One-step welding device for geotextile welding

Abstract

The present application provides a one-time forming welding device for geotextile welding, which includes a bracket, one end of the bracket is fixedly connected to a frame plate, and the other end is fixedly connected to a shaft sleeve, and a telescopic shaft is rotatably connected to the shaft sleeve; one end of the telescopic shaft located outside the shaft sleeve is slidably connected to the frame plate, and a locking mechanism is provided at the sliding connection between the telescopic shaft and the frame plate; the other end of the telescopic shaft located outside the shaft sleeve is provided with a roller steering mechanism; a first handle is installed on the telescopic shaft on the outside of the telescopic shaft; an adjustment mechanism is provided on the opposite side of the side of the telescopic shaft connected to the first handle; a welding assembly is provided below the connection between the bracket and the frame plate, the welding assembly is connected to the adjustment mechanism, and a driving device is provided on the welding assembly, and the driving device is used to drive the welding assembly to move. The present application has a compact structure and can also be turned during the welding process, which can not only ensure a good welding effect but also has the advantages of simple and convenient operation, and is suitable for welding geotextiles with irregular shapes.

Description

Technical Field

[0001] The present application belongs to the technical field of welding equipment, and specifically relates to a one-time forming welding device for welding geotextiles. Background Art

[0002] Currently, in construction projects requiring anti-seepage protection, such as anti-seepage ecological filter ponds, integrally welded geotextiles are commonly used. Geotextile welding is typically performed using a climbing welder. Existing geotextile welding machines primarily consist of an electric heating system, a welding pressure regulation system, and a transmission system. The integration of these three systems determines the functional characteristics of the geotextile welding machine.

[0003] During the research and development process, the inventors of this application discovered that the geotextile welding machine in the prior art has the following problems: (1) The geotextile to be welded cannot be automatically arranged during the welding process, and the staff needs to pay attention to the welding process and manually arrange the geotextile to be welded, otherwise it is easy to produce large wrinkles, cold welds and other welding defects; however, it is easy to cause burns when manually arranging the geotextile to be welded; (2) The geotextile to be welded cannot be automatically preheated before welding, resulting in slow welding speed and low welding efficiency; (3) It is difficult to turn during the welding process, and it is impossible to weld some geotextiles with curved shapes. Therefore, how to improve welding efficiency, improve welding defects, and controllably change the welding trajectory is a problem that technicians in this field urgently need to solve.

[0004] Application Contents

[0005] In order to at least overcome the problems existing in the related art to a certain extent, the present application provides a one-time forming welding device for geotextile welding.

[0006] According to an embodiment of the present application, the present application provides a one-step forming welding device for geotextile welding, which includes a bracket, a frame plate, a telescopic shaft, a first handle, a locking mechanism, a roller-steering mechanism, an adjustment mechanism, a welding assembly, and a drive device;

[0007] One end of the bracket is fixedly connected to the frame plate, and the other end thereof is fixedly connected to a shaft sleeve, and the telescopic shaft is rotatably connected to the shaft sleeve;

[0008] One end of the telescopic shaft located outside the shaft sleeve is slidably connected to the frame plate, and the sliding connection between the telescopic shaft and the frame plate is provided with the locking mechanism; the other end of the telescopic shaft located outside the shaft sleeve is provided with the roller steering mechanism;

[0009] Located outside the telescopic shaft, the first handle is mounted on the telescopic shaft; one support rod of the first handle is rotatably connected to the telescopic shaft and is close to the end of the telescopic shaft connected to the frame plate; the other support rod of the first handle is slidably connected to the telescopic shaft and is close to the shaft sleeve;

[0010] The adjustment mechanism is provided on a support rod in the first handle that is rotatably connected to the telescopic shaft and on a side of the telescopic shaft opposite to the side where the first handle is connected;

[0011] The welding assembly is provided below the connection between the bracket and the frame plate, the welding assembly is connected to the adjustment mechanism, and a driving device is provided on the welding assembly, and the driving device is used to drive the welding assembly to move;

[0012] The driving adjustment mechanism is used to adjust the upper and lower positions of the welding assembly in the vertical direction, and the locking mechanism is used to lock the position of the welding assembly; the roller steering mechanism is used to change the running direction.

[0013] In the one-step welding device for geotextile welding, the locking mechanism includes an adjustment plate and a screw, the adjustment plate is fixedly connected to the end portion of the telescopic shaft and the frame plate at one end of the sliding connection, and the adjustment plate is arranged parallel to the frame plate;

[0014] A first threaded hole is formed on a portion of the adjustment plate outside the telescopic shaft. The screw is arranged in the first threaded hole. The bottom end of the screw is coupled to the outer side surface of one end of the frame plate and the telescopic shaft that are slidably connected.

[0015] In the above-mentioned one-time forming welding device for geotextile welding, the rolling steering mechanism includes a roller frame, a first spring, a rectangular block, a telescopic rod, a support plate and a roller; the roller frame is fixedly connected to the telescopic shaft, with the axis in the length direction of the telescopic shaft as the axis of symmetry, the first spring is symmetrically installed at the bottom of the roller frame, the bottom of the first spring is connected to the rectangular block, the telescopic rod is arranged inside the first spring, one end of the telescopic rod is fixedly connected to the bottom of the roller frame, and the other end thereof is fixedly connected to the rectangular block; the bottom of the rectangular block is connected to the support plate, and the roller is rotatably connected between the two support plates.

[0016] In the above-mentioned one-time forming welding device for geotextile welding, the adjustment mechanism includes a clamping ring, a hinge support and a lever; the clamping ring is arranged on the outside of one end of the sliding connection between the telescopic shaft and the frame plate, the hinge support is arranged on the bracket, the body of the lever is hinged to the bracket through the hinge support, one end of the lever is coupled to the clamping ring, and the other end is connected to the welding assembly.

