Flexible composite pipe orifice diameter expanding device

Abstract

The utility model relates to the technical field of pipe orifice expanding equipment, and discloses a flexible composite pipe orifice expanding device which comprises a bottom plate, two symmetrically-arranged moving frames are arranged on the upper surface of the bottom plate, two symmetrically-arranged pipe body clamping blocks make contact with the upper surfaces of the two moving frames, and a cooling pipe is arranged below the right ends of the two moving frames. According to the diameter expanding device for the pipe orifice of the flexible composite pipe, the pipe orifice of an external pipe body can be preheated during machining through the arranged heating wire and the arranged air outlet groove, the problem that the pipe orifice is torn during flaring work can be effectively avoided, the pipe orifice can be cooled after flaring is completed through the arranged cooling pipe and the arranged air tap, and the pipe orifice can be conveniently cooled. According to the device, the shaping speed is effectively increased, follow-up pipe body machining is facilitated, the height of the conical flaring device can be adjusted through the arranged electric push rod, a user can conveniently replace the pipe body clamping block through the arranged connecting hole, and the effect of flaring pipe bodies with different diameters is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of pipe orifice diameter expansion equipment, and in particular to a flexible composite pipe orifice diameter expander. Background Art

[0002] A pipe expander, also known as a pipe expander or a tube expander, is a mechanical device that enlarges the inner diameter of a steel pipe. It is mainly used for the hot expansion production of seamless steel pipes, straight seam welded pipes, coiled pipes and other steel pipes. The types of steel pipes that can be expanded include various plain carbon steels, alloy steels, stainless steels, etc.

[0003] The existing patent (publication number: CN216359283U) discloses a flexible composite pipe orifice diameter expander; it uses a progressive method to expand the diameter of the flexible composite pipe orifice, improves the success rate of the flexible composite pipe orifice diameter expansion, and is more practical; it includes a base plate, a V-shaped placement frame, a clamping limit mechanism and an expansion mechanism, the V-shaped placement frame and the clamping limit mechanism are fixedly installed on the base plate, the expansion mechanism includes a mounting seat, a mobile frame, a mounting cylinder, multiple groups of arc expansion blocks, tapered blocks and a driving mechanism for providing power for the rotation of the mounting cylinder, the mounting seat is fixedly installed with two groups of first driving cylinders that provide power for the left and right movement of the mobile frame, the mounting cylinder can be rotatably installed on the mobile frame, the multiple groups of arc expansion blocks are enclosed in a cylindrical body, and the middle of the cylindrical body enclosed by the multiple groups of arc expansion blocks is provided with a tapered groove that matches the tapered block, the mobile frame is fixedly installed with a second driving cylinder, and the driving mechanism includes a motor, a reducer and a synchronous chain.

[0004] Under the action of friction, the temperature at the mouth of the flexible composite pipe gradually increases in the above-mentioned device, and with the synchronous centrifugal movement of multiple groups of arc-shaped expansion blocks, the mouth of the flexible composite pipe can be expanded. When the mouth of the flexible composite pipe is expanded, the flexible composite pipe is cooled, and the clamping limit mechanism is disengaged from the limit on the flexible composite pipe. However, the composite pipe is heated by friction, which is easy to cause wear to the composite pipe, reduce the thickness of the wall of the mouth, and affect the overall strength. At the same time, after the expansion is completed, it waits for the mouth to be finalized through natural cooling, which is inefficient and cannot quickly process the next pipe body, affecting production efficiency. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a flexible composite pipe mouth expander with the advantages of high expansion efficiency. It solves the problem that the composite pipe is heated by friction, which easily causes wear to the composite pipe, reduces the thickness of the pipe mouth wall, and affects the overall strength. At the same time, after the expansion is completed, it waits for the pipe mouth to be shaped through natural cooling, which has low efficiency and cannot quickly process the next pipe body, affecting production efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a flexible composite pipe orifice brace, comprising a bottom plate, the upper surface of which is provided with two symmetrically arranged moving frames, the upper surfaces of the two moving frames contacting with two symmetrically arranged pipe body clamping blocks;

[0007] A cooling pipe is provided below the right ends of the two movable racks, and a plurality of air nozzles are fixedly connected to the outer surface of the cooling pipe;

[0008] A widening frame is provided above the right end of the bottom plate, a lifting plate is provided above the widening frame, a support plate is fixedly connected above the lifting plate, a power tube is rotatably connected inside the support plate, a heating wire is fixedly installed on the left end of the power tube, a plurality of circumferentially arranged air outlet slots are provided on the outer surface of the left end of the power tube, and a conical expander is fixedly installed on the outer surface of the power tube.

