Mechanical joint coating device for heat-shrinkable tape

Abstract

The utility model discloses a heat shrinkable tape mechanization joint coating device which comprises a bottom plate, two supporting seats are symmetrically and fixedly connected to the upper end of the bottom plate, arc-shaped grooves are formed in the upper ends of the two supporting seats, a plurality of supporting rollers are rotationally connected between the inner walls of the left side and the right side of each arc-shaped groove, and the supporting rollers are fixedly connected to the upper end of the bottom plate. The opposite ends of the rotating shafts of the two supporting rollers located at the lowermost portion both penetrate through the corresponding arc-shaped grooves and are fixedly connected through a connecting rod. The movable heating mechanism is used for carrying out uniform fire spraying and heating operation; and the bubble extrusion mechanism is installed above the two supporting seats, and a driving motor is installed on the left side of the supporting seat located on the left side. The device can effectively assist the sealing operation of the thermal shrinkage belt of the pipe body, the overall operation efficiency is improved, meanwhile, the thermal shrinkage uniformity is also improved, and the overall sealing performance after opening repairing is guaranteed by being matched with the bubble extrusion mechanism.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing technology, and in particular to a mechanized patching device for heat shrink tape. Background Technology

[0002] In the field of pipe sealing, heat shrink tape sealing is a widely used technique, especially suitable for sealing welded pipe bodies. The traditional heat shrink tape sealing process is as follows: First, the integral pipe body formed by two welded pipe bodies is preheated; next, the heat shrink tape is precisely applied to the pipe surface; then, connectors are used to secure the joints of the heat shrink tape; finally, the pipe body with the sealing tape is heated evenly and comprehensively, causing the sealing tape to shrink and thus achieving an effective seal.

[0003] Currently, the entire heat shrink tape sealing process mainly relies on manual operation. This is especially true for larger tubes, where the operation is even more difficult. Workers need to hold a spray gun and spray heat around the tube. When heating manually with a spray gun, not only is the efficiency low, but human factors also make it difficult to maintain a consistent spray gun speed and distance from the heat shrink tape. This makes it difficult to ensure uniform heating of the tube. In actual operation, local overheating or underheating often occurs. Overheating can cause the heat shrink tape to shrink excessively in that area, or even burn it, thus affecting the performance of the sealing tape. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mechanized heat shrink tape sealing device. This device can effectively assist in the heat shrink tape sealing operation of the tube, improve the overall operating efficiency, and enhance the uniformity of heat shrinkage. Combined with the bubble extrusion mechanism, it ensures the overall sealing performance after sealing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mechanized heat shrink tape patching device includes a base plate, with two support seats symmetrically fixedly connected to the upper end of the base plate. Each support seat has an arc-shaped groove at its upper end. Multiple support rollers are rotatably connected between the inner walls of the left and right sides of each arc-shaped groove. The rotating shafts of the two lowest support rollers pass through the corresponding arc-shaped grooves and are fixedly connected by a connecting rod. A movable heating mechanism is also included, used for uniform flame heating.

[0007] Preferably, a drive motor is installed on the left side of the support base located on the left side, and the output shaft of the drive motor extends into the arc-shaped groove on the left side and is fixedly connected to the rotation shaft of the support roller at the bottom of the left side portion.

[0008] Preferably, the mobile heating mechanism includes a groove formed on the upper end of the base plate, an electric telescopic rod is installed on the inner right side of the groove, a slider is fixedly connected to the telescopic end of the electric telescopic rod, and a flame head is installed on the upper end of the slider.

[0009] Preferably, the slider is slidably connected to the inner wall of the groove.

[0010] Preferably, the bubble extrusion mechanism includes an L-shaped plate fixedly connected to the upper end of the base plate. The L-shaped plate is composed of a horizontal plate and a vertical plate. A hydraulic cylinder is installed at the upper end of the horizontal plate. The telescopic end of the hydraulic cylinder passes through the horizontal plate and is fixedly connected to a U-shaped frame. A pressure roller is rotatably connected between the two vertical parts of the U-shaped frame.

[0011] Preferably, the upper end of the U-shaped frame is symmetrically fixedly connected with two guide rods, both of which pass through the horizontal plate and are slidably connected.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] The drive motor rotates the support rollers to make the tube rotate, while the electric telescopic rod pushes the flame head to move along the tube axis to spray flames. The spray range can be adjusted according to needs, and the moving speed and spray distance are stable, which greatly improves the heating uniformity, makes the heat shrink tape shrink more evenly, and the sealing effect is better. In addition, the hydraulic cylinder drives the pressure roller to press down, which can squeeze out the air bubbles between the heat shrink tape and the tube after the spraying is completed, further enhancing the sealing performance. This device realizes the mechanized operation of heat shrink tape patching, avoids the tediousness and uncertainty of manual operation, and improves work efficiency and patching quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a mechanized patching device for heat shrink tape proposed in this utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view;

[0016] Figure 3 for Figure 2 A front view illustration.

[0017] In the diagram: 1. Base plate, 2. L-shaped plate, 3. Hydraulic cylinder, 4. U-shaped frame, 5. Guide rod, 6. Pressing roller, 7. Support seat, 8. Arc groove, 9. Support roller, 10. Drive motor, 11. Connecting rod, 12. Slide groove, 13. Electric telescopic rod, 14. Slider, 15. Flame head. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-3 A mechanized patching device for heat shrinkable tape includes a base plate 1. Two support seats 7 are symmetrically fixedly connected to the upper end of the base plate 1. Each support seat 7 has an arc-shaped groove 8 at its upper end. Multiple support rollers 9 are rotatably connected between the inner walls of the left and right sides of each arc-shaped groove 8. The rotating shafts of the two lowest support rollers 9 pass through the corresponding arc-shaped grooves 8 and are fixedly connected by a connecting rod 11. A drive motor 10 is installed on the left side of the support seat 7 on the left side. The output shaft of the drive motor 10 extends into the arc-shaped groove 8 on the left side and is fixedly connected to the rotating shaft of the lowest support roller 9 on the left side.