[0017] Furthermore, the welding assembly includes a roller frame, a first long shaft, a first electric heating roller, a copper ring, a brush holder, a brush, and a second spring; the roller frame is connected to a lever, the first long shaft is rotatably connected to the roller frame, the first electric heating roller is sleeved on the first long shaft, a pressure ring is sleeved on the outer wall of the first electric heating roller, and a continuous raised pressure strip is provided on the outer wall of the pressure ring;

[0018] Located on the outside of the roller frame, two copper rings are provided on the outside of one end of the first long axis, and the brush holder rotatably connected to the first long axis is provided on the outside of the copper ring. A slideway is provided inside the brush holder corresponding to the copper ring, and the brush slidably connected to the copper ring is provided inside the slideway. The upper end of the brush is provided with the second spring, and the lower end of the brush is in contact with the outer side surface of the copper ring.

[0019] Two wires are provided inside the first long shaft and extend to the outside, wherein one end of one of the wires is connected to one of the copper rings, and the other end thereof is connected to one power-on terminal of the first electric heating roller; and one end of the other wire is connected to the other copper ring, and the other end thereof is connected to the other power-on terminal of the first electric heating roller.

[0020] Furthermore, the driving device includes a motor, a driving sprocket, a tensioning wheel, a driven sprocket and a chain; the driving sprocket is mounted on the output shaft of the motor, and the tensioning wheel is provided on a side of the driving sprocket close to the lever;

[0021] The two ends of the core shaft of the tensioning wheel are rotatably connected to the bearing seat, the end of the bearing seat is fixedly connected to the tension spring, and the opposite end of the tension spring and the bearing seat connection end is welded with a hinge block, and the hinge block is hinged to the bracket through a hinge shaft;

[0022] Located on the outside of the roller frame, the driven sprocket is connected to the other end of the first long axis; the driving sprocket, the tensioning wheel and the driven sprocket are located in the same plane and are connected by a chain; the driving sprocket drives the tensioning wheel and the driven sprocket to rotate through the chain.

[0023] Furthermore, the one-step welding device for geotextile welding further comprises an integral welding supporting device, the integral welding supporting device comprising an S-shaped frame, a lever assembly, and an electric heating assembly, the S-shaped frame being connected to the end surface of the frame plate opposite to the end connected to the telescopic shaft; the lever assembly being connected to the front side of the S-shaped frame along the direction of travel, and the electric heating assembly being connected to the rear side of the S-shaped frame along the direction of travel;

[0024] The derailleur assembly includes a derailleur frame, a second long shaft, a derailleur frame ring, and a derailleur; one end of the derailleur frame is connected to the S-shaped frame, and the other end thereof is rotatably connected to the second long shaft, located on the left and right sides of the derailleur frame, and the derailleur frame rings are provided at both ends of the second long shaft, and the derailleur frame rings are rotatably connected between the opposite inner sides of the two derailleur frame rings;

[0025] The electric heating assembly includes a connecting block, a second fan, and a supporting ear; the connecting block is welded to the rear side of the S-shaped frame along the travel direction, and the second fan is provided on the side of the connecting block away from the S-shaped frame; two protruding supporting ears are provided on the connecting block below the first electric heating roller and along the length direction of the first major axis, forming an air supply channel between the two supporting ears;

[0026] A blind hole is opened inside the supporting ear, a sliding support is slidably connected in the blind hole, a compression spring is provided between the bottom end of the sliding support and the bottom of the blind hole; a third long axis is connected between the two sliding supports;

[0027] Corresponding to the first electric heating roller, a second electric heating roller is sleeved on the outer wall of the third long shaft. The second electric heating roller is connected in parallel with the first electric heating roller through a switching circuit. A pressure ring is sleeved on the outer wall of the second electric heating roller.

[0028] Furthermore, the one-time forming welding device for geotextile welding also includes a local welding supporting device, and the local welding supporting device includes a wedge bracket and an electric heating wedge; the wedge bracket is connected to the end face of the frame plate opposite to the end of the telescopic shaft, and the bottom surface of the wedge bracket is rotatably connected to the electric heating wedge, and the electric heating wedge is connected in parallel with the first electric heating roller through a switching circuit; a torsion spring is provided on the outside of the rotating shaft to which the lower end face of the wedge bracket is rotatably connected to the electric heating wedge.

[0029] Furthermore, a first fan is detachably connected to the bottom of the bracket, and a rolling body is installed at the end opposite to the end where the first fan is connected to the bracket.

[0030] Furthermore, a controller for regulating and controlling the circuit is installed on the side of the frame opposite to the side connected to the motor, the controller is electrically connected to the motor, the first fan and the first electric heating roller, and a first knob, a second knob and a third knob are correspondingly provided on the outer side of the controller;

[0031] The first knob is used to adjust the wind speed of the first fan; the second knob is used to adjust the rotation speed of the motor; and the third knob is used to adjust the power of the first electric heating roller.

[0032] According to the above specific implementation methods of the present application, it can be known that there are at least the following beneficial effects: the one-time forming welding device for geotextile welding provided by the present application can be used for both the overall welding of geotextiles and the partial welding of geotextiles. During the welding construction of the entire geotextile, when the geotextile passes through the push rod frame ring, the push rod can smooth out the wrinkles on the surface of the geotextile to be welded, and can also remove foreign matter such as dust attached to the surface of the geotextile to be welded to prevent it from affecting the welding effect; the S-shaped frame will guide the geotextile to be welded to smoothly enter between the pressure ring and the pressure ring.