[0009] Through the above scheme, by means of the set heating wire and air outlet slot, the outer tube mouth can be preheated during processing, which can effectively avoid the problem of tube mouth tearing during the expansion work. By means of the set cooling tube and air nozzle, the tube mouth can be cooled after the expansion is completed, thereby effectively improving its shaping rate and facilitating the subsequent tube processing. By means of the set electric push rod, the height of the conical expander can be adjusted. By means of the set connecting hole, the user can replace the tube clamping block to achieve the effect of expanding tubes of different diameters.

[0010] Furthermore, two threaded plates are fixedly connected to the upper surface of the bottom plate, a bidirectional threaded rod is rotatably connected between the two threaded plates, and both of the two movable frames are threadedly connected to both ends of the bidirectional threaded rod.

[0011] Through the above solution, by setting the bidirectional threaded rod, the purpose of moving the two movable racks closer to or farther away from each other can be achieved.

[0012] Furthermore, a driving frame is fixedly connected to the upper surface of the right end of the bottom plate, a first threaded rod is rotatably connected between the left and right inner walls of the driving frame, the first threaded rod is threadedly connected to the expansion frame, and the expansion frame is slidably connected to the driving frame.

[0013] Through the above solution and the provision of the first threaded rod, the purpose of moving the tapered expander left and right can be achieved.

[0014] Furthermore, two electric push rods are fixedly embedded on the upper surface of the expansion frame, and the output ends of the two electric push rods are fixedly connected to the lifting plate.

[0015] Through the above scheme, the purpose of lifting the lifting plate can be achieved by setting the electric push rod.

[0016] Furthermore, two air pumps are installed on the upper surface of the right end of the bottom plate, and the rearmost output end of the air pump is fixedly connected to the rear end of the cooling pipe through a bellows.

[0017] Through the above solution, by setting the air pump, an air source can be provided for the cooling pipe.

[0018] Furthermore, the right end of the power tube is rotatably connected to a stop tube, and the output end of the air pump at the front is fixedly connected to the right end of the stop tube through a bellows.

[0019] Through the above solution, by setting the anti-rotation tube, it is possible to prevent the power tube from driving the bellows to rotate during the rotation process.

[0020] Furthermore, the right side surface of the support plate is rotatably connected to a power shaft, and the outer surfaces of the power shaft and the power tube are fixedly connected to gears, and the two gears are meshedly connected.

[0021] Through the above scheme and the setting of gears, the purpose of transmitting power for the rotation of the power tube can be achieved.

[0022] Furthermore, the upper surface of each of the tube clamping blocks is provided with two connection holes penetrating the movable frame.

[0023] Through the above solution, by setting the connection hole, it is convenient for the user to disassemble and assemble the tube body clamping block by cooperating with external bolts.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0025] This flexible composite pipe orifice expander can preheat the outer pipe orifice during processing through the provided heating wire and air outlet slot, and can effectively avoid the problem of pipe orifice tearing during expansion. The provided cooling pipe and air nozzle can be used to cool the pipe orifice after expansion, effectively improving its shaping rate and facilitating subsequent pipe processing. The provided electric push rod can adjust the height of the tapered expander, and the provided connecting hole can facilitate the user to replace the pipe clamping block, thereby achieving the effect of expanding pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the overall structure of this application Figure 1 ;

[0027] Figure 2 A three-dimensional diagram of the overall structure of this application Figure 2 ;

[0028] Figure 3 A cross-sectional view of the front view of the overall structure of this application;

[0029] Figure 4 This is a schematic diagram of the heating wire and air outlet slot structure of this application.

