner to stably produce multi-functional cable sheaths. When it is necessary to replace the mold 3, the handle 6 is pulled, the baffle 7 compresses the spring 8, and the limiting block 4 and the mold 3 are released. After the mold 3 is replaced, the pin 5 is reset by the spring 8 to re-limit the limiting block 4 and the mold 3, so as to realize the quick replacement of the mold 3. The ultrasonic detector 14 is model U1KT006.

[0034] 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. A multi-layer co-extrusion composite device for cable sheaths, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the machine head (2), and the machine head (2) is slidably connected to the mold (3). Limit blocks (4) are fixedly connected to both sides of the mold (3). The machine head (2) is slidably connected to the pin (5). A handle (6) is fixedly connected to the end of the pin (5) away from the limit block (4). A baffle (7) is fixedly connected to the surface of the pin (5). A spring (8) is fixedly connected to the side of the baffle (7) away from the limit block (4).

2. The multi-layer co-extrusion composite device for cable sheaths according to claim 1, characterized in that: The base (1) is provided with a first load-bearing frame (9) on the front side. An electric push rod (10) is fixedly connected to the top of the first load-bearing frame (9). A push plate (11) is fixedly connected to the output end of the electric push rod (10). A second load-bearing frame (12) is fixedly connected to the top of the first load-bearing frame (9). A controller (13) is fixedly connected to the top of the second load-bearing frame (12). A cylinder (15) is fixedly connected to the top of the second load-bearing frame (12). A knife (16) is fixedly connected to the output end of the cylinder (15) through the second load-bearing frame (12). An ultrasonic detector (14) is fixedly connected to the bottom of the second load-bearing frame (12). A collection box (17) is abutted against the right side of the first load-bearing frame (9).

3. The multi-layer co-extrusion composite device for cable sheaths according to claim 1, characterized in that: The pin (5) is slidably connected inside the limiting block (4), and the limiting block (4) is slidably connected inside the machine head (2).

4. The multi-layer co-extrusion composite device for cable sheaths according to claim 1, characterized in that: The other end of the spring (8) is fixedly connected to the inner right wall of the machine head (2), and the spring (8) is sleeved on the outside of the pin (5).

5. The multi-layer co-extrusion composite device for cable sheaths according to claim 1, characterized in that: The baffle (7) is slidably connected inside the head (2).

6. The multi-layer co-extrusion composite device for cable sheaths according to claim 2, characterized in that: The push plate (11) is slidably connected to the top of the first load-bearing frame (9).

7. The multi-layer co-extrusion composite device for cable sheaths according to claim 2, characterized in that: The electric push rod (10) is located in front of the cutter (16), and the ultrasonic detector (14) is located directly above the discharge port of the machine head (2).

8. The multi-layer co-extrusion composite device for cable sheaths according to claim 2, characterized in that: The ultrasonic detector (14) is electrically connected to the cylinder (15) and the electric push rod (10) via the controller (13).

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