[0033] During the welding process, the geotextile between the pressure ring and the pressure ring melts in a high temperature environment and is welded together under the mutual extrusion of the pressure ring and the pressure ring; the wind generated by the first fan and the second fan can blow to the upper and lower sides of the welded geotextile in the first time, so as to accelerate its cooling, shorten the condensation time, and avoid deformation or large wrinkles of the welded geotextile during the condensation process.

[0034] During local welding, the staff can hold the first handle and adjust the direction of movement of the application during welding at any time, and the staff can use the first handle or the second handle to press the application downward as a whole so that the force with which the pressure ring is pressed down to the ground is moderate.

[0035] The welding device of the present application has a compact structure, can be used for welding according to different working conditions, and can also perform controllable steering during the welding process, which can not only ensure good welding effects but also has the advantages of simple and convenient operation. It is very suitable for one-time forming welding of irregularly shaped geotextiles.

[0036] It should be understood that the above general description and the following detailed description are only exemplary and illustrative and do not limit the scope of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings below are part of the specification of the present application, which illustrate embodiments of the present application. The accompanying drawings, together with the description in the specification, are used to explain the principles of the present application.

[0038] Figure 1 This is a schematic diagram of the external structure of a one-step forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0039] Figure 2 This is one of the internal structure schematic diagrams of a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0040] Figure 3 A schematic structural diagram of a roller steering mechanism in a one-step welding device for geotextile welding provided in a specific embodiment of the present application.

[0041] Figure 4 This is one of the structural schematic diagrams of a welding assembly in a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0042] Figure 5 This is the second structural schematic diagram of the welding assembly in a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0043] Figure 6 This is a schematic structural diagram of the first long axis in a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0044] Figure 7 This is a schematic structural diagram of a driving device in a one-step welding device for geotextile welding provided in a specific embodiment of the present application.

[0045] Figure 8 A schematic diagram of the connection relationship between an S-shaped frame and a frame plate in a one-step forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0046] Figure 9 A structural schematic diagram of an integral welding supporting device in a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0047] Figure 10 This is the second schematic diagram of the internal structure of a one-step forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0048] Figure 11 A schematic diagram of the connection relationship between the wedge bracket and the frame plate in a one-step forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0049] Figure 12 A structural schematic diagram of a local welding supporting device in a one-time forming welding device for geotextile welding provided in a specific embodiment of the present application.

[0050] Description of reference numerals:

[0051] 1. Bracket; 11. Horizontal plate; 12. Diagonal brace; 13. First fan; 14. Rolling element;

[0052] 2. Shelf plate; 21. Through hole; 22. Step hole;

[0053] 3. Telescopic shaft;

[0054] 4. First handle; 41. Mounting hole; 42. Long rod; 43. Second handle;

[0055] 5. Locking mechanism; 51. Adjustment plate; 511. First threaded hole; 52. Screw;

[0056] 6. Roller steering mechanism; 61. Roller frame; 62. First spring; 63. Rectangular block; 64. Telescopic rod; 65. Support plate; 66. Roller;

[0057] 7. Adjustment mechanism; 71. Snap ring; 72. Hinge support; 73. Lever;

[0058] 8. Welding assembly; 81. Roller frame; 82. First long axis; 821. Wire; 822. U-shaped hole; 83. First electric heating roller; 831. Pressing ring; 832. Pressing strip; 84. Copper ring; 85. Brush holder; 851. Slideway; 86. Brush; 87. Second spring;

[0059] 9. Driving device; 91. Motor; 92. Driving sprocket; 93. Tension pulley; 931. Bearing seat; 932. Tension spring; 933. Joint block; 94. Driven sprocket; 95. Chain;

[0060] 10. Bushing;

[0061] 20. Controller; 201. First knob; 202. Second knob; 203. Third knob;

[0062] 30. Integral welding assembly; 301. S-shaped frame; 302. Lever assembly; 3021. Lever frame; 3022. Second long axis; 3023. Lever frame ring; 3024. Lever; 303. Electric heating assembly; 3031. Connecting block; 3032. Second fan; 3033. Support ear; 3034. Blind hole; 3035. Sliding support; 3036. Compression spring; 3037. Third long axis; 3038. Second electric heating roller; 3039. Pressure ring; 304. Air supply duct;

[0063] 40. Local welding supporting device; 401. Wedge bracket; 402. Electric heating wedge; 403. Torsion spring;

[0064] 100, first shell; 200, second shell; 300, third shell. DETAILED DESCRIPTION

[0065] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0066] like Figure 1 and Figure 2 As shown, the one-time forming welding device for geotextile welding provided in the embodiment of the present application includes a bracket 1, a frame plate 2, a telescopic shaft 3, a first handle 4, a locking mechanism 5, a roller steering mechanism 6, an adjustment mechanism 7, a welding assembly 8 and a drive device 9.

[0067] One end of the bracket 1 is fixedly connected to the frame plate 2 , and the other end thereof is fixedly connected to the shaft sleeve 10 , in which the telescopic shaft 3 is rotatably connected.

[0068] One end of the telescopic shaft 3 outside the sleeve 10 is slidably connected to the frame plate 2, and a locking mechanism 5 is provided at the sliding connection between the telescopic shaft 3 and the frame plate 2; the other end of the telescopic shaft 3 outside the sleeve 10 is provided with a roller steering mechanism 6.

[0069] A first handle 4 is mounted on the outside of the telescopic shaft 3. Specifically, one rod of the first handle 4 is rotatably connected to the telescopic shaft 3, near the end where the telescopic shaft 3 connects to the frame 2. Another rod of the first handle 4 is slidably connected to the telescopic shaft 3, near the sleeve 10. Thus, operating the first handle 4 allows both rotation of the end of the telescopic shaft 3 near the sleeve 10 and sliding of the end of the telescopic shaft 3 slidably connected to the frame 2.