[0030] In the figure:

[0031] 1. Bottom plate; 2. Moving frame; 3. Tube clamping block; 4. Cooling tube; 5. Air nozzle; 6. Expanding frame; 7. Lifting plate; 8. Support plate; 9. Power tube; 10. Heating wire; 11. Air outlet slot; 12. Conical expander; 13. Threaded plate; 14. Bidirectional threaded rod; 15. Driving frame; 16. First threaded rod; 17. Electric push rod; 18. Air pump; 19. Stop tube; 20. Power shaft; 21. Connecting hole; 22. Gear. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1 , Figure 2 and Figure 3 A flexible composite pipe orifice brace in this embodiment includes a base plate 1, and two symmetrically arranged moving frames 2 are provided on the upper surface of the base plate 1. The upper surfaces of the two moving frames 2 are in contact with two symmetrically arranged pipe body clamping blocks 3. Two threaded plates 13 are fixedly connected to the upper surface of the base plate 1, and a bidirectional threaded rod 14 is rotatably connected between the two threaded plates 13. The two moving frames 2 are both threadedly connected to the two ends of the bidirectional threaded rod 14. By setting the bidirectional threaded rod 14, the two moving frames 2 can be moved closer to or farther away from each other.

[0034] Two connecting holes 21 penetrating the movable frame 2 are provided on the upper surface of each tube body clamping block 3. The setting of the connecting holes 21 can facilitate the user to disassemble and assemble the tube body clamping block 3 in cooperation with external bolts. A cooling pipe 4 is provided at the lower right end of the two movable frames 2, and a plurality of air nozzles 5 are fixedly connected to the outer surface of the cooling pipe 4.

[0035] See also Figure 1 , Figure 3 and Figure 4 A expanding frame 6 is provided above the right end of the bottom plate 1, a lifting plate 7 is provided above the expanding frame 6, a support plate 8 is fixedly connected above the lifting plate 7, a power tube 9 is rotatably connected inside the support plate 8, a heating wire 10 is fixedly installed at the left end of the power tube 9, a plurality of circumferentially arranged air outlet slots 11 are provided on the outer surface of the left end of the power tube 9, and a conical expander 12 is fixedly installed on the outer surface of the power tube 9.

[0036] See also Figure 1 , Figure 2 and Figure 3 , a driving frame 15 is fixedly connected to the upper surface of the right end of the bottom plate 1, and a first threaded rod 16 is rotatably connected between the left and right inner walls of the driving frame 15, and the first threaded rod 16 is threadedly connected to the expanding frame 6, and the expanding frame 6 is slidably connected to the driving frame 15. Through the setting of the first threaded rod 16, the left and right movement of the tapered expander 12 can be achieved, and two electric push rods 17 are fixedly inlaid on the upper surface of the expanding frame 6, and the output ends of the two electric push rods 17 are fixedly connected to the lifting plate 7. Through the setting of the electric push rods 17, the lifting purpose of the lifting plate 7 can be achieved. The right side surface of the support plate 8 is rotatably connected with a power shaft 20, and the outer surfaces of the power shaft 20 and the power tube 9 are fixedly connected with gears 22, and the two gears 22 are meshed and connected. Through the setting of the gear 22, the purpose of transmitting power for the rotation of the power tube 9 can be achieved.

[0037] See also Figure 1 , Figure 2 and Figure 3 Two air pumps 18 are installed on the upper surface of the right end of the base plate 1. The output end of the rearmost air pump 18 is fixedly connected to the rear end of the cooling pipe 4 through a bellows. The setting of the air pump 18 can provide an air source for the cooling pipe 4. The right end of the power pipe 9 is rotatably connected to a stop pipe 19. The output end of the frontmost air pump 18 is fixedly connected to the right end of the stop pipe 19 through a bellows. The setting of the stop pipe 19 can prevent the power pipe 9 from driving the bellows to rotate during rotation.

[0038] A flexible composite pipe orifice expander in the present embodiment can preheat the outer pipe orifice during processing through the provided heating wire 10 and the air outlet slot 11, and can effectively avoid the problem of tearing of the pipe orifice during the expansion work. The provided cooling pipe 4 and the air nozzle 5 can be used to cool the pipe orifice after the expansion is completed, and effectively improve its shaping rate, which is convenient for subsequent processing of the pipe body. The provided electric push rod 17 can adjust the height of the conical expander 12, and the provided connecting hole 21 can facilitate the user to replace the pipe clamping block 3 to achieve the effect of expanding pipes of different diameters.

