Longitudinal welded pipe bilateral heating equipment

Abstract

The utility model discloses a longitudinal welded pipe bilateral heating device which comprises a base, the upper surface of the base is fixedly connected with a fixing frame, one side of the fixing frame is fixedly connected with a connecting column, the outer side of the connecting column is fixedly connected with a plurality of groups of springs, and the top ends of the plurality of groups of springs are fixedly connected with supporting plates. The multiple sets of springs are internally provided with telescopic components enabling the supporting plates to move horizontally, the outer sides of the multiple supporting plates are sleeved with welding pipes, and one ends of the multiple supporting plates are fixedly connected with positioning columns. According to the welding pipe heating device, welding pipes of different sizes can be clamped and fixed, meanwhile, the supporting plates cannot move after clamping the welding pipes, the heating efficiency of the welding pipes is improved, the two sides of the welding pipes can be heated at the same time, and therefore the heating time of the welding pipes can be shortened, the heating efficiency of the welding pipes is further improved, and the welding pipe heating efficiency is improved. And a worker can change the position of the heating equipment conveniently, and the worker can move the heating equipment conveniently.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe technology, and in particular to a double-sided heating device for straight seam welded pipes. Background Technology

[0002] Straight seam welded pipe is a type of welded steel pipe. It is made by welding hot-rolled steel plates, cold-rolled steel plates, or steel strips onto a welding machine to form a straight seam. It is named for the straight line formed by the weld joint.

[0003] Currently, some welded pipe heating devices are used because the welded pipes have different sizes, and the existing heating equipment can only fix welded pipes of a fixed size, which is not convenient for fixing welded pipes of different thicknesses, thus resulting in a slower heating rate of the welded pipes. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a double-sided heating device for straight seam welded pipes.

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

[0006] A double-sided heating device for straight seam welded pipe includes a base, a fixing frame fixedly connected to the upper surface of the base, a connecting column fixedly connected to one side of the fixing frame, multiple sets of springs fixedly connected to the outer side of the connecting column, a support plate fixedly connected to the top of each set of springs, and a telescopic component for horizontal movement of the support plate provided inside each set of springs. A welded pipe is sleeved on the outer side of each of the support plates, and a positioning column is fixedly connected to one end of each of the support plates. A cross-shaped limiting frame is provided at one end of the connecting column, with multiple limiting holes on each side of the limiting frame, and the positioning column is inserted into the limiting holes. An elastic component for retracting the support plate is provided on one side of the fixing frame, and a heating component for double-sided heating of the welded pipe is provided on the upper surface of the base.

[0007] As a further embodiment of this utility model, the elastic component includes an elastic sheet bent into an arc shape. The elastic sheet is disposed on one side of the fixing frame, and the center point of the elastic sheet is fixed to the fixing frame. The support plate is located inside the elastic sheet. Both ends of the elastic sheet are fixedly connected to fixing blocks. One side of one of the fixing blocks is rotatably connected to a screw, and the screw passes through the other fixing block and is threadedly connected to it.

[0008] As a further embodiment of this utility model, the telescopic component is a telescopic rod, which is disposed within multiple sets of springs. One end of the telescopic part of the telescopic rod is fixed to the support plate, and the other end of the telescopic rod is fixed to the connecting column.

[0009] As a further embodiment of this utility model, the heating assembly includes a connecting frame, and two sliding grooves are formed on the upper surface of the base. The connecting frame is slidably connected to the sliding grooves. A motor is fixedly connected to one side of the fixed frame. One end of the motor output shaft passes through the fixed frame and is fixed to a threaded rod by a coupling. The threaded rod passes through the connecting frame and is threadedly connected to the connecting frame. A T-shaped frame is fixedly connected to the top of the connecting frame. Arc-shaped plates are fixedly connected to both ends of the T-shaped frame. Multiple electric heating tubes are fixedly connected to one side of the arc-shaped plates.

[0010] As a further embodiment of this utility model, the welded pipe is located at the center between the two arc-shaped plates, and the electric heating pipe is located on the side of the arc-shaped plate closer to the welded pipe.

[0011] As a further improvement of this invention, the number of springs in each set is six.

[0012] As a further improvement of this utility model, the base is fixedly connected to four corners at its bottom with casters.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By using the support plates and limiting frames in conjunction, multiple support plates are tightened through elastic components. Then, the welded pipe is placed on the outside of the multiple support plates. After the support plates are no longer tightened, the support plates will clamp and fix the welded pipe from the inside under the action of the spring. Then, the positioning pins on the support plates are inserted into the limiting holes on the limiting frames to fix the support plates. This allows for clamping and fixing of welded pipes of different sizes. At the same time, the support plates will not move after clamping the welded pipe, thus improving the heating efficiency of the welded pipe.

[0015] 2. By setting up the heating component, the heating component can heat both sides of the welded pipe simultaneously during the movement, thereby reducing the heating time of the welded pipe and further improving the heating efficiency of the welded pipe.