[0070] An adjustment mechanism 7 is provided near the support rod in the first handle 4 that is rotatably connected to the telescopic shaft 3 and on the side opposite to the side where the telescopic shaft 3 is connected to the first handle 4 .

[0071] A welding assembly 8 is provided below the connection between the bracket 1 and the frame plate 2. The welding assembly 8 is connected to the adjustment mechanism 7. A driving device 9 is provided on the welding assembly 8. The driving device 9 is used to drive the welding assembly 8 to move.

[0072] By pushing the first handle 4, the adjustment mechanism 7 can be driven to adjust the upper and lower positions of the welding assembly 8 in the vertical direction, and the locking mechanism 5 can be used to lock the position of the welding assembly 8; by pulling the first handle 4, the roller steering mechanism 6 can be driven to change the overall running direction of the welding device of this application. When the first handle 4 is held and pressure is applied downward, the welded geotextile can be flattened during the condensation process.

[0073] Specifically, the bracket 1 includes a horizontal plate 11 and a diagonal brace 12. The angle between the horizontal plate 11 and the diagonal brace 12 is obtuse. The shaft sleeve 10 is welded to the end opposite the end where the horizontal plate 11 is connected to the diagonal brace 12. The angle between the shaft sleeve 10 and the horizontal plate 11 can be 45°, 60°, or 75°, with 60° being preferred, as this facilitates both processing control and overall structural design.

[0074] The ends of the diagonal braces 12 opposite to the ends connected to the cross plates 11 are fixedly welded to the frame plate 2 at a 90° angle. This simplifies the pre-welding process and facilitates the spatial arrangement of the overall structure. Of course, the diagonal braces 12 and the frame plate 2 can also be welded at other angles that are convenient for processing and spatial arrangement.

[0075] Specifically, a through hole 21 may be opened on the frame plate 2 , and one end of the telescopic shaft 3 away from the shaft sleeve 10 is passed through the through hole 21 and can slide freely in the through hole 21 .

[0076] In a specific embodiment, Figure 1 As shown, a mounting hole 41 is provided on the opposite side of the first handle 4 where the support rod is installed. A detachable long rod 42 is provided in the mounting hole 41 . A second handle 43 is connected to the opposite end of the long rod 42 where one end is connected to the mounting hole 41 .

[0077] When using the one-time forming welding device for geotextile welding provided by this application, the long rod 42 can be inserted into the mounting hole 41 as needed. In this way, during a long welding process, the worker does not need to keep squatting to work, and can hold the second handle 43 and crawl along with the welding device of this application. During the operation, the telescopic shaft 3 can also be controlled by the second handle 43 to rotate relative to the sleeve 10.

[0078] In a specific embodiment, Figure 2 As shown, the locking mechanism 5 includes an adjustment plate 51 and a screw 52. The adjustment plate 51 is fixedly connected to the end of the telescopic shaft 3 where it slides with the frame plate 2. The adjustment plate 51 is arranged parallel to the frame plate 2. The adjustment plate 51 is larger than the diameter of the telescopic shaft 3. A first threaded hole 511 is defined in the adjustment plate 51, located outside the telescopic shaft 3. The screw 52 is disposed in the first threaded hole 511. The bottom end of the screw 52 is coupled to the outer side of the end where the frame plate 2 slides with the telescopic shaft 3. Turning the screw 52 causes the adjustment plate 51 to slide relative to the frame plate 2.

[0079] In a specific embodiment, Figure 3 As shown, the roller-steering mechanism 6 includes a roller frame 61, a first spring 62, a rectangular block 63, a telescopic rod 64, a support plate 65, and a roller 66. The roller frame 61 is fixedly connected to the telescopic shaft 3, with the first spring 62 symmetrically mounted at the bottom of the roller frame 61 about the longitudinal axis of the telescopic shaft 3. The first spring 62 is connected to the bottom of the rectangular block 63. A telescopic rod 64 is disposed within the first spring 62. One end of the telescopic rod 64 is fixedly connected to the bottom of the roller frame 61, and the other end is fixedly connected to the rectangular block 63. A support plate 65 is connected to the bottom of the rectangular block 63, and a roller 66 is rotatably connected between the two support plates 65.

[0080] The rotation of the telescopic shaft 3 can control the turning of the roller 66. During the turning process of the roller 66, the cooperation between the first spring 62 and the telescopic rod 64 can make the roller 66 deflect more steadily, so as to turn more stably.

[0081] In a specific embodiment, Figure 2 As shown, the adjustment mechanism 7 includes a snap ring 71, a hinge support 72, and a lever 73. The snap ring 71 is located outside the end of the telescopic shaft 3 that is slidably connected to the frame plate 2. The hinge support 72 is located on the frame 1. The lever 73 is hingedly connected to the frame 1 via the hinge support 72. One end of the lever 73 is coupled to the snap ring 71, and the other end is connected to the welding assembly 8.

[0082] In this way, when the welding device of the present application is used, the telescopic shaft 3 is controlled to drive the clamping ring 71 to slide, and the clamping ring 71 will move the end of the lever 73, so that the lever 73 drives the roller frame 81 to swing.

[0083] In a specific embodiment, Figure 4 and Figure 5 As shown, the welding assembly 8 includes a roller frame 81, a first long shaft 82, a first electric heating roller 83, a copper ring 84, a brush holder 85, a brush 86, and a second spring 87. The roller frame 81 is connected to the lever 73. The first long shaft 82 is rotatably connected to the roller frame 81. The first electric heating roller 83 is sleeved on the first long shaft 82. The outer wall of the first electric heating roller 83 is sleeved with a pressure ring 831 with good thermal conductivity. The outer wall of the pressure ring 831 is provided with a continuous raised pressure strip 832. When the pressure strip 832 is expanded, it forms a continuous W shape.

