PP-R large opening pipe welding device

Abstract

The utility model discloses a kind of PP-R large-bore pipeline welding devices, including female die, male die, support plate and control box, female die includes female die body and female die heating wire, female die heating wire is embedded in female die body, male die includes male die body and male die heating wire, male die heating wire is embedded in male die body, female die body and male die body are respectively installed on support plate by detachable mode, and female die body and male die body are respectively located support plate both sides, control box is installed on support plate, female die heating wire and male die heating wire are respectively electrically connected with control box. The device simple structure, ingenious design, solved the series of hot melt welding problems caused by the diameter of PP-R pipe material becomes larger, improve the efficiency and quality of hot melt welding.

Description

Technical Field

[0001] This utility model relates to the field of aluminum-plastic PE-RT composite pipe production and processing technology, specifically to a PP-R large-diameter pipe welding device. Background Technology

[0002] Currently, the vast majority of polyolefin plastic pipe connections are made by hot-melting a die and then connecting them with a socket joint. This connection method is simple and reliable. However, for large-diameter PP-R plastic pipe systems, due to the larger diameter of the PP-R pipe, the die still transfers heat from the heating plate, resulting in a longer heating process and significantly lower construction efficiency.

[0003] Moreover, in the actual hot melt welding process, because large-diameter pipes absorb a lot of heat, the temperature transfer from the heating plate to the die head is slow, resulting in uneven heating and potential quality problems in the connection between large-diameter pipes and fittings. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a welding device for large-diameter PP-R pipes. The device has a simple structure and ingenious design, which solves a series of hot-melt welding problems caused by the increase in the diameter of PP-R pipes, and improves the efficiency and quality of hot-melt welding.

[0005] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0006] A PP-R large-diameter pipe welding device includes a female mold, a male mold, a support plate, and a control box. The female mold includes a female mold body and a female mold heating wire, with the heating wire embedded in the female mold body. The male mold includes a male mold body and a male mold heating wire, with the heating wire embedded in the male mold body. The female mold body and the male mold body are detachably mounted on the support plate, and the female mold body and the male mold body are located on opposite sides of the support plate. The control box is mounted on the support plate, and the female mold heating wire and the male mold heating wire are electrically connected to the control box.

[0007] The female mold body and the female mold heating wire are integrally cast, and the male mold body and the male mold heating wire are integrally cast.

[0008] The support plate is provided with a positive electrode for the female mold, a negative electrode for the female mold, a positive electrode for the male mold, and a negative electrode for the male mold. The two ends of the female mold heating wire are connected to the positive electrode for the female mold and the negative electrode for the female mold, respectively. The two ends of the male mold heating wire are connected to the positive electrode for the male mold and the negative electrode for the male mold, respectively. The positive electrode for the female mold, the negative electrode for the female mold, the positive electrode for the male mold, and the negative electrode for the male mold are connected to the control box through wires, and the wires pass through the support plate.

[0009] The female mold heating wire is generally ring-shaped and has a wave structure, and the female mold heating wire surrounds the female mold body. The male mold heating wire is also ring-shaped and has a wave structure, and the male mold heating wire surrounds the female mold body.

[0010] The support plate is provided with threaded holes, and the male mold body and the female mold body are respectively provided with threaded holes in the center. The male mold body and the female mold body are installed on both sides of the support plate by locking bolts.

[0011] The support plate is shaped like a shower head, with a circular main body. The two opposite sides of the support plate handle are connected to the main body and the control box, respectively.

[0012] A heat insulation cover is fitted onto the handle portion of the support plate.

[0013] The control box is symmetrically equipped with a pair of handles.

[0014] Compared with the prior art, the beneficial effects and advantages of this utility model are as follows:

[0015] 1. This device is ingeniously designed, integrating the original heating wire element from the heating plate into the male and female mold heads. The original heating plate is transformed into a support plate for mounting the male and female molds. The heating wire directly heats the male and female molds, avoiding the heat transfer process, shortening the heating time, and improving the efficiency of hot melt welding. At the same time, the temperature response speed is fast, and the heating is more uniform, ensuring the connection quality of large-diameter pipes and fittings and improving the quality of hot melt welding.

[0016] 2. The device sets the heating wire into a circular wave structure, which makes the heating of the female mold and the male mold more uniform and further improves the quality of hot melt welding.

[0017] 3. The female and male molds of this device are detachably installed on the support plate, making it easier to replace female and male molds of different specifications, thus further improving the applicability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the PP-R large-diameter pipe welding device.

[0019] Figure 2 This is a partial exploded view of the welding equipment for PP-R large-diameter pipes.

[0020] Figure 3 for Figure 1 The main view.

[0021] Figure 4 for Figure 3 Sectional view along the AA direction.

[0022] Among them, 1-support plate, 2-female mold body, 3-female mold heating wire, 4-male mold body, 5-male mold heating wire, 6-locking bolt, 7-control box, 8-male mold positive electrode, 9-male mold negative electrode, 10-handle, 11-power indicator light, 12-temperature indicator light, 13-temperature adjustment knob, 14-heat insulation cover. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] The structure of the PP-R large-diameter pipe welding device provided in this embodiment is as follows: Figure 1-3 As shown, it includes a female mold, a male mold, a support plate 1, a control box 7, and a locking bolt 6.

