Preheating device for processing anti-corrosion steel pipe

Abstract

The utility model discloses a preheating device for anticorrosion steel pipe processing, which comprises a workbench, the periphery of the bottom end of the workbench is fixedly connected with a plurality of groups of brackets, the upper surface of the workbench is fixedly provided with a fixed seat, the upper surface of the fixed seat is fixedly provided with an air cylinder, and the output end of the air cylinder is telescopically connected with an extension rod; a positioning seat is fixedly connected to one end of the extension rod, a sliding block is fixedly connected to the bottom end of the positioning seat, a sliding rail is slidably mounted at the bottom end of the sliding block, and a clamping plate is fixedly mounted on the inner side wall of the positioning seat. The hydraulic pump is started to drive the hydraulic rod and the heating pipe to stretch out and draw back on the inner wall of the sleeve, the heating pipe stretches into the anti-corrosion steel pipe, the heating pipe is used for heating the interior of the anti-corrosion steel pipe, through cooperation of the limiting base and the sleeve, supporting and righting can be conducted in the stretching-out and drawing-back process of the hydraulic rod and the heating pipe, and inclination is avoided; the inner surface and the outer surface of the anti-corrosion steel pipe can be synchronously heated, the heating area is increased, and the heating time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion steel pipe processing, in particular to a preheating device for anti-corrosion steel pipe processing. Background Art

[0002] The main purpose of preheating anti-corrosion steel pipes is to reduce welding stress, prevent cracks, improve crack resistance of welded joints, and optimize welding quality. Preheating is a pre-welding process that heats the entire weldment or localized welding area to slow down the cooling rate of the welded joint, thereby reducing the cooling rate, reducing structural stress, and avoiding thermal cracks.

[0003] In the existing preheating devices for processing anti-corrosion steel pipes, most of the equipment heats the outer surface of the anti-corrosion steel pipe during the preheating process, which reduces the heated area and prolongs the heating time. Moreover, when the anti-corrosion steel pipe is preheated, its temperature is high, which is inconvenient for unloading and reduces work efficiency, thus failing to achieve the best use effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a preheating device for processing anti-corrosion steel pipes.

[0005] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod.

[0006] As a further description of the above technical solution: the bottom end of the positioning seat is slidably connected to the slide rail through a slider, and the outer side wall of the positioning seat is connected to the cylinder through an extension rod.

[0007] As a further description of the above technical solution: the in-tube heating mechanism includes a mounting seat, a hydraulic pump is fixedly installed on the inner side wall of the mounting seat, and the output end of the hydraulic pump is telescopically connected to a hydraulic rod, one end of the hydraulic rod is penetrated by a limit seat, and the inner wall of the limit seat is provided with a sleeve, and the inner wall of the sleeve is penetrated by a heating pipe.

[0008] As a further description of the above technical solution: one end of the heating pipe is passed through a sleeve and fixedly connected to one end of the hydraulic rod, and the heating pipe is made of a stainless steel pipe component.

[0009] As a further description of the above technical solution: the unloading mechanism includes a support rod, a rotating motor is fixedly installed on the top end of the support rod, and a roller is rotatably installed on the bottom end of the support rod.

[0010] As a further description of the above technical solution: the output end of the bottom of the rotating motor passes through the top of the support rod and is fixedly connected to the top of the roller, and the bottom end of the support rod is slidably connected to the inner wall of the slide groove.

[0011] As a further description of the above technical solution: the output end of the electric push rod passes through the workbench and is fixedly connected to one end of the push rod, and the other end of the push rod is fixedly connected to the outer side of the bottom of the support rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the existing technology, this preheating device for processing anti-corrosion steel pipes starts the hydraulic pump to drive the hydraulic rod and the heating pipe to extend and retract on the inner wall of the sleeve, and extends the heating pipe into the interior of the anti-corrosion steel pipe. The heating pipe is used to heat the interior of the anti-corrosion steel pipe. Through the cooperation of the limit seat and the sleeve, the hydraulic rod and the heating pipe can be supported and straightened during the extension and retraction process to avoid tilting. The inner and outer surfaces of the anti-corrosion steel pipe can be heated simultaneously, thereby increasing the heated area and shortening the heating time.

