PVC pipe welding device

Abstract

The utility model relates to pipeline welding technical field, concretely is a kind of PVC pipeline welding device.Its rack, mounting disc, rotating disc, heating pipe, heating head and two three-jaw chucks.Mounting disc is slidably arranged on the upper end of rack, and electric push rod for driving mounting disc to move is installed on rack;Rotating disc is rotatably installed on rack, and power assembly for driving rotating disc to rotate is installed on rack;Perforation is formed in mounting disc and rotating disc;Two three-jaw chucks are respectively installed on mounting disc and rotating disc;Heating pipe is installed on mounting disc;Heating head is installed on rotating disc.The utility model integrates the cleaning action of heating component in welding butt joint procedure, when two mutually insert in final station, heating head and heating pipe occur scraping to peel off residue, and this design greatly reduces and facilitates subsequent cleaning work.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding technology, and in particular to a PVC pipe welding device. Background Technology

[0002] PVC (polyvinyl chloride) pipes are widely used in building water supply and drainage, municipal engineering, agricultural irrigation, and chemical fluid transportation due to their advantages such as corrosion resistance, light weight, low cost, and easy installation. The quality of pipe connections directly determines the sealing performance, strength, and service life of the entire pipeline system. Currently, permanent connections of PVC pipes mainly adopt thermofusion socket welding technology. The principle is to simultaneously heat the outer wall of the pipe spigot and the inner wall of the fitting socket to a molten state using a special heating tool, then quickly insert the spigot into the socket and maintain a certain pressure. After cooling, a strong, integrated connection is formed.

[0003] Traditional hot-melt welding operations, especially for larger diameter welds or in batch applications, typically suffer from the following technical drawbacks: 1. They heavily rely on manual experience, with insertion depth and alignment entirely dependent on the worker's visual observation and touch, resulting in significant quality fluctuations and a tendency for defects such as over-melting or misalignment. 2. Traditional heating plates are integral structures, and after repeated use, PVC residue easily adheres to their surface. After use, this residue accumulates in the inner cavity, making cleaning difficult and affecting subsequent hot-melt operations. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a PVC pipe welding device.

[0005] The technical solution of this utility model is a PVC pipe welding device, which includes a frame, a mounting plate, a rotating plate, a heating tube, a heating head, and two three-jaw chucks.

[0006] The mounting plate is slidably mounted on the upper end of the frame, and an electric push rod for driving the mounting plate to move is mounted on the frame; the rotating plate is rotatably mounted on the frame, and a power component for driving the rotating plate to rotate is mounted on the frame; both the mounting plate and the rotating plate have through holes; two three-jaw chucks are respectively mounted on the mounting plate and the rotating plate; the heating tube is mounted on the mounting plate; and the heating head is mounted on the rotating plate.

[0007] Preferably, guide tube one and guide tube two are respectively provided on the outer side of the two three-jaw chucks. The ends of guide tube one and guide tube two are chamfered. Guide tube one and guide tube two are respectively connected to the mounting plate and the rotating plate.

[0008] Preferably, the power assembly includes a servo motor, a first gear, and a second gear. The servo motor is mounted on the frame, the first gear is connected to the output shaft of the servo motor, and the second gear is mounted on the rotating shaft of the rotating disk and meshes with the first gear.

[0009] Preferably, the single rotation angle of the rotating disk is degrees, and the rotating disk is only limited to reciprocating rotation and does not support continuous rotation.

[0010] Preferably, the mounting plate is provided with a heat insulation jacket, the heating head is located inside the heat insulation jacket, and a connecting bracket is connected between the outer end of the heating head and the inner wall of the heat insulation jacket; the outer side of the heating tube is provided with heat insulation material.

[0011] Preferably, the inner diameter of the heat insulation jacket is larger than the outer diameter of the heating tube.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] 1. This equipment uses an electric push rod to drive the installation plate to move, a servo motor to drive the rotating plate to rotate, and a three-jaw chuck to automatically clamp the pipe, realizing the automatic heating and butt welding process of the pipe. Compared with manual insertion operation, it reduces manual intervention, reduces labor intensity, and improves work efficiency.

