A heating device for producing MPP cable protection pipe

By designing a lifting mechanism and an electromagnet-positioned heating device, the problem of plastic adhesion to the heat-conducting plate was solved, achieving uniform heating and efficient energy utilization of the MPP cable protection pipe, and simplifying the positioning process.

CN224311008UActive Publication Date: 2026-06-02JIAXING CHINA MEDIA PLASTIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING CHINA MEDIA PLASTIC IND CO LTD
Filing Date
2025-06-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the current production process of MPP cable protection pipes, molten MPP plastic easily adheres to the surface of the heat-conducting plate, affecting the heating effect and making it difficult to clean, resulting in a decrease in heating efficiency.

Method used

A heating device comprising first and second heating covers, heating tubes, heat insulation cotton, and reflectors was designed. By using a lifting mechanism and electromagnet positioning, the device can achieve full-wrap heating of the MPP cable protection tube, thereby improving heat utilization and simplifying the positioning process.

Benefits of technology

It achieves uniform heating of MPP cable protection pipes, improves heating efficiency and energy utilization, simplifies positioning operations, and reduces the need for multiple positioning operations.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of heating devices for MPP cable protection pipe production, including first mobile frame, the lower end of the first mobile frame is equipped with several first roller, the upper end of the first mobile frame is equipped with first lifting frame, lifting mechanism is equipped between the first lifting frame and the first mobile frame, the upper end of the first lifting frame is equipped with first heating cover, the upper end of the first heating cover is equipped with first heating pipe, the both ends of the first heating cover are hingedly equipped with second heating cover, the upper end of the second heating cover is equipped with second heating pipe, the both ends of the first lifting frame are hingedly equipped with first electric cylinder, the other end of the first electric cylinder is hingedly connected with the second heating cover.The utility model provides a kind of heating devices for MPP cable protection pipe production, it is heated to surround MPP cable protection pipe, it is convenient to pass through and install, guarantee good heating efficiency, improve the utilization of energy, and can be combined, need not to be positioned multiple times, more time-saving and labor-saving.
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Description

Technical Field

[0001] This utility model belongs to the field of heating device for the production of MPP cable protection pipes. Background Technology

[0002] The background of heating devices for cable protection pipe production can be traced back to the need for heating during the manufacturing process of cables and their protective pipes. Cable protection pipes are used to protect cables buried underground or exposed to harsh environmental conditions from damage and external influences. During the production of these protective pipes, several critical steps require heating to ensure the material can form and solidify correctly. However, current heating methods require the MPP cable protection pipe to be bonded and melted, causing molten MPP plastic to easily adhere to the surface of the heat-conducting plate. Over time, this results in a large amount of difficult-to-clean MPP plastic adhering to the surface of the heat-conducting plate, affecting subsequent heating efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a heating device for the production of MPP cable protection pipes.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A heating device for producing MPP cable protection pipes includes a first movable frame, a plurality of first rollers at the lower end of the first movable frame, a first lifting frame at the upper end of the first movable frame, a lifting mechanism between the first lifting frame and the first movable frame, a first heating cover at the upper end of the first lifting frame, a first heating tube at the upper end of the first heating cover, a second heating cover hinged to both ends of the first heating cover, a second heating tube at the upper end of the second heating cover, a first electric cylinder hinged to both ends of the first lifting frame, and the other end of the first electric cylinder hinged to the second heating cover.

[0006] Furthermore, the lifting mechanism includes a second electric cylinder, a first guide block, and a first guide rod. One end of the second electric cylinder is connected to the first movable frame, and the other end of the second electric cylinder is connected to the first lifting frame. The first guide block is disposed at both ends of the first movable frame, and the first guide block is provided with a first guide hole. The first guide rod is disposed at both ends of the first lifting frame, and the first guide rod corresponds one-to-one with the first guide hole.

[0007] Furthermore, the first heating cover is provided with a first heat insulation cotton and a first reflector. The first reflector is located at the lower end of the first heating tube, and the first heat insulation cotton is located between the first reflector and the first heating cover. The first reflector is arc-shaped.