[0016] 3. With the addition of casters, staff can move the base by pushing it, making it easy to change the position of the heating equipment and move it around. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the front side of a double-sided heating device for straight seam welded pipe proposed in this utility model;

[0018] Figure 2 This is an enlarged structural diagram of section A of a double-sided heating device for straight seam welded pipe proposed in this utility model;

[0019] Figure 3This is a partial cross-sectional view of a double-sided heating device for straight seam welded pipe proposed in this utility model.

[0020] In the diagram: 1. Connecting frame; 2. Threaded rod; 3. Welded pipe; 4. Motor; 5. Fixing frame; 6. Base; 7. Caster wheel; 8. Limiting frame; 9. Limiting hole; 10. Spring; 11. Arc plate; 12. Electric heating element; 13. Positioning post; 14. Telescopic rod; 15. Elastic sheet; 16. Screw; 17. Fixing block; 18. Support plate; 19. Connecting post. Detailed Implementation

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0022] Reference Figures 1-3 A double-sided heating device for straight seam welded pipe includes a base 6. A fixing frame 5 is bolted to the upper surface of the base 6. A connecting column 19 is welded to one side of the fixing frame 5. Multiple sets of springs 10 are welded to the outer side of the connecting column 19. A support plate 18 is welded to the top of each set of springs 10. Each set of springs 10 has a telescopic component that allows the support plate 18 to move horizontally. A welded pipe 3 is sleeved on the outer side of the multiple support plates 18. A positioning column 13 is welded to one end of each support plate 18. A cross-shaped limiting frame 8 is provided at one end of the connecting column 19. Multiple limiting holes 9 are opened on multiple sides of the limiting frame 8, and the positioning column 13 is inserted into the limiting holes 9. An elastic component for contracting the support plate 18 is provided on one side of the fixing frame 5. The upper surface of the base 6 is provided with a heating component for bilateral heating of the welded pipe 3. The elastic component contracts multiple support plates 18, causing the support plates 18 to compress the spring 10. Then, the welded pipe 3 is placed on the outside of the multiple support plates 18. Then, the support plates 18 are reset and moved under the force of the spring 10, so that the support plates 18 clamp the welded pipe 3 from the inside. Then, the positioning pins 13 on the support plates 18 are inserted into the corresponding limiting holes 9 on the limiting frame 8 to fix the position of the support plates 18. This allows for clamping and fixing of welded pipes 3 of different sizes. At the same time, the support plates 18 will not move after clamping the welded pipe 3, thus improving the heating efficiency of the welded pipe 3.

[0023] In this invention, the elastic component includes an elastic sheet 15 bent into an arc shape, which is disposed on one side of the fixing frame 5, and the center point of the elastic sheet 15 is fixed to the fixing frame 5. A support plate 18 is located inside the elastic sheet 15. Fixing blocks 17 are welded to both ends of the elastic sheet 15. A screw 16 is rotatably connected to one side of one of the fixing blocks 17, and the screw 16 passes through the other fixing block 17 and is threadedly connected to it. The telescopic component is a telescopic rod 14, which is disposed within multiple sets of springs 10. One end of the telescopic part of the telescopic rod 14 is fixed to the support plate 18, and the other end of the telescopic rod 14 is fixed to the connecting column 19. First, rotate screw 16. Screw 16 will move by engaging with the thread of one of the fixing blocks 17, thereby causing the elastic plate 15 to contract. During the contraction process, the elastic plate 15 will squeeze the support plate 18 and move it towards the connecting column 19, thereby contracting multiple support plates 18. At the same time, the support plates 18 will squeeze the telescopic rod 14 to contract, ensuring that the support plates 18 move horizontally. Reverse screw 16 to reset the fixing block 17 that is engaged with the thread of screw 16, so that the elastic plate 15 will return to its original state under its own elastic force, thereby allowing the support plate 18 to return to its original state under the force of spring 10.

[0024] Specifically, the heating assembly includes a connecting frame 1. Two sliding grooves are formed on the upper surface of the base 6. The connecting frame 1 is slidably connected to the sliding grooves. A motor 4 is bolted to one side of a fixed frame 5. One end of the output shaft of the motor 4 passes through the fixed frame 5 and is fixed to a threaded rod 2 via a coupling. The threaded rod 2 passes through the connecting frame 1 and is threadedly connected to the connecting frame 1. A T-shaped frame is bolted to the top of the connecting frame 1. Arc-shaped plates 11 are welded to both ends of the T-shaped frame. Multiple electric heating tubes 12 are bolted to one side of the arc-shaped plates 11. A welded tube 3 is located at the center between two arc-shaped plates 11, and the electric heating tubes 12 are located on the side of the arc-shaped plates 11 closest to the welded tube 3. The motor is started. 4. The motor 4 drives the threaded rod 2 to rotate, and the threaded rod 2 drives the connecting frame 1 to move along the slide. The connecting frame 1 will drive the two arc plates 11 to move through the T-shaped frame, so that the electric heating tubes 12 on the two arc plates 11 can heat both sides of the welded pipe 3 at the same time, thereby reducing the heating time of the welded pipe 3 and further improving the heating efficiency of the welded pipe 3. There are six sets of multiple springs 10. The bottom of the base 6 is fixed with universal wheels 7 by bolts at the four corners. The staff can push the base 6 to move through the universal wheels 7, so as to facilitate the staff to change the position of the heating equipment and move the heating equipment.

