Cooling device of plastic pipeline hot melting welding machine

By designing a cooling device that includes a slider and an electric telescopic rod, the problem of uneven cooling caused by uneven distance between the nozzle and the pipe in the prior art is solved, and uniform cooling of plastic pipes after welding is achieved.

CN224145153UActive Publication Date: 2026-04-21HANGZHOU DERUIBAO PIPING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU DERUIBAO PIPING TECH
Filing Date
2025-05-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing plastic pipe hot melt welding machine's cooling device has uneven nozzle-to-pipe distance when welding pipes of different diameters, resulting in uneven cooling.

Method used

A cooling device comprising a base, a slider, a pressure rod, a horizontal plate, a vertical plate, and a nozzle is designed. The slider and pressure rod are driven by an electric telescopic rod to form a square groove around the nozzle, ensuring that the nozzle is aligned with the center of the pipe and achieving uniform cooling.

Benefits of technology

This ensures that the distance between each nozzle and the pipe is the same when welding pipes of different diameters, thus achieving uniform cooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooling device of a plastic pipeline hot melting welding machine, which comprises a base, the top of the base is fixedly connected with a first support frame, the first support frame is internally provided with two first chutes, and the two first chutes are symmetrically distributed. According to the cooling device of the plastic pipeline hot melting welding machine, two plastic pipelines are placed on the first supporting frame and the second supporting frame, after welding is finished, an electric telescopic rod is started to drive a sliding block to move, the sliding block drives a pressing rod to press the plastic pipelines, and a square groove is defined by second sliding grooves in two transverse plates and a vertical plate; the sliding rods can slide back and forth in the square grooves, the included angle between the transverse plate and the pressing rods is 45 degrees, a square is defined by the two pressing rods and the first supporting frame, after the pressing rods press the plastic pipeline, the position where the square grooves are located is the circle center position of the plastic pipeline, and at the moment, the positions, away from the plastic pipeline, of the nozzles are the same. And uniform cooling is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of plastic pipe hot melt welding machine, and more specifically, to a cooling device for a plastic pipe hot melt welding machine. Background Technology

[0002] The working principle of a plastic pipe hot melt welding machine is to heat and melt the joints of two plastic pipes to be welded, then use external force to push the two plastic pipes towards each other, fix them in position, and allow the two molten joints to cool and solidify into one. Currently, existing plastic pipe hot melt welding machines on the market use air cooling to cool the pipes after the plastic has been molten and joined.

[0003] Some existing cooling devices use a ring of nozzles at the joint of the plastic pipe to spray cooling air. However, since the pipes to be welded vary in diameter, the nozzles are eccentrically positioned for smaller pipes, resulting in uneven cooling due to the varying distances between each nozzle and the plastic pipe. Therefore, we provide a cooling device for a plastic pipe hot melt welding machine. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for a plastic pipe hot melt welding machine to solve the problems mentioned in the background art.

[0005] Some existing cooling devices use a ring of nozzles at the joints of plastic pipes to spray cooling air. However, since the pipes to be welded vary in diameter, if the pipe is small, the nozzles are eccentrically positioned, resulting in uneven cooling because each nozzle is at a different distance from the plastic pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cooling device for a plastic pipe hot melt welding machine includes a base. A first support frame is fixedly connected to the top of the base. The first support frame has a first groove inside. There are two first grooves, which are symmetrically distributed. A slider is slidably connected inside the first groove. A pressure rod is fixedly connected to the outside of the slider. A horizontal plate is fixedly connected to the outside of the slider and below the pressure rod. A vertical plate is arranged between the two horizontal plates. The vertical plate is fixedly connected to the first support frame. A second groove is opened inside both the horizontal plate and the vertical plate. A slide rod is slidably connected inside the second groove. An air pipe is fixedly connected to the outside of the slide rod. A nozzle is fixedly connected to the outside of the air pipe.

[0008] Preferably, the slide bar has a square cross-section, and the outer wall of the slide bar is in contact with the inner wall of the second slide groove.

[0009] Preferably, a second support frame is fixedly connected to the top of the base, and the second support frame is used in conjunction with the first support frame.