[0014] 2. Compared with the existing technology, this preheating device for processing anti-corrosion steel pipes, when the anti-corrosion steel pipe is preheated, starts the electric push rod to drive the push rod to extend and retract on the inner wall of the slide groove. During the extension and retraction process of the push rod, the two sets of support rods are pushed to slide in the slide groove, so that the two sets of rollers correspond to each other, and the two sides of the outer wall of the anti-corrosion steel pipe are pressed tightly. At the same time, the rotary motor is started to drive the roller to rotate, and the anti-corrosion steel pipe is led out. When the anti-corrosion steel pipe is preheated, the unloading work is facilitated, the work efficiency is improved, and the best use effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the rear structure of a preheating device for processing anti-corrosion steel pipes proposed by the present invention;

[0016] Figure 2 This is a schematic structural diagram of the in-tube heating mechanism proposed in the present invention;

[0017] Figure 3 This is a structural diagram of the blanking mechanism proposed in the utility model.

[0018] Legend:

[0019] 1. Workbench; 2. Bracket; 3. Fixed seat; 4. Cylinder; 5. Extension rod; 6. Positioning seat; 7. Slider; 8. Slide rail; 9. Clamp; 10. Heating wire; 11. In-tube heating mechanism; 111. Mounting seat; 112. Hydraulic pump; 113. Hydraulic rod; 114. Limit seat; 115. Sleeve; 116. Heating tube; 12. Slide; 13. Unloading mechanism; 131. Support rod; 132. Rotating motor; 133. Roller; 14. Push rod; 15. Electric push rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figure 1-3 The utility model provides a preheating device for processing anti-corrosion steel pipes: it includes a workbench 1, a plurality of groups of brackets 2 are fixedly connected to the bottom end of the workbench 1, and a fixed seat 3 is fixedly installed on the upper surface of the workbench 1, and a cylinder 4 is fixedly installed on the upper surface of the fixed seat 3, and the output end of the cylinder 4 is telescopically connected to an extension rod 5, one end of the extension rod 5 is fixedly connected to a positioning seat 6, and the bottom end of the positioning seat 6 is fixedly connected to a slider 7, and the bottom end of the slider 7 is slidably installed with a slide rail 8, and a splint 9 is fixedly installed on the inner side wall of the positioning seat 6, and a heating wire 10 is provided on the surface of the splint 9. One end of the anti-corrosion steel pipe is placed in the gap between the two groups of splints 9, and the cylinder 4 is started to drive the extension rod 5 to extend and retract. During the extension and retraction process of the extension rod 5, a group of splints 9 are pushed to slide on the upper surface of the slide rail 8. The cam 14 is connected to the upper surface of the workbench 1 and the lower surface of the workbench 1 is fixed with a plurality of springs 12, 13 and 16. The cam 14 is connected to the upper surface of the workbench 1 and the upper surface of the workbench 1 is fixed with a plurality of springs 12. The cam 14 is connected to the upper surface of the workbench 1 and the upper surface of the workbench 1 is fixed with a plurality of springs 12. The cam 14 is connected to the upper surface of the workbench 1 and the upper surface of the workbench 1 is fixed with a plurality of springs 12.

[0022] The in-pipe heating mechanism 11 includes a mounting seat 111, on the inner wall of which a hydraulic pump 112 is fixedly mounted, and the output end of the hydraulic pump 112 is telescopically connected to a hydraulic rod 113, one end of the hydraulic rod 113 is penetrated by a limiting seat 114, and the inner wall of the limiting seat 114 is provided with a sleeve 115, and the inner wall of the sleeve 115 is penetrated by a heating pipe 116, and the hydraulic pump 112 is started to drive the hydraulic rod 113 and the heating pipe 116 to extend and retract on the inner wall of the sleeve 115, and the heating pipe 116 is extended into the interior of the anti-corrosion steel pipe, and the interior of the anti-corrosion steel pipe is heated by the heating pipe 116, and through the cooperation of the limiting seat 114 and the sleeve 115, the hydraulic rod 113 and the heating pipe 116 can be supported and straightened during the extension and retraction process to avoid tilting, one end of the heating pipe 116 is penetrated by the sleeve 115 and fixedly connected to one end of the hydraulic rod 113, and the heating pipe 116 is made of stainless steel pipe components, which are corrosion-resistant and have a long service life.

[0023] The unloading mechanism 13 includes a support rod 131, a rotating motor 132 is fixedly installed on the top of the support rod 131, and a roller 133 is rotatably installed on the bottom of the top of the support rod 131. When the anti-corrosion steel pipe is preheated, the electric push rod 15 is started to drive the push rod 14 to retract and retract on the inner wall of the slide 12. During the retraction and extension process of the push rod 14, the two groups of support rods 131 are pushed to slide in the slide 12, so that the two groups of rollers 133 correspond to each other, pressing the two sides of the outer wall of the anti-corrosion steel pipe. At the same time, the rotating motor 132 is started to drive the roller 133 to rotate and lead the anti-corrosion steel pipe out. The output end of the bottom of the rotating motor 132 passes through the top of the support rod 131 and is fixedly connected to the top of the roller 133, and the bottom end of the support rod 131 is slidably connected to the inner wall of the slide 12.