[0084] Specifically, the pressure ring 831 is connected to the first electric heating roller 83 by an interference fit. The pressure ring 831 can be made of metal materials such as silver, copper, and aluminum. In the embodiment of the present application, copper is preferably used because it has both good thermal conductivity and good wear resistance. Copper is also much cheaper than silver. Therefore, copper is used to meet the performance requirements while being economical.

[0085] During use, the present application melts the surface of the welding material through the heated pressure strip 832, and at the same time, the pressure strip 832 is used to extrude the two parts of the material to be welded so that they are melted together to complete the welding; the interface after welding is also W-shaped. Such a welding interface can increase the welding area within the same welding length, thereby improving the welding strength, and can also effectively avoid defects such as bubbles inside the weld, because the continuous W-shaped pressure strip 832 can convert the linear feed motion into a W-shaped oblique feed motion during the welding process. During the welding process, the oblique feed can more easily expel the residual air between the two parts of the welding material during the extrusion process.

[0086] Located on the outside of the roller frame 81, two copper rings 84 are provided on the outside of one end of the first long shaft 82, and a brush holder 85 rotatably connected to the first long shaft 82 is provided on the outside of the copper ring 84. A slideway 851 is provided inside the brush holder 85 corresponding to the copper ring 84, and a brush 86 slidably connected to the copper ring 84 is provided inside the slideway 851. A second spring 87 is provided at the upper end of the brush 86, and the lower end of the brush 86 is in contact with the outer side surface of the copper ring 84.

[0087] Two wires 821 are installed inside the first long shaft 82, extending to the outside of the first long shaft 82. Each wire 821 is covered with a thermal insulation layer. One end of one wire 821 is connected to a copper ring 84, and its other end is connected to one power supply terminal of the first electric heating roller 83. The other wire 821 is connected to another copper ring 84, and its other end is connected to another power supply terminal of the first electric heating roller 83. By placing the wires 821 inside the first long shaft 82, the problem of entanglement between the first long shaft 82 and the wires 821 during rotation is avoided.

[0088] By energizing the brush 86 , the first long shaft 82 can continuously supply power to the wire 821 during the rotation process, so that the first electric heating roller 83 can continuously generate heat during the rotation process.

[0089] The driving device 9 is located outside the roller frame 81 and is connected to the outside of the other end of the first long shaft 82 .

[0090] Specifically, if Figure 6 As shown, the roller frame 81 may adopt an inverted U-shaped structure. A U-shaped hole 822 is provided inside the first long shaft 82 and extends to the outside of the first long shaft 82 . Two wires 821 are provided in the U-shaped hole 822 .

[0091] In a specific embodiment, Figure 7 As shown, the drive device 9 includes a motor 91, a driving sprocket 92, a tensioning pulley 93, a driven sprocket 94, and a chain 95. The motor 91 is located on the side where the frame plate 2 connects to the bracket 1, and is located below the bracket 1. A driving sprocket 92 is mounted on the output shaft of the motor 91, and a tensioning pulley 93 is located on the side of the driving sprocket 92 near the lever 73. The core shaft of the tensioning pulley 93 is rotatably connected to a bearing seat 931 at both ends. A tension spring 932 is fixedly connected to the end of the bearing seat 931. A hinge block 933 is welded to the end opposite the connection between the tension spring 932 and the bearing seat 931. The hinge block 933 is hinged to the bracket 1 via a hinge shaft. A driven sprocket 94 is located on the outside of the roller frame 81 and is connected to the other end of the first long axis 82. The driving sprocket 92, tensioning pulley 93, and driven sprocket 94 are located in the same plane and are connected by a chain 95. The driving sprocket 92 can drive the tensioning wheel 93 and the driven sprocket 94 to rotate through the chain 95.

[0092] Specifically, the driven sprocket 94 can be keyed to the first long shaft 82, and other convenient disassembly and assembly methods can also be used, such as threaded connection and spline connection. This embodiment preferably uses a key connection, which can ensure the reliability of the connection and simplify the processing technology.

[0093] In other embodiments, a first fan 13 is detachably connected to the bottom of the bracket 1, and a rolling body 14 is installed at the end opposite to the end connected to the bracket 1. The rolling body 14 can ensure that the welded geotextile can pass more smoothly.

[0094] After the first fan 13 is powered on, it can generate wind blowing in the direction of the first electric heating roller 83. The wind generated by the first fan 13 blows the excess heat generated around the first electric heating roller 83 to the geotextile to be welded, which can not only preheat the geotextile to be welded, but also prevent the temperature around the first electric heating roller 83 from being too high, causing the internal components to be in a high temperature environment for a long time and reducing their service life; and when the wind generated by the first fan 13 is blown to the surface of the geotextile to be welded, it can cause the geotextile to be welded to vibrate, and the geotextile to be welded can shake off the dust on the surface to be welded when vibrating, so that the subsequent welding can have better welding quality.

[0095] In other embodiments, a controller 20 of an adjustment and control circuit is installed on the side opposite to the side of the frame 2 connected to the motor 91. The controller 20 is electrically connected to the motor 91, the first fan 13 and the first electric heating roller 83. The outside of the controller 20 is correspondingly provided with a first knob 201, a second knob 202 and a third knob 203.

[0096] The first knob 201 is a wind speed adjustment knob, which adjusts the wind speed of the first fan 13 by adjusting the speed of the motor of the first fan 13; the second knob 202 is a motor 91 speed adjustment knob, which is used to adjust the speed of the motor 91; the third knob 203 is a power adjustment knob, which is used to adjust the power of the first electric heating roller 83.