[0008] Furthermore, the second heating cover is provided with a second heat insulation cotton and a second reflector. The second reflector is located at the lower end of the second heating tube, and the second heat insulation cotton is located between the second reflector and the second heating cover. The second reflector is arc-shaped.

[0009] Furthermore, one end of the first lifting frame is provided with a plurality of first electromagnets, and the other end of the first lifting frame is provided with a plurality of first positioning iron blocks, the first positioning iron blocks corresponding one-to-one with the first electromagnets.

[0010] The present invention discloses a heating device for the production of MPP cable protection pipes. Compared with the prior art, its advantages are that it can surround and heat the MPP cable protection pipes, making them easy to pass through and install, while ensuring good heating efficiency and improving energy utilization. Furthermore, it can be used in combination without the need for multiple positioning, thus saving time and effort. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure from one perspective of a preferred embodiment of the present invention.

[0012] Figure 2 This is a structural schematic diagram from another perspective of a preferred embodiment of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the first lifting frame of a preferred embodiment of the present invention.

[0014] Figure 4 This is a schematic diagram of the heating state of a preferred embodiment of the present invention.

[0015] The reference numerals in the attached drawings include: 100, first movable frame; 110, first roller; 120, second electric cylinder; 130, first guide block; 131, first guide hole; 200, first lifting frame; 210, first guide rod; 220, first positioning iron block; 230, first electromagnet; 310, first heating cover; 311, first heating tube; 312, first heat insulation cotton; 313, first reflector; 320, second heating cover; 321, second heating tube; 322, second heat insulation cotton; 323, second reflector; 330, first electric cylinder; 340, MPP cable protection tube. Detailed Implementation

[0016] This utility model discloses a visual breathing function trainer. The specific implementation of this utility model will be further described below with reference to preferred embodiments.

[0017] See attached diagram. Figure 1-4 , Figure 1 This is a schematic diagram of the structure from one perspective of a preferred embodiment of the present invention. Figure 2 This is a structural schematic diagram from another perspective of a preferred embodiment of the present invention. Figure 3 This is a structural schematic diagram of the first lifting frame 200 according to a preferred embodiment of the present invention. Figure 4 This is a schematic diagram of the heating state of a preferred embodiment of the present invention.

[0018] Preferred embodiment.

[0019] This embodiment provides a heating device for the production of MPP cable protection pipe 340, including a first movable frame 100. The lower end of the first movable frame 100 is provided with a plurality of first rollers 110. The upper end of the first movable frame 100 is provided with a first lifting frame 200. A lifting mechanism is provided between the first lifting frame 200 and the first movable frame 100. The upper end of the first lifting frame 200 is provided with a first heating cover 310. The upper end of the first heating cover 310 is provided with a first heating tube 311. The two ends of the first heating cover 310 are both hinged to a second heating cover 320. The upper end of the second heating cover 320 is provided with a second heating tube 321. The two ends of the first lifting frame 200 are both hinged to a first electric cylinder 330. The other end of the first electric cylinder 330 is hinged to the second heating cover 320.

[0020] Furthermore, the lifting mechanism includes a second electric cylinder 120, a first guide block 130, and a first guide rod 210. One end of the second electric cylinder 120 is connected to the first movable frame 100, and the other end of the second electric cylinder 120 is connected to the first lifting frame 200. The first guide block 130 is disposed at both ends of the first movable frame 100, and the first guide block 130 is provided with a first guide hole 131. The first guide rod 210 is disposed at both ends of the first lifting frame 200, and the first guide rod 210 corresponds one-to-one with the first guide hole 131.

[0021] Furthermore, the first heating cover 310 is provided with a first heat insulation cotton 312 and a first reflector 313. The first reflector 313 is disposed at the lower end of the first heating tube 311, and the first heat insulation cotton 312 is disposed between the first reflector 313 and the first heating cover 310. The first reflector 313 is arranged in an arc shape.

[0022] Furthermore, the second heating cover 320 is provided with a second heat insulation cotton 322 and a second reflector 323. The second reflector 323 is disposed at the lower end of the second heating tube 321, and the second heat insulation cotton 322 is disposed between the second reflector 323 and the second heating cover 320. The second reflector 323 is arranged in an arc shape.

