Heating and lifting device for spraying and winding steel pipe

Abstract

A heating and lifting device for a sprayed and wound steel pipe comprises tug conveying lines capable of enabling the steel pipe to move forwards in a spiral mode, a medium-frequency heating device is arranged between the tug conveying lines, lifting assemblies are arranged on the two sides of the medium-frequency heating device respectively, and the corresponding lifting assemblies comprise supporting frames arranged on the two sides of the medium-frequency heating device. An L-shaped supporting plate used for placing the medium-frequency heating device is connected to the supporting frame in a sliding mode, and driving assemblies used for enabling the L-shaped supporting plate to automatically adjust the height are arranged on the left side and the right side of the supporting frame respectively. According to the medium-frequency heating device, the lifting device is arranged on the medium-frequency heating device, a series of problems caused when the medium-frequency heating device is replaced are fundamentally solved, the replacement efficiency is greatly improved, meanwhile, the labor intensity of operators is relieved, and the life and property safety of the operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of insulation pipes, and particularly relates to a heating lifting device for spraying and winding steel pipes. Background Technique

[0002] The manufacturing process of insulation pipes mainly includes two methods: the one-step method and the two-step method. The spraying and winding method is the one-step method. First, the steel pipe is derusted by a shot blasting machine, then the steel pipe is heated by medium frequency, and then polyurethane material is sprayed on the outer side of the steel pipe through a spray gun to form an insulation layer. After the insulation layer is formed, polyethylene material is wound to complete the production of the insulation pipe.

[0003] Usually, when manufacturing insulation pipes with different pipe diameters, different medium-frequency heating devices need to be replaced in the medium-frequency heating process. Since the steel pipe needs to pass through the hole in the middle of the medium-frequency heating device during heating, in order to ensure uniform heating of the steel pipe, the distance between the steel pipe and the medium-frequency heating device needs to be even, and the height of the medium-frequency heating device needs to be adjusted during replacement.

[0004] The existing method usually uses manual labor to lift the medium-frequency heating device and then uses pads to adjust the height. It cannot achieve automatic adjustment, and it is time-consuming and laborious during manual adjustment, which will also affect production efficiency. Moreover, there may be injury incidents during manual adjustment, and the life and property safety of workers cannot be guaranteed. Content of the Utility Model

[0005] In order to solve the above existing problems, the utility model provides a heating lifting device for spraying and winding steel pipes.

[0006] The utility model is realized through the following technical solutions:

[0007] A heating lifting device for spraying and winding steel pipes includes a drag wheel conveyor line that can make the steel pipe move forward spirally. A medium-frequency heating device is arranged between the drag wheel conveyor lines. Lifting components are respectively arranged on both sides of the medium-frequency heating device. The corresponding lifting components include support frames arranged on both sides of the medium-frequency heating device. An L-shaped support plate for placing the medium-frequency heating device is slidably connected to the support frames. Driving components for automatically adjusting the height of the L-shaped support plate are respectively arranged on the left and right sides of the support frames.

[0008] Further optionally, a first sliding groove is formed on the horizontal plate of the L-shaped support plate. A positive and reverse screw rod is rotatably supported in the first sliding groove. Clamping plates for fixing the medium-frequency heating device are respectively arranged at the positive thread and the reverse thread of the positive and reverse screw rod. A T-shaped sliding groove is formed on the side of the vertical plate of the L-shaped support plate. A T-shaped sliding block that matches the T-shaped sliding groove is fixedly connected to the side of the clamping plate.

[0009] Further optionally, a vertically downward limiting slide bar is provided on the side of the support frame, and a sliding sleeve is slidably connected to the limiting slide bar. The sliding sleeve is fixedly connected to the side of the L-shaped support plate.

[0010] Further optionally, the driving assembly includes driving boxes arranged on both sides of the support frame. A driving motor is provided corresponding to the outside of the driving box. The driving motor is synchronously drivingly connected to a gear rotatably supported on a rotating shaft in the driving box through a transmission belt. A connecting block is fixed on the transmission belt, and the connecting block is fixedly connected to the outer side of the vertical plate of the L-shaped support plate.

[0011] Further optionally, one end of the positive and negative lead screw extends outside the first sliding groove and is connected with a hand wheel at the end.

[0012] Compared with the existing technology, the beneficial effects of the present utility model are as follows: By arranging a lifting device on the intermediate frequency heating device, a series of problems brought about during the replacement of the intermediate frequency heating device are fundamentally solved, the efficiency during replacement is greatly improved, the labor intensity of the operating workers is reduced, and the life and property safety of the operating workers are ensured. Description of the Drawings

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a partially enlarged schematic view of the present utility model;

[0015] Figure 3 is Figure 2 a partially enlarged schematic view;

[0016] In the figure: the drag wheel conveyor line 1, the steel pipe 2, the intermediate frequency heating device 3, the support frame 4, the driving box 5, the driving motor 6, the transmission belt 7, the gear 8, the connecting block 9, the L-shaped support plate 10, the limiting slide bar 11, the sliding sleeve 12, the T-shaped sliding groove 13, the clamping plate 14, the positive and negative lead screw 15, the hand wheel 16, the first sliding groove 101. Detailed Embodiments

[0017] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments:

[0018] As Figure 1 , 2 , shown in 3, a spraying and winding steel pipe heating and lifting device includes a drag wheel conveyor line 1 that can make the steel pipe 2 move forward spirally. An intermediate frequency heating device 3 is arranged between the drag wheel conveyor lines 1. The characteristics are as follows: Lifting components are respectively arranged on both sides of the intermediate frequency heating device 3. Corresponding lifting components include support frames 4 arranged on both sides of the intermediate frequency heating device 3. An L-shaped support plate 10 for placing the intermediate frequency heating device 3 is slidably connected to the support frames 4. Driving components for automatically adjusting the height of the L-shaped support plate 10 are respectively arranged on the left and right sides of the support frames 4.