[0039] It should be noted that during the expansion operation, the power tube 9 and the external tube body are placed on the same axis.

[0040] The working principle of the above embodiment is as follows: when in use, the tube body is placed between the two tube body clamping blocks 3, and the bidirectional threaded rod 14 is driven to rotate by an external motor, so as to drive the two moving frames 2 and the tube body clamping blocks 3 to approach each other and clamp the tube body. The height of the lifting plate 7 is adjusted by driving the electric push rod 17 so that the power tube 9 and the external tube body are on the same axis, and then the first threaded rod 16 is driven to rotate, so as to drive the driving frame 15 to move, so that the heating wire 10 is located inside the pipe mouth, and then the air pump 18 is cooperated to output the air flow through the air outlet slot 11 into the inside of the pipe mouth, and the power shaft 20 is driven to rotate, and the power shaft 20 drives the power tube 9 to rotate through the meshing of the gear 22, so as to heat the pipe mouth evenly. After the heating is completed, the driving frame 15 is driven to continue to move, so that the conical expander 12 expands the pipe mouth.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flexible composite pipe orifice bracing device, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is provided with two symmetrically arranged moving frames (2), and the upper surfaces of the two moving frames (2) are in contact with two symmetrically arranged tube clamping blocks (3); A cooling pipe (4) is provided below the right ends of the two movable racks (2), and a plurality of air nozzles (5) are fixedly connected to the outer surface of the cooling pipe (4); An expansion frame (6) is provided above the right end of the bottom plate (1), a lifting plate (7) is provided above the expansion frame (6), a support plate (8) is fixedly connected above the lifting plate (7), a power tube (9) is rotatably connected inside the support plate (8), a heating wire (10) is fixedly mounted on the left end of the power tube (9), a plurality of circumferentially arranged air outlet slots (11) are provided on the outer surface of the left end of the power tube (9), and a conical expander (12) is fixedly mounted on the outer surface of the power tube (9).

2. The flexible composite pipe opening diameter expander according to claim 1, characterized in that: Two threaded plates (13) are fixedly connected to the upper surface of the bottom plate (1), a bidirectional threaded rod (14) is rotatably connected between the two threaded plates (13), and both ends of the two movable frames (2) are threadedly connected to the bidirectional threaded rod (14).

3. The flexible composite pipe orifice expander according to claim 1, characterized in that: A driving frame (15) is fixedly connected to the upper surface of the right end of the bottom plate (1), a first threaded rod (16) is rotatably connected between the left and right inner side walls of the driving frame (15), the first threaded rod (16) is threadedly connected to the expansion frame (6), and the expansion frame (6) is slidably connected to the driving frame (15).

4. The flexible composite pipe opening diameter expander according to claim 1, characterized in that: Two electric push rods (17) are fixedly embedded on the upper surface of the expansion frame (6), and the output ends of the two electric push rods (17) are fixedly connected to the lifting plate (7).

5. The flexible composite pipe orifice expander according to claim 1, characterized in that: Two air pumps (18) are installed on the upper surface of the right end of the bottom plate (1), and the output end of the rearmost air pump (18) is fixedly connected to the rear end of the cooling pipe (4) through a bellows.

6. The flexible composite pipe opening diameter expander according to claim 5, characterized in that: The right end of the power tube (9) is rotatably connected to a rotation-stopping tube (19), and the output end of the air pump (18) at the front is fixedly connected to the right end of the rotation-stopping tube (19) via a bellows.

7. The flexible composite pipe orifice expander according to claim 1, characterized in that: The right side surface of the support plate (8) is rotatably connected to a power shaft (20), and the outer surfaces of the power shaft (20) and the power tube (9) are both fixedly connected to gears (22), and the two gears (22) are meshingly connected.

8. The flexible composite pipe opening diameter expander according to claim 1, characterized in that: The upper surface of each of the tube clamping blocks (3) is provided with two connection holes (21) that penetrate the movable frame (2).

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