[0097] like Figure 1 As shown, a first shell 100 is provided on the outer side of the frame plate 2, and a second shell 200 is provided below the first handle 4 and on the outer side of the bracket 1. The first shell 100 and the second shell 200 can prevent the internal parts from being directly exposed to the outside, and prevent rainwater and the like from directly entering the interior of the welding device of the present application, causing unexpected failure of the welding device of the present application; it can not only protect the internal parts of the welding device of the present application, but also increase the appearance of the welding device of the present application.

[0098] A third shell 300 is provided above the first electric heating roller 83. The third shell 300 is preferably made of a heat-insulating material with a higher temperature resistance grade. During operation, the third shell 300 can not only prevent the heat generated by the first electric heating roller 83 from being transferred to the outside of the motor 91, but also cooperate with the first fan 13 to blow the heat generated by the first electric heating roller 83 to the surface of the geotextile to be welded, so that the geotextile can achieve a better preheating effect before welding.

[0099] Specifically, if Figure 8 As shown, a number of step holes 22 are evenly opened on the end surface of the frame plate 2 opposite to the end connected to the telescopic shaft 3. Matching devices can be connected through the step holes 22. This design can expand the application scope of the welding device of this application.

[0100] Specifically, the supporting device may be an integral welding supporting device 30 .

[0101] like Figure 9 and Figure 10 As shown, the integrated welding assembly 30 includes an S-shaped frame 301, a lever assembly 302, and an electric heating assembly 303. Several second threaded holes corresponding to the stepped holes 22 are formed on the top surface of the S-shaped frame 301. The frame plate 2 is removably connected to the S-shaped frame 301 via the stepped holes 22, the second threaded holes, and screws. While the frame plate 2 and the S-shaped frame 301 can also be connected using other convenient methods, the preferred screw connection in this embodiment offers advantages such as simple structure, reliable connection, and easy assembly and disassembly.

[0102] Figure 8 The direction indicated by the middle arrow is the moving direction of the welding device of the present application, wherein the lever assembly 302 is connected to the front side of the S-shaped frame 301 along the moving direction of the welding device of the present application, and the electric heating assembly 303 is connected to the rear side of the S-shaped frame 301 along the moving direction of the welding device of the present application.

[0103] Specifically, the lever assembly 302 includes a lever frame 3021, a second long axis 3022, a lever frame ring 3023, and a lever 3024. One end of the lever frame 3021 is connected to the S-shaped frame 301, and the other end is rotatably connected to the second long axis 3022. The lever frames 3023 are located on either side of the lever frame 3021. A cylindrical lever 3024 is rotatably connected between the opposing inner surfaces of the two lever frame rings 3023. Figure 8The dotted line in the figure is the movement trajectory of the geotextile. During the operation of the welding device of the present application, before the geotextile is welded, the geotextile passes above and below the lever 3024 respectively. The lever 3024 will revolve around the lever frame 3021 along with the lever frame ring 3023 and the second long axis 3022, and the lever 3024 itself will also rotate. During the rotation process, the lever 3024 can smooth out the wrinkles on the surface of the geotextile to be welded, and can also remove foreign matter such as dust attached to the surface of the geotextile to be welded to prevent it from affecting the welding effect.

[0104] The electric heating assembly 303 includes a connecting block 3031, a second fan 3032, and support ears 3033. The connecting block 3031 is welded to the rear side of the S-shaped frame 301 along the direction of travel of the welding apparatus. The second fan 3032 is provided on the side of the connecting block 3031 away from the S-shaped frame 301. Located below the first electric heating roller 83 and along the length of the first longitudinal axis 82, two raised support ears 3033 are provided on the connecting block 3031. An air supply channel 304 is formed between the two support ears 3033. The air generated by the second fan 3032 is effectively transmitted through the air supply channel 304 to the surface of the geotextile on the side of the connecting block 3031 closest to the S-shaped frame 301.

[0105] A blind hole 3034 is formed inside the support ear 3033. A sliding support 3035 is slidably connected to the blind hole 3034. A compression spring 3036 is provided between the bottom end of the sliding support 3035 and the bottom of the blind hole 3034. A third long shaft 3037 is connected between the two sliding supports 3035. Applying pressure to the third long shaft 3037 can squeeze the compression spring 3036 toward the bottom of the sliding support 3035 through the sliding support 3035.

[0106] Corresponding to the first electric heating roller 83, a second electric heating roller 3038 is sleeved on the outer wall of the third long axis 3037. The second electric heating roller 3038 is connected in parallel with the first electric heating roller 83 via a switching circuit. A pressure ring 3039 with good thermal conductivity is sleeved on the outer wall of the second electric heating roller 3038. During operation, when the pressure ring 831 on the first electric heating roller 83 presses against the second electric heating roller 3038, the pressure ring 3039 and the pressure ring 831 elastically compress the two geotextiles to be welded, completing the welding process.

[0107] Specifically, the supporting device may also be a local welding supporting device 40 .

[0108] like Figure 11 and Figure 12As shown, the local welding assembly 40 includes a wedge bracket 401 and an electric heating wedge 402. Several third threaded holes corresponding to the stepped holes 22 are formed on the top surface of the wedge bracket 401. The frame plate 2 is removably connected to the wedge bracket 401 through the stepped holes 22, the third threaded holes, and screws. Of course, the frame plate 2 and the wedge bracket 401 can also be connected using other convenient methods; however, the preferred screw connection in this embodiment offers advantages such as simple structure, reliable connection, and easy assembly and disassembly.