[0019] As Figure 3 shown, a first chute 101 is provided on the horizontal plate of the L-shaped support plate 10. A positive and reverse lead screw 15 is rotatably supported in the first chute. Clamping plates 14 for fixing the intermediate frequency heating device 3 are respectively arranged at the positive thread part and the reverse thread part of the positive and reverse lead screw 15. A T-shaped chute 13 is provided on the side of the vertical plate of the L-shaped support plate 10. A T-shaped slider that matches the T-shaped chute 13 is fixedly connected to the side of the clamping plate 14.

[0020] As Figure 2 、 3 shown, a vertically downward limiting slide bar 11 is provided on the side of the support frame 4. A sliding sleeve 12 is slidably connected to the limiting slide bar 11. The sliding sleeve 12 is fixedly connected to the side of the L-shaped support plate 10.

[0021] As Figure 1 、 2 、Figure 3 shown, the driving assembly includes driving boxes 5 arranged on both sides of the support frame 4. A driving motor 6 is provided corresponding to the outside of the driving box 5. The driving motor 6 is synchronously drivingly connected to a gear 8 rotatably supported on a rotating shaft in the driving box 5 through a transmission belt 7. A connecting block 9 is fixed on the transmission belt 7. The connecting block 9 is fixedly connected to the outside of the vertical plate of the L-shaped support plate 10.

[0022] As Figure 3 shown, one end of the positive and reverse lead screw 15 extends outside the first chute 101 and is connected with a hand wheel 16 at the end.

[0023] The implementation principle of the spraying and winding steel pipe heating and lifting device in the embodiment of the present application is as follows:

[0024] When installing and adjusting the intermediate frequency heating device 3, first rotate the hand wheel 16. When rotating the hand wheel 16, it will drive the positive and reverse lead screw 15 to rotate and increase the distance between the two upper clamping plates 14. After increasing the distance, place the intermediate frequency heating device 3 on the L-shaped support plate 10, and then reverse the hand wheel 16 to firmly clamp the intermediate frequency heating device 3 to prevent shaking;

[0025] After installing the intermediate frequency heating device 3, start to adjust the height. When adjusting the height upward, start the driving motor 6. The driving motor 6 will drive the gear 8 to rotate. At the same time, the gear 8 will drive the synchronously connected transmission belt 7 to rotate accordingly. When the transmission belt 7 rotates, it will move the L-shaped support plate 10 upward. When the L-shaped support plate 10 moves upward, the intermediate frequency heating device 3 will move accordingly. When it moves to the specified height, stop the driving motor 6 from working, so that the intermediate frequency heating device 3 stops at the specified height (judged according to the on-site situation);

[0026] When it is necessary to lower the height of the intermediate frequency heating device 3, start the driving motor 6 to rotate in the reverse direction to lower the L-shaped support plate 10. When it moves to the specified height, stop the driving motor 6 from working to complete the height reduction;

[0027] Thus, the adjustment work is completed, the work of automatically adjusting the height is realized, and problems such as manual consumption reduction and production efficiency improvement are solved.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heating and lifting device for spraying and winding steel pipes, comprising a tug conveyor line (1) that can make the steel pipe (2) spirally move forward, and a medium frequency heating device (3) is arranged between the tug conveyor line (1), characterized in that: Lifting assemblies are respectively arranged on both sides of the medium frequency heating device (3), and the corresponding lifting assemblies include support frames (4) arranged on both sides of the medium frequency heating device (3), and an L-shaped support plate (10) for placing the medium frequency heating device (3) is slidably connected to the support frame (4), and driving assemblies for automatically adjusting the height of the L-shaped support plate (10) are respectively arranged on the left and right sides of the support frame (4).

2. A spray-wrapped steel pipe heating and lifting device according to claim 1, characterized in that: The L-shaped support plate (10) has a first slide groove (101) on the horizontal plate, a positive and negative thread screw (15) is rotatably supported in the first slide groove, and a clamping plate (14) for fixing the medium frequency heating device (3) is respectively arranged at the positive thread and the negative thread of the positive and negative thread screw (15), and a T-shaped slide groove (13) is formed on the side of the vertical plate of the L-shaped support plate (10), and a T-shaped sliding block matching the T-shaped slide groove (13) is connected and fixed to the side of the clamping plate (14).

3. The heating and lifting device for spray-wrapped steel pipe according to claim 1 is characterized in that: A vertically downward limiting sliding rod (11) is arranged on the side of the support frame (4), a sliding sleeve (12) is slidably connected to the limiting sliding rod (11), and the sliding sleeve (12) is connected and fixed to the side of the L-shaped support plate (10).

4. The heating and lifting device for spray-wrapped steel pipe according to claim 1 is characterized in that: The driving assembly comprises a driving box (5) arranged on both sides of the support frame (4), a driving motor (6) is arranged corresponding to the outer side of the driving box (5), the driving motor (6) is synchronously driven and connected with a gear (8) rotatably supported on a rotating shaft in the driving box (5) through a transmission belt (7), a connecting block (9) is fixed on the transmission belt (7), and the connecting block (9) is connected and fixed to the outer side of the vertical plate of the L-shaped support plate (10).

5. The heating and lifting device for spray-wrapped steel pipe according to claim 1 is characterized in that: One end of the forward and reverse lead screw (15) extends to the outside of the first slide groove (101) and is connected to a hand wheel (16) at the end.

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