[0025] Working principle: When needed, first turn screw 16. Screw 16 moves by engaging with one of the fixing blocks 17, causing the elastic plate 15 to contract. During contraction, the elastic plate 15 presses the support plate 18 towards the connecting post 19. The support plate 18 then compresses the spring 10, causing multiple support plates 18 to contract. Simultaneously, the support plates 18 compress the telescopic rod 14, ensuring horizontal movement of the support plates 18. Then, the welded pipe 3 is placed on the outside of the multiple support plates 18. Next, reverse screw 16, causing the fixing block 17, which engages with screw 16, to reset. This allows the elastic plate 15 to return to its original position under its own elastic force. At this time, the support plates 18 will move under the force of the spring 10. The support plate 18 is moved to clamp the welded pipe 3 from inside the welded pipe 3. Then, the positioning pin 13 on the support plate 18 is inserted into the corresponding limiting hole 9 on the limiting frame 8 to fix the position of the support plate 18. This allows for clamping and fixing of welded pipes 3 of different sizes. At the same time, the support plate 18 will not move after clamping the welded pipe 3, which improves the heating efficiency of the welded pipe 3. Then, the motor 4 is started, and the motor 4 drives the threaded rod 2 to rotate. The threaded rod 2 drives the connecting frame 1 to move along the slide groove. The connecting frame 1 will drive the two arc plates 11 to move through the T-shaped frame, so that the electric heating tubes 12 on the two arc plates 11 can heat both sides of the welded pipe 3 at the same time, thereby reducing the heating time of the welded pipe 3 and further improving the heating efficiency of the welded pipe 3.

[0026] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided heating device for straight seam welded pipes, comprising a base (6), characterized in that, A fixing frame (5) is fixedly connected to the upper surface of the base (6). A connecting column (19) is fixedly connected to one side of the fixing frame (5). Multiple sets of springs (10) are fixedly connected to the outer side of the connecting column (19). A support plate (18) is fixedly connected to the top of each set of springs (10). A telescopic component is provided inside each set of springs (10) to allow the support plate (18) to move horizontally. A welded pipe (3) is sleeved on the outer side of each set of support plates (18). A positioning column (13) is fixedly connected to one end of each set of support plates (18). A cross-shaped limiting frame (8) is provided at one end of the connecting column (19). Multiple limiting holes (9) are provided on the multiple sides of the limiting frame (8). The positioning column (13) is inserted into the limiting hole (9). An elastic component for contracting the support plate (18) is provided on one side of the fixing frame (5). A heating component for heating the welded pipe (3) on both sides is provided on the upper surface of the base (6).

2. The double-sided heating device for straight seam welded pipe according to claim 1, characterized in that, The elastic component includes an elastic sheet (15) bent into an arc shape. The elastic sheet (15) is disposed on one side of the fixing frame (5), and the center point of the elastic sheet (15) is fixed to the fixing frame (5). The support plate (18) is located inside the elastic sheet (15). Both ends of the elastic sheet (15) are fixedly connected to fixing blocks (17). One side of one of the fixing blocks (17) is rotatably connected to a screw (16). The screw (16) passes through the other fixing block (17) and is threadedly connected to it.

3. The double-sided heating device for straight seam welded pipe according to claim 1, characterized in that, The telescopic component is a telescopic rod (14), which is set inside multiple sets of springs (10). One end of the telescopic part of the telescopic rod (14) is fixed to the support plate (18), and the other end of the telescopic rod (14) is fixed to the connecting column (19).

4. The double-sided heating device for straight seam welded pipe according to claim 1, characterized in that, The heating assembly includes a connecting frame (1), and two sliding grooves are provided on the upper surface of the base (6). The connecting frame (1) is slidably connected to the sliding grooves. A motor (4) is fixedly connected to one side of the fixed frame (5). One end of the output shaft of the motor (4) passes through the fixed frame (5) and is fixed to a threaded rod (2) by a coupling. The threaded rod (2) passes through the connecting frame (1) and is threadedly connected to the connecting frame (1). A T-shaped frame is fixedly connected to the top of the connecting frame (1). Arc plates (11) are fixedly connected to both ends of the T-shaped frame. Multiple electric heating tubes (12) are fixedly connected to one side of the arc plate (11).

5. A double-sided heating device for straight seam welded pipes according to claim 4, characterized in that, The welded pipe (3) is located at the center between the two arc plates (11), and the electric heating pipe (12) is located on the side of the arc plate (11) closer to the welded pipe (3).

6. The double-sided heating device for straight seam welded pipe according to claim 1, characterized in that, The number of springs (10) in each set is six.

7. A double-sided heating device for straight seam welded pipes according to claim 4, characterized in that, The base (6) is fixedly connected to casters (7) at the four corners of its bottom.

Images