[0109] An electric heating wedge 402 is rotatably connected to the bottom surface of the wedge bracket 401. The electric heating wedge 402 is connected in parallel to the first electric heating roller 83 via a switching circuit. The cross-sectional shape of the electric heating wedge 402 is preferably a flat, sheet-like wedge structure. Of course, other structures that are convenient for processing and installation can also be configured, such as a round rod or rectangular strip. The preferred wedge structure in this embodiment makes it easier to slide between the two geotextiles. The larger the contact area between the wedge surface and the geotextile, the easier it is to transfer heat to the geotextile, making it easier to weld.

[0110] A torsion spring 403 is provided on the outside of the rotating shaft where the lower end surface of the wedge bracket 401 is rotatably connected to the electric heating wedge 402. When the electric heating wedge 402 is not subjected to an external force greater than the torsion of the torsion spring 403, the electric heating wedge 402 always maintains an angle perpendicular to the side of the wedge bracket 401. When the damaged part of the geotextile is repaired by welding, the small piece of geotextile used for repair welding may be round, elliptical or other shapes depending on the shape of the damaged area. In short, the welding route is a closed loop. The electric heating wedge 402 needs to be inserted between the small piece of geotextile and the original geotextile to heat and form a complete closed loop. When the repair welding is about to be completed, that is, the electric heating wedge 402 slides to the starting point of the repair welding, the starting point of the repair welding will prevent the electric heating wedge 402 from continuing to slide forward. After encountering resistance, the electric heating wedge 402 will twist the torsion spring 403 and rotate until it slides out of the starting point of the repair welding and then automatically resets under the action of the torsion spring 403.

[0111] The welding device of the present application can be used for welding the entire geotextile as well as for local welding of the geotextile. That is, during the welding process of the geotextile, it is necessary to avoid buried pipelines in the construction environment, so local welding is required around the pipelines, or after the overall welding of the geotextile is completed, local repair welding is also required when the geotextile is partially broken due to unexpected external force.

[0112] The specific process of using the welding device of this application to carry out the overall welding construction of geotextile is as follows:

[0113] Before welding, install the S-shaped frame 301 below the frame plate 2, and then pass the two geotextiles to be welded through the upper and lower sides of the push rod frame ring 3023 and then through the S-shaped frame 301, and splice them between the pressure ring 3039 and the pressure ring 831 (as shown in the figure). Figure 10 As the geotextile passes through the push rod ring 3023, the push rod 3024 can smooth out wrinkles on the surface of the geotextile to be welded. It can also remove dust and other foreign matter adhering to the surface of the geotextile to be welded, preventing it from affecting the welding effect. The S-shaped frame 301 guides the geotextile to be welded smoothly between the pressure ring 3039 and the pressure ring 831.

[0114] Turn on the external power supply, and then adjust the power of the first electric heating roller 83 to the maximum through the third knob 203 to preheat the first electric heating roller 83. After preheating, adjust the power of the first electric heating roller 83 to the normal operating power; then adjust the speed of the motor 91 to the set value through the second knob 202, and the motor 91 will drive the first electric heating roller 83 and the pressure ring 831 to rotate, and then push the first handle 4 upward to press the pressure ring 831 down to the pressure ring 3039. At the same time, adjust the downward pressure of the pressure ring 831 through the screw 52 and lock the first handle 4 to slide downward, and then turn on the first fan 13 and the second fan 3032.

[0115] The geotextile between the pressure ring 3039 and the pressure ring 831 melts in a high temperature environment and is welded together under the mutual extrusion of the pressure ring 3039 and the pressure ring 831; the wind generated by the first fan 13 and the second fan 3032 can blow to the upper and lower sides of the welded geotextile in the first time, accelerating its cooling, thereby shortening the condensation time and avoiding deformation or large wrinkles of the welded geotextile during the condensation process.

[0116] The wind generated by the first fan 13 and the second fan 3032 can also blow the excess heat generated around the first electric heating roller 83 to the geotextile to be welded, which can not only preheat the geotextile to be welded, but also prevent the temperature around the first electric heating roller 83 from being too high, causing the internal components to be in a high temperature environment for a long time and reducing their service life; and when the wind generated by the first fan 13 and the second fan 3032 is blown to the surface of the geotextile to be welded, the geotextile to be welded can be vibrated, and the geotextile to be welded can shake off the dust on the surface to be welded when vibrating, so that the subsequent welding has better welding quality.

[0117] During the welding process of the geotextile, as the first electric heating roller 83 drives the pressure ring 831 to rotate, the present application will generate backward friction on the geotextile and drive the present application to move forward as a whole, while the pressure ring 3039 drives the second electric heating roller 3038 to rotate together. During the overall forward movement of the present application, the welded geotextile will finally be subjected to the pressure of the roller 66 and laid on the ground. The roller 66 can flatten the wrinkles generated at the weld seam of the welded geotextile, and the roller 66 can be rotated by pulling the first handle 4 during the welding process, so that the present application can be turned according to the specific working conditions during the welding process, and the long rod 42 can also be inserted into the mounting hole 41 of the first handle 4 as needed. In this way, during a long welding process, the staff does not need to keep squatting to work, and can hold the second handle 43 and follow the welding device of the present application to perform welding operations, and can also rotate the roller 66 through the second handle 43 during the operation.

[0118] The specific process of using the welding device in this application to carry out welding construction of geotechnical structure is as follows:

[0119] Before the welding construction of the geotextile layout, the wedge bracket 401 is installed under the frame plate 2, and then the entire application is placed on the outside of the geotextile that needs local welding, and then the geotextile for local welding is placed above the geotextile that needs local welding, and finally the electric heating wedge 402 is inserted between the two geotextiles; the electric heating wedge 402 can not only preheat the geotextile for local welding in advance, but also smooth the two geotextiles.