[0025] The support plate 1 is shaped like a showerhead and includes a main body and a handle. One side of the handle is connected to the main body. The main body is circular with a threaded hole in the center. A heat shield 14 is fitted onto the handle to prevent burns when holding it. The support plate 1 no longer serves a heating function; it solely supports and mounts the female and male molds, revolutionizing the conventional approach of current hot melt welding devices.

[0026] The female mold includes a female mold body 2 and a female mold heating wire 3. The female mold heating wire 3 has a wave-like structure and is integrally cast and embedded within the female mold body 2. The female mold heating wire 3 is generally ring-shaped and surrounds the female mold body. This combination of ring and wave shapes effectively increases the heating area and improves heating efficiency.

[0027] The male mold includes a male mold body 4 and a male mold heating wire 5. The male mold heating wire 5 has a wave-like structure and is integrally cast and embedded within the male mold body 4. The male mold heating wire 5 is generally ring-shaped and surrounds the male mold body 4. This combination of ring and wave shapes effectively increases the heating area and improves heating efficiency.

[0028] The male mold body 4 and the female mold body 2 are respectively provided with threaded holes in the center. The female mold body 2 and the male mold body 4 are respectively installed on both sides of the support plate body by locking bolts 6. The female mold body 2 and the male mold body 4 can be easily installed on the support plate body by a single locking bolt 6, and it is also easy to disassemble. When the male mold and the female mold are damaged, or when it is necessary to replace them with male molds and female molds of different specifications, the operation is convenient.

[0029] The control box 7 is installed on the other side of the support plate handle, with the control box 7 and the support plate body facing each other. The support plate is equipped with a female mold positive electrode, a female mold negative electrode, a male mold positive electrode 8, and a male mold negative electrode 9. The two ends of the female mold heating wire 3 are connected to the female mold positive electrode and the female mold negative electrode, respectively, and the two ends of the male mold heating wire 5 are connected to the male mold positive electrode 8 and the male mold negative electrode 9, respectively. The female mold positive electrode, female mold negative electrode, male mold positive electrode 8, and male mold negative electrode 9 are electrically connected to the control box 7 via wires. The wires pass through the support plate handle and are all housed inside the support plate handle to avoid exposed wires and potential safety hazards.

[0030] The control box is equipped with a pair of symmetrical handles 10, which allow for easy carrying of the entire device. The handles 10 are generally insulated, ensuring safety. The control box 7 is also equipped with a power indicator light 11, a temperature indicator light 12, a temperature adjustment knob 13, etc. These electronic control components can conveniently control the heating of the male and female molds.

[0031] When PPR pipes need to be hot-melt welded, the power is turned on, and the heating wire 5 in the male mold and the heating wire 3 in the female mold start to work. When the heating temperature reaches the set temperature, the end of the PPR pipe is heated and hot-melted through the male mold, and the end of the PPR pipe is heated and hot-melted through the female mold. Since the heating is done directly through the male and female molds, the heat transfer process is eliminated, which improves the efficiency and quality of hot-melt welding and solves a series of hot-melt welding problems caused by the increase in the diameter of PP-R pipes.

Claims

1. A welding device for large-diameter PP-R pipes, characterized in that: The system includes a female mold, a male mold, a support plate, and a control box. The female mold includes a female mold body and a female mold heating wire, with the heating wire embedded within the female mold body. The male mold includes a male mold body and a male mold heating wire, with the heating wire embedded within the male mold body. The female mold body and the male mold body are detachably mounted on the support plate, and the female mold body and the male mold body are located on opposite sides of the support plate. The control box is mounted on the support plate, and the female mold heating wire and the male mold heating wire are electrically connected to the control box.

2. The PP-R large-diameter pipe welding device according to claim 1, characterized in that: The female mold body and the female mold heating wire are integrally cast, and the male mold body and the male mold heating wire are integrally cast.

3. The PP-R large-diameter pipe welding device according to claim 1, characterized in that: The support plate is provided with a positive electrode for the female mold, a negative electrode for the female mold, a positive electrode for the male mold, and a negative electrode for the male mold. The two ends of the female mold heating wire are connected to the positive electrode for the female mold and the negative electrode for the female mold, respectively. The two ends of the male mold heating wire are connected to the positive electrode for the male mold and the negative electrode for the male mold, respectively. The positive electrode for the female mold, the negative electrode for the female mold, the positive electrode for the male mold, and the negative electrode for the male mold are connected to the control box through wires, and the wires pass through the support plate.

4. The PP-R large-diameter pipe welding device according to claim 1, characterized in that: The female mold heating wire is generally ring-shaped and has a wave structure, and the female mold heating wire surrounds the female mold body. The male mold heating wire is also ring-shaped and has a wave structure, and the male mold heating wire surrounds the female mold body.

5. The PP-R large-diameter pipe welding device according to claim 1, characterized in that: The support plate is provided with threaded holes, and the male mold body and the female mold body are respectively provided with threaded holes in the center. The male mold body and the female mold body are installed on both sides of the support plate by locking bolts.

6. The PP-R large-diameter pipe welding device according to claim 1, characterized in that: The support plate is shaped like a shower head, with a circular main body. The two opposite sides of the support plate handle are connected to the main body and the control box, respectively.

7. The PP-R large-diameter pipe welding device according to claim 6, characterized in that: A heat insulation cover is fitted onto the handle portion of the support plate.

8. The PP-R large-diameter pipe welding device according to claim 6, characterized in that: The control box is symmetrically equipped with a pair of handles.

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