[0014] 2. The cleaning action of the heating components (heating head and heating tube) is integrated into the welding process. When the two are inserted into each other at the final station, the heating head and heating tube scrape to remove the residue. This design greatly simplifies the subsequent cleaning work. Attached Figure Description

[0015] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting plate and rotating plate in this utility model.

[0017] Reference numerals: 1. Frame; 2. Control panel; 31. Mounting plate; 32. Rotating plate; 301. Perforation; 4. Servo motor; 5. Gear 1; 6. Gear 2; 7. Heating tube; 8. Heating head; 9. Heat insulation jacket; 10. Three-jaw chuck; 11. Guide tube 1; 12. Guide tube 2; 13. Connecting frame; 15. Electric push rod. Detailed Implementation

[0018] Example 1; as Figures 1-3 As shown, the PVC pipe welding device proposed in this embodiment includes a frame 1, a mounting plate 31, a rotating plate 32, a heating tube 7, a heating head 8, and two three-jaw chucks 10.

[0019] Mounting disk 31 is slidably mounted on the upper end of frame 1. An electric push rod 15 for driving the movement of mounting disk 31 is mounted on frame 1. Rotating disk 32 is rotatably mounted on frame 1. A power assembly for driving the rotation of rotating disk 32 is mounted on frame 1. The power assembly includes a servo motor 4, gear 5, and gear 6. Servo motor 4 is mounted on frame 1. Gear 5 is connected to the output shaft of servo motor 4. Gear 6 is mounted on the rotating shaft of rotating disk 32 and meshes with gear 5. The single rotation angle of rotating disk 32 is 180 degrees. It only restricts reciprocating rotation and does not support continuous rotation; both the mounting plate 31 and the rotating plate 32 have through holes 301; two three-jaw chucks 10 are respectively mounted on the mounting plate 31 and the rotating plate 32; the heating tube 7 is mounted on the mounting plate 31, and the outside of the heating tube 7 is provided with heat insulation material; the heating head 8 is mounted on the rotating plate 32, and the mounting plate 31 is provided with a heat insulation jacket 9. The heating head 8 is located inside the heat insulation jacket 9, and a connecting bracket 13 is connected between the outer end of the heating head 8 and the inner wall of the heat insulation jacket 9. The inner diameter of the heat insulation jacket 9 is larger than the outer diameter of the heating tube 7.

[0020] Furthermore, a control panel 2 is installed on rack 1. The control panel 2 uses a combination of HMI (Human Machine Interface) and microcontroller. The HMI provides users with an intuitive and user-friendly operating interface, allowing them to easily issue various commands by touching the screen.

[0021] The working principle of this technical solution is as follows:

[0022] The operator inserts the "thick pipe" (referring to the socket end or a larger diameter pipe) to be welded through the perforation 301 on one side of the mounting plate 31 until its end is close to the heating head 8; then inserts the thin pipe through the perforation 301 on one side of the rotating plate 32 until its end is close to the heating tube 7; then the two three-jaw chucks 10 are activated respectively, and the two three-jaw chucks 10 will retract their jaws simultaneously until they firmly clamp the two pipe sections.

[0023] After the clamping operation is completed, the electric push rod 15 is activated. The push rod of the electric push rod 15 extends and drives the entire mounting plate 31 to move towards the rotating plate 32. During this process, the heating head 8, which is fixed on the rotating plate 32, is precisely inserted into the inner cavity of the end of the thick tube. The end of the thin tube is simultaneously fitted into the outer wall of the heating tube 7, which is fixed on the mounting plate 31. Both the heating tube 7 and the heating head 8 have integrated high-efficiency electric heating elements, which are preheated to the ideal melting temperature of PVC material before or at the moment of contact with the tube. After the end of the tube is tightly attached to the heating component, a uniform molten layer is formed. The heat insulation jacket 9 is set to wrap around the outside of the heating head 8, which effectively prevents the operator from accidentally touching it. Similarly, the heat insulation material on the outside of the heating tube 7 also plays a role in heat insulation.