[0010] Preferably, an electric telescopic rod is fixedly connected to the outside of the first support frame. The output shaft of the electric telescopic rod passes vertically through the first support frame and extends into the interior of the first sliding groove. The output shaft of the electric telescopic rod is slidably connected to the first support frame, and the slider is fixedly connected to the output end of the electric telescopic rod.

[0011] Preferably, the slider has a guide rod slidably connected inside, the guide rod is fixedly connected to the first support frame, and there are two guide rods in total, which are symmetrically distributed.

[0012] Preferably, the first support frame is externally fixedly connected to a control panel, and the electric telescopic rod is electrically connected to the control panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Two plastic pipes are placed on the first and second support frames. After welding, the electric telescopic rod is activated to move the slider. The slider moves the pressure rod to press down on the plastic pipes. The second groove on the two horizontal plates and one vertical plate forms a square groove. The slider can slide back and forth in this square groove. The horizontal plate and the pressure rod are at a 45-degree angle. The two pressure rods and the first support frame form a square. After the plastic pipes are placed in the first support frame and the pressure rods press the plastic pipes down, the position of the square groove is the center of the plastic pipe. At this time, the distance between each nozzle and the plastic pipe is the same, ensuring uniform cooling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the second support frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention when cooling a large plastic pipe;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention when cooling a small plastic pipe.

[0019] The following are the labels in the diagram: 1. Base; 2. First support frame; 3. First slide groove; 4. Slider; 5. Pressure rod; 6. Horizontal plate; 7. Vertical plate; 8. Second slide groove; 9. Slide rod; 10. Air pipe; 11. Nozzle; 12. Electric telescopic rod; 13. Guide rod; 14. Second support frame; 15. Control panel. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 A cooling device for a plastic pipe hot melt welding machine includes a base 1. A first support frame 2 is fixedly connected to the top of the base 1. The first support frame 2 has two first sliding grooves 3 symmetrically distributed inside. A slider 4 is slidably connected inside the first sliding groove 3. A pressure rod 5 is fixedly connected to the outside of the slider 4. A horizontal plate 6 is fixedly connected to the outside of the slider 4 and below the pressure rod 5. A vertical plate 7 is positioned between the two horizontal plates 6 and fixedly connected to the first support frame 2. A second sliding groove 8 is formed inside both the horizontal plate 6 and the vertical plate 7. The second sliding grooves 8 on the two horizontal plates 6 and one vertical plate 7 form a square groove, within which the sliding rod 9 can move. The sliding plate 6 and the pressure rod 5 are at a 45-degree angle. The two pressure rods 5 are crossed to prevent them from touching each other. The two pressure rods 5 and the first support frame 2 form a square. After the plastic pipe is placed into the first support frame 2, the pressure rod 5 presses the plastic pipe tightly. The position of the square groove is the center of the plastic pipe. At this time, the distance between each nozzle 11 and the plastic pipe is the same, which ensures uniform cooling. The sliding rod 9 is slidably connected inside the second sliding groove 8. The air pipe 10 is fixedly connected to the outside of the sliding rod 9. The nozzle 11 is fixedly connected to the outside of the air pipe 10. The air pipe 10 is connected to the air outlet of the fan through a hose. The cooling air comes into contact with the connection of the two plastic pipes through the nozzle 11 to achieve the purpose of cooling.

[0022] Furthermore, the slide bar 9 has a square cross-section, and the outer wall of the slide bar 9 fits against the inner wall of the second slide groove 8 to ensure the overall stability of the slide bar 9.

[0023] Furthermore, a second support frame 14 is fixedly connected to the top of the base 1. The second support frame 14 works in conjunction with the first support frame 2 to support the plastic pipe. Both the first support frame 2 and the second support frame 14 have a 90-degree V-groove on their tops.