[0020] The system also includes a movable heating mechanism for uniform flame heating. The movable heating mechanism includes a sluice 12 on the upper end of the base plate 1. An electric telescopic rod 13 is installed on the inner right side of the sluice 12. A slider 14 is fixedly connected to the telescopic end of the electric telescopic rod 13. A flame head 15 is installed on the upper end of the slider 14. The flame head 15 is existing technology and is connected to the jet pipe of the existing gas ejection system. When the flame head 15 is activated in conjunction with the gas ejection system, flame treatment can be achieved. The slider 14 is slidably connected to the inner wall of the sluice 12.

[0021] It also includes a bubble extrusion mechanism, which is installed above two support seats 7. The bubble extrusion mechanism includes an L-shaped plate 2 fixedly connected to the upper end of the base plate 1. The L-shaped plate 2 is composed of a horizontal plate and a vertical plate. A hydraulic cylinder 3 is installed at the upper end of the horizontal plate. The telescopic end of the hydraulic cylinder 3 passes through the horizontal plate and is fixedly connected to a U-shaped frame 4. A pressure roller 6 is rotatably connected between the two vertical parts of the U-shaped frame 4. Two guide rods 5 are symmetrically fixedly connected to the upper end of the U-shaped frame 4. Both guide rods 5 pass through the horizontal plate and are slidably connected.

[0022] In this invention, the welded tube is placed in the arc-shaped groove 8 on two support seats 7. Multiple support rollers 9 support the tube. The drive motor 10 is started, and its output shaft drives the lowest support roller 9 on the left side to rotate. The two lowest support rollers 9 rotate synchronously through the connecting rod 11, thereby driving the tube to rotate. At the same time, the electric telescopic rod 13 is started, and its telescopic end pushes the slider 14 to slide in the slide groove 12, driving the flame head 15 to move along the tube axis. This, together with the gas ejection system, evenly heats the rotating tube with flames.

[0023] The range of the flame can be adjusted by moving the flame head 15 according to specific needs. After the flame is applied for a period of time, the heat shrink tape is then attached to the tube body, and the joint is then attached with the connector. The above process (rotation and moving flame) is repeated. Since the moving speed is relatively uniform and the distance between the flame head 15 and the heat shrink tape does not change significantly, the heating uniformity is improved, the shrinkage uniformity is better, and the sealing effect is better.

[0024] Finally, the hydraulic cylinder 3 is activated, and its telescopic end pushes the U-shaped frame 4 downward. The pressing roller 6 then presses down, squeezing the heat shrink tape attached to the tube body. At this time, the flame head 15 and the electric telescopic rod 13 are closed. The pressing roller 6 can squeeze out the air bubbles between the heat shrink tape and the tube body, further improving the sealing performance and completing the mechanized patching operation of the heat shrink tape.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mechanized patching device for heat shrink tape, characterized in that, include: The base plate (1) has two support seats (7) symmetrically fixedly connected to its upper end. The upper ends of the two support seats (7) are provided with arc grooves (8). Multiple support rollers (9) are rotatably connected between the inner walls of the left and right sides of each arc groove (8). The rotating shafts of the two support rollers (9) located at the bottom pass through the corresponding arc grooves (8) and are fixedly connected by connecting rods (11). A mobile heating mechanism, used for uniform flame heating operation; A bubble extrusion mechanism is mounted above two support seats (7).

2. The mechanized patching device for heat shrink tape according to claim 1, characterized in that, A drive motor (10) is installed on the left side of the support base (7) located on the left side. The output shaft of the drive motor (10) extends into the arc groove (8) on the left side and is fixedly connected to the rotation shaft of the support roller (9) at the bottom of the left side.

3. The mechanized patching device for heat shrink tape according to claim 1, characterized in that, The mobile heating mechanism includes a slide groove (12) opened on the upper end of the base plate (1), an electric telescopic rod (13) is installed on the inner wall of the right side of the slide groove (12), a slider (14) is fixedly connected to the telescopic end of the electric telescopic rod (13), and a flame head (15) is installed on the upper end of the slider (14).

4. The mechanized patching device for heat shrink tape according to claim 3, characterized in that, The slider (14) is slidably connected to the inner wall of the groove (12).

5. The mechanized patching device for heat shrink tape according to claim 1, characterized in that, The bubble extrusion mechanism includes an L-shaped plate (2) fixedly connected to the upper end of the base plate (1). The L-shaped plate (2) is composed of a horizontal plate and a vertical plate. A hydraulic cylinder (3) is installed at the upper end of the horizontal plate. The telescopic end of the hydraulic cylinder (3) passes through the horizontal plate and is fixedly connected to a U-shaped frame (4). A pressure roller (6) is rotatably connected between the two vertical parts of the U-shaped frame (4).

6. The mechanized patching device for heat shrink tape according to claim 5, characterized in that, The upper end of the U-shaped frame (4) is symmetrically fixedly connected with two guide rods (5), both of which pass through the horizontal plate and are slidably connected.

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