[0023] Furthermore, one end of the first lifting frame 200 is provided with a plurality of first electromagnets 230, and the other end of the first lifting frame 200 is provided with a plurality of first positioning iron blocks 220, and the first positioning iron blocks 220 correspond one-to-one with the first electromagnets 230.

[0024] Working principle: First, the second electric cylinder 120 drives the first lifting frame 200 to move downwards, then pushes the first moving frame 100 to pass under the MPP cable protection pipe 340, so that the first heating cover 310 is directly below the MPP cable protection pipe 340. Then, the second electric cylinder 120 drives the first lifting frame 200 to a suitable height, and the first electric cylinder 330 pushes the second heating cover 320 to flip upwards and close, surrounding the MPP cable protection pipe 340. The first heating pipe 311 then provides heating. The first reflector 313 reflects heat onto the MPP cable protection pipe 340, and the first heat insulation cotton 312 greatly prevents heat from dissipating outwards through the first heating cover 310, improving heat utilization. Similarly, the second reflector 323 and the second heat insulation cotton 322 also enhance the heating effect of the second heating pipe 321, improving energy utilization. When multiple first movable frames 100 are used for simultaneous heating, after the first lifting frame 200 is inserted below the MPP cable protection tube 340 and raised to the same height, when adjacent first lifting frames 200 are close together, the first electromagnet 230 and the first positioning iron block 220 attract each other, which can ensure that the first heating cover 310 and the second heating cover 320 on the first lifting frame 200 are on the same straight line, thereby ensuring that each second heating cover 320 has a good wrapping effect on the MPP cable protection tube 340 when it is closed, without the need for positioning them one by one, which is more convenient.

[0025] It is worth mentioning that the technical features of the first electromagnet 230 and other technical features involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the utility model point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0026] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heating device for the production of MPP cable protection pipe (340), characterized in that, The device includes a first movable frame (100), the lower end of which is provided with a plurality of first rollers (110), the upper end of which is provided with a first lifting frame (200), a lifting mechanism is provided between the first lifting frame (200) and the first movable frame (100), the upper end of which is provided with a first heating cover (310), the upper end of which is provided with a first heating tube (311), both ends of which are hinged to a second heating cover (320), the upper end of which is provided with a second heating tube (321), both ends of which are hinged to a first electric cylinder (330), the other end of which is hinged to the second heating cover (320).

2. The heating device for producing MPP cable protection pipe (340) according to claim 1, characterized in that, The lifting mechanism includes a second electric cylinder (120), a first guide block (130), and a first guide rod (210). One end of the second electric cylinder (120) is connected to the first movable frame (100), and the other end of the second electric cylinder (120) is connected to the first lifting frame (200). The first guide block (130) is disposed at both ends of the first movable frame (100), and the first guide block (130) is provided with a first guide hole (131). The first guide rod (210) is disposed at both ends of the first lifting frame (200), and the first guide rod (210) corresponds one-to-one with the first guide hole (131).

3. The heating device for producing MPP cable protection pipe (340) according to claim 2, characterized in that, The first heating cover (310) is provided with a first heat insulation cotton (312) and a first reflector (313). The first reflector (313) is located at the lower end of the first heating tube (311), and the first heat insulation cotton (312) is located between the first reflector (313) and the first heating cover (310). The first reflector (313) is arc-shaped.

4. The heating device for producing MPP cable protection pipe (340) according to claim 3, characterized in that, The second heating cover (320) is provided with a second heat insulation cotton (322) and a second reflector (323). The second reflector (323) is located at the lower end of the second heating tube (321). The second heat insulation cotton (322) is located between the second reflector (323) and the second heating cover (320). The second reflector (323) is arc-shaped.

5. The heating device for producing MPP cable protection pipe (340) according to claim 4, characterized in that, One end of the first lifting frame (200) is provided with a plurality of first electromagnets (230), and the other end of the first lifting frame (200) is provided with a plurality of first positioning iron blocks (220), and the first positioning iron blocks (220) correspond one-to-one with the first electromagnets (230).