[0024] Working principle: put one end of the anti-corrosion steel pipe into the gap between the two groups of splints 9, start the cylinder 4 to drive the extension rod 5 to expand and contract, and during the expansion and contraction process of the extension rod 5, push one group of splints 9 to slide on the upper surface of the slide rail 8, and connect with the other group of splints 9 to clamp the anti-corrosion steel pipe. At the same time, turn on the heating wire 10 to heat the outer surface of the anti-corrosion steel pipe, start the hydraulic pump 112 to drive the hydraulic rod 113 and the heating pipe 116 to expand and contract on the inner wall of the sleeve 115, and extend the heating pipe 116 into the interior of the anti-corrosion steel pipe. The interior is heated, and through the cooperation of the limit seat 114 and the sleeve 115, the hydraulic rod 113 and the heating tube 116 can be supported and straightened during the extension and contraction process to avoid tilting. When the anti-corrosion steel pipe is preheated, the electric push rod 15 is started to drive the push rod 14 to extend and retract on the inner wall of the slide 12. During the extension and contraction process of the push rod 14, the two groups of support rods 131 are pushed to slide in the slide 12, so that the two groups of rollers 133 correspond to each other, and the two sides of the outer wall of the anti-corrosion steel pipe are pressed tightly. At the same time, the rotating motor 132 is started to drive the roller 133 to rotate, and the anti-corrosion steel pipe is led out.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A preheating device for processing anti-corrosion steel pipes, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a plurality of brackets (2) on all sides, and a fixed seat (3) is fixedly installed on the upper surface of the workbench (1), and a cylinder (4) is fixedly installed on the upper surface of the fixed seat (3), and the output end of the cylinder (4) is telescopically connected to an extension rod (5), one end of the extension rod (5) is fixedly connected to a positioning seat (6), and the bottom end of the positioning seat (6) is fixedly connected to a slider (7), and the bottom end of the slider (7) is slidably installed with a slide rail (8), and the inner end of the positioning seat (6) is fixedly connected to the bottom end of the slider (7). A splint (9) is fixedly installed on the side wall, and a heating wire (10) is provided on the surface of the splint (9); an in-tube heating mechanism (11) is fixedly installed on the upper surface of one end of the workbench (1), and a slide groove (12) is provided on the inner wall of one end of the workbench (1); a feeding mechanism (13) is slidably installed on the inner wall of the slide groove (12), and a push rod (14) is passed through the inner wall of the slide groove (12); electric push rods (15) are fixedly installed on both sides of the outer wall of the workbench (1) at both ends of the slide groove (12).

2. The preheating device for processing anti-corrosion steel pipes according to claim 1, characterized in that: The bottom end of the positioning seat (6) is slidably connected to the slide rail (8) via a slider (7), and the outer side wall of the positioning seat (6) is connected to the cylinder (4) via an extension rod (5).

3. The preheating device for processing anti-corrosion steel pipes according to claim 1, characterized in that: The in-pipe heating mechanism (11) comprises a mounting seat (111), a hydraulic pump (112) is fixedly mounted on the inner side wall of the mounting seat (111), and the output end of the hydraulic pump (112) is telescopically connected to a hydraulic rod (113), one end of the hydraulic rod (113) is penetrated by a limiting seat (114), and the inner wall of the limiting seat (114) is provided with a sleeve (115), and the inner wall of the sleeve (115) is penetrated by a heating pipe (116).

4. The preheating device for processing anti-corrosion steel pipes according to claim 3, characterized in that: One end of the heating pipe (116) is provided with a sleeve (115) and is fixedly connected to one end of the hydraulic rod (113), and the heating pipe (116) is made of a stainless steel pipe component.

5. The preheating device for processing anti-corrosion steel pipes according to claim 1, characterized in that: The unloading mechanism (13) comprises a support rod (131), a rotary motor (132) is fixedly mounted on the top end of the support rod (131), and a roller (133) is rotatably mounted on the bottom end of the support rod (131).

6. The preheating device for processing anti-corrosion steel pipes according to claim 5, characterized in that: The output end of the bottom of the rotary motor (132) passes through the top of the support rod (131) and is fixedly connected to the top of the roller (133), and the bottom end of the support rod (131) is slidably connected to the inner wall of the slide groove (12).

7. The preheating device for processing anti-corrosion steel pipes according to claim 1, characterized in that: The output end of the electric push rod (15) passes through the workbench (1) and is fixedly connected to one end of the push rod (14), and the other end of the push rod (14) is fixedly connected to the outer side of the bottom of the support rod (131).

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