[0024] Furthermore, an electric telescopic rod 12 is fixedly connected to the outside of the first support frame 2. The output shaft of the electric telescopic rod 12 passes vertically through the first support frame 2 and extends into the interior of the first slide groove 3. The output shaft of the electric telescopic rod 12 is slidably connected to the first support frame 2. The slider 4 is fixedly connected to the output end of the electric telescopic rod 12. The electric telescopic rod 12 drives the slider 4 to move, and the slider 4 drives the pressure rod 5 and the cross plate 6 to move.

[0025] Furthermore, the slider 4 is internally slidably connected with a guide rod 13, which is fixedly connected to the first support frame 2. There are two guide rods 13, which are symmetrically distributed. The slider 4 slides back and forth in the first slide groove 3. The guide rod 13 ensures the stability of the slider 4 when it slides, and at the same time, it plays a role in limiting the slider 4 so that the slider 4 will not detach from the first slide groove 3.

[0026] Furthermore, the first support frame 2 is externally fixedly connected to a control panel 15, and the electric telescopic rod 12 is electrically connected to the control panel 15. The electric telescopic rod 12 is controlled through the control panel 15. The electrical equipment is powered by an external power source. This is existing technology and will not be described in detail.

[0027] The steps for using this utility model are as follows: When using the cooling device of this plastic pipe hot melt welding machine, two plastic pipes are placed on the first support frame 2 and the second support frame 14. After welding, the electric telescopic rod 12 is activated to drive the slider 4 to move. The slider 4 drives the pressure rod 5 to press down on the plastic pipe. The second sliding groove 8 on the two horizontal plates 6 and the vertical plate 7 forms a square groove. The sliding rod 9 can slide back and forth in this square groove. The horizontal plate 6 and the pressure rod 5 are at a 45-degree angle. The two pressure rods 5 are arranged crosswise to prevent collision. The two pressure rods 5 and the first support frame 2 form a square. After the plastic pipe is placed in the first support frame 2 and the pressure rod 5 presses the plastic pipe, the position of the square groove is the center position of the plastic pipe. At this time, the distance between each nozzle 11 and the plastic pipe is the same, ensuring uniform cooling.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device of a plastic pipe hot melt welding machine, comprising a base (1), the top of the base (1) is fixedly connected with a first support frame (2), characterized in that: The first support frame (2) has a first groove (3) inside. There are two first grooves (3), which are symmetrically distributed. A slider (4) is slidably connected inside the first groove (3). A pressure rod (5) is fixedly connected to the outside of the slider (4). A horizontal plate (6) is fixedly connected to the outside of the slider (4) and below the pressure rod (5). A vertical plate (7) is provided between the two horizontal plates (6). The vertical plate (7) is fixedly connected to the first support frame (2). A second groove (8) is provided inside both the horizontal plate (6) and the vertical plate (7). A slide rod (9) is slidably connected inside the second groove (8). An air pipe (10) is fixedly connected to the outside of the slide rod (9). A nozzle (11) is fixedly connected to the outside of the air pipe (10).

2. A cooling device for a hot melt plastic pipe welding machine according to claim 1, characterized in that: The slide bar (9) has a square cross-section, and the outer wall of the slide bar (9) is in contact with the inner wall of the second slide groove (8).

3. A cooling device for a hot melt plastic pipe welding machine according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a second support frame (14), which works in conjunction with the first support frame (2).

4. The cooling device of a hot melt plastic pipe welding machine according to claim 1, characterized in that: An electric telescopic rod (12) is fixedly connected to the outside of the first support frame (2). The output shaft of the electric telescopic rod (12) passes vertically through the first support frame (2) and extends into the interior of the first slide groove (3). The output shaft of the electric telescopic rod (12) is slidably connected to the first support frame (2). The slider (4) is fixedly connected to the output end of the electric telescopic rod (12).

5. The cooling device of a hot melt plastic pipe welding machine according to claim 1, characterized in that: The slider (4) is internally connected to a guide rod (13), which is fixedly connected to the first support frame (2). There are two guide rods (13), which are symmetrically distributed.

6. The cooling device for a plastic pipe hot melt welding machine according to claim 4, characterized in that: The first support frame (2) is externally fixedly connected to a control panel (15), and the electric telescopic rod (12) is electrically connected to the control panel (15).