[0024] After the preset heating time is reached, the electric push rod 15 reverses and pulls the mounting plate 31 back to its initial position. Then, the servo motor 4 is started. The servo motor 4 transmits power to the rotating shaft of the rotating disk 32 through the meshing gear 5 and gear 6, thereby driving the rotating disk 32 to rotate precisely 180 degrees. This rotates the thick and thin tubes to a position where they are axially aligned with each other, and the heating head 8 and heating tube 7 used to heat the pipes are also rotated to a position where they are axially aligned with each other. After the station switching is completed, the electric push rod 15 drives the mounting plate 31 to move towards the rotating disk 32 again. At this time, the thin tube, whose end is already in a molten state, is smoothly pushed into the socket of the thick tube, which is also in a molten state. Under appropriate pushing pressure, the molten PVC materials of the two parts fuse together.

[0025] At the same time, the heating head 8 is inserted into the heating tube 7 that moves with the mounting plate 31. Since the inner diameter of the heat insulation jacket 9 is larger than the outer diameter of the heating tube 7, this insertion will not be interfered with. Under the docking pressure, the outer wall of the heating head 8 scrapes against the inner wall of the heating tube 7, thereby peeling off the PVC coking or oxide layer that may have adhered to the outer wall of the heating head 8 and the inner wall of the heating tube 7 during the previous heating process. If these residues are not removed, they will contaminate the new pipe during the next heating and affect the welding quality. Before the next use, the outer ends of the heating head 8 and the heating tube 7 should be checked for any residues. If there are any residues, they should be cleaned manually with tools.

[0026] Example 2; as Figure 1 and Figure 2 As shown, in this embodiment of the PVC pipe welding device, compared with the first embodiment, the outer sides of the two three-jaw chucks 10 are respectively provided with guide tube 11 and guide tube 2 12. The ends of guide tube 11 and guide tube 2 12 are both provided with chamfers. Guide tube 11 and guide tube 2 12 are respectively connected to the mounting plate 31 and the rotating plate 32.

[0027] In this embodiment, the chamfer design at the inlet of the guide tube can greatly tolerate errors. Even if the end of the tube is slightly deviated, it can be smoothly introduced. Under the constraint of the long guide tube, the tube naturally moves along the correct axial path, smoothly passes through the perforation 301 in sequence, and finally reaches the predetermined position to be clamped by the three-jaw chuck 10; thus achieving the guiding function.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A PVC pipe welding device, characterized in that, It includes a frame (1), a mounting plate (31), a rotating plate (32), a heating tube (7), a heating head (8), and two three-jaw chucks (10); The mounting plate (31) is slidably mounted on the upper end of the frame (1), and an electric push rod (15) for driving the mounting plate (31) to move is mounted on the frame (1); the rotating plate (32) is rotatably mounted on the frame (1), and a power component for driving the rotating plate (32) to rotate is mounted on the frame (1); both the mounting plate (31) and the rotating plate (32) are provided with through holes (301); two three-jaw chucks (10) are respectively mounted on the mounting plate (31) and the rotating plate (32); the heating tube (7) is mounted on the mounting plate (31); and the heating head (8) is mounted on the rotating plate (32).

2. The PVC pipe welding device according to claim 1, characterized in that, Two three-jaw chucks (10) are respectively provided with guide tube one (11) and guide tube two (12) on their outer sides. The ends of guide tube one (11) and guide tube two (12) are chamfered. Guide tube one (11) and guide tube two (12) are respectively connected to mounting plate (31) and rotating plate (32).

3. The PVC pipe welding device according to claim 1, characterized in that, The power assembly includes a servo motor (4), a first gear (5), and a second gear (6). The servo motor (4) is mounted on the frame (1), the first gear (5) is connected to the output shaft of the servo motor (4), and the second gear (6) is mounted on the rotating shaft of the rotating disk (32) and meshes with the first gear (5).

4. A PVC pipe welding device according to claim 3, characterized in that, The single rotation angle of the rotating disk (32) is 180 degrees. The rotating disk (32) is only limited to reciprocating rotation and does not support continuous rotation.

5. A PVC pipe welding device according to claim 1, characterized in that, The mounting plate (31) is provided with a heat insulation jacket (9), the heating head (8) is located inside the heat insulation jacket (9), and a connecting bracket (13) is connected between the outer end of the heating head (8) and the inner wall of the heat insulation jacket (9); the outer side of the heating tube (7) is provided with heat insulation material.

6. A PVC pipe welding device according to claim 1, characterized in that, The inner diameter of the heat insulation jacket (9) is larger than the outer diameter of the heating tube (7).

Images