[0120] After the external power supply is turned on, the power of the first electric heating roller 83 and the electric heating wedge 402 is adjusted to the maximum through the third knob 203 to preheat the first electric heating roller 83 and the electric heating wedge 402. After the preheating is completed, the power of the first electric heating roller 83 and the electric heating wedge 402 is adjusted to the normal operating power. The speed of the motor 91 is then adjusted to the set value through the second knob 202. The motor 91 will drive the first electric heating roller 83 and the pressure ring 831 to rotate. The first handle 4 is then pushed upward to press the pressure ring 831 down to the ground. At the same time, the downward pressure of the pressure ring 831 is adjusted through the screw 52 to lock the first handle 4 from sliding downward, and then the first fan 13 is turned on.

[0121] During local welding, the staff can hold the first handle 4 and adjust the direction of movement of the application during the welding process at any time, and the staff can use the first handle 4 to press the application downward as a whole according to the actual working conditions, so that the pressure ring 831 is pressed down to the ground with moderate force.

[0122] As the first electric heating roller 83 drives the pressure ring 831 to rotate, the present application will generate backward friction on the geotextile and drive the present application to move forward as a whole. When the local welding is about to be completed, the starting point of the local welding has completed condensation, and the welded geotextile will block the electric heating wedge 402 from continuing to move forward. After encountering resistance, the electric heating wedge 402 will twist the torsion spring 403 and rotate, and then slide out of the starting point of the repair welding. The present application continues to move forward until the welding is completed.

[0123] The welding device of the present application has a compact structure and can be used for welding according to different working conditions. It can be used for both the overall welding of geotextiles and for partial welding of geotextiles. In addition, during the welding process, the welding device of the present application can also be controlled to turn, which can not only ensure good welding results but also has the advantages of simple and convenient operation. It is very suitable for the one-time welding of irregularly shaped geotextiles.

[0124] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0125] It should be noted that, in the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0126] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0127] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A one-step forming welding device for geotextile welding, characterized in that: It includes a bracket, a frame plate, a telescopic shaft, a first handle, a locking mechanism, a roller-steering mechanism, an adjustment mechanism, a welding assembly and a driving device; One end of the bracket is fixedly connected to the frame plate, and the other end thereof is fixedly connected to a shaft sleeve, and the telescopic shaft is rotatably connected to the shaft sleeve; One end of the telescopic shaft located outside the shaft sleeve is slidably connected to the frame plate, and the locking mechanism is provided at the sliding connection between the telescopic shaft and the frame plate; The other end of the telescopic shaft outside the shaft sleeve is provided with the roller steering mechanism; Located outside the telescopic shaft, the first handle is mounted on the telescopic shaft; one support rod of the first handle is rotatably connected to the telescopic shaft and is close to the end of the telescopic shaft connected to the frame plate; the other support rod of the first handle is slidably connected to the telescopic shaft and is close to the shaft sleeve; The adjustment mechanism is provided on a support rod in the first handle that is rotatably connected to the telescopic shaft and on a side of the telescopic shaft opposite to the side where the first handle is connected; The welding assembly is provided below the connection between the bracket and the frame plate, the welding assembly is connected to the adjustment mechanism, and a driving device is provided on the welding assembly, and the driving device is used to drive the welding assembly to move; The driving device is used to adjust the upper and lower positions of the welding assembly in the vertical direction, the locking mechanism is used to lock the position of the welding assembly; and the roller steering mechanism is used to change the running direction.

2. The one-step forming welding device for geotextile welding according to claim 1, characterized in that: The locking mechanism includes an adjustment plate and a screw, wherein the adjustment plate is fixedly connected to the end portion of the telescopic shaft and the frame plate at one end of the sliding connection, and the adjustment plate is arranged parallel to the frame plate; A first threaded hole is formed on a portion of the adjustment plate outside the telescopic shaft. The screw is arranged in the first threaded hole. The bottom end of the screw is coupled to the outer side surface of one end of the frame plate and the telescopic shaft that are slidably connected.

3. The one-step forming welding device for geotextile welding according to claim 1, characterized in that: The roller steering mechanism includes a roller frame, a first spring, a rectangular block, a telescopic rod, a support plate and a roller; the roller frame is fixedly connected to the telescopic shaft, with the axis in the length direction of the telescopic shaft as the axis of symmetry, the first spring is symmetrically installed at the bottom of the roller frame, the bottom of the first spring is connected to the rectangular block, the telescopic rod is arranged inside the first spring, one end of the telescopic rod is fixedly connected to the bottom of the roller frame, and the other end thereof is fixedly connected to the rectangular block; the bottom of the rectangular block is connected to the support plate, and the roller is rotatably connected between the two support plates.

4. The one-step forming welding device for geotextile welding according to claim 1, characterized in that: The adjustment mechanism includes a snap ring, a hinge support and a lever; the snap ring is arranged on the outside of one end of the telescopic shaft that is slidably connected to the frame plate, the hinge support is arranged on the bracket, the body of the lever is hinged to the bracket through the hinge support, one end of the lever is coupled to the snap ring, and the other end is connected to the welding assembly.

5. The one-step forming welding device for geotextile welding according to claim 4, characterized in that: The welding assembly includes a roller frame, a first long shaft, a first electric heating roller, a copper ring, a brush holder, a brush, and a second spring; the roller frame is connected to a lever, the first long shaft is rotatably connected to the roller frame, the first electric heating roller is sleeved on the first long shaft, a pressure ring is sleeved on the outer wall of the first electric heating roller, and a continuous raised pressure strip is provided on the outer wall of the pressure ring; Located on the outside of the roller frame, two copper rings are provided on the outside of one end of the first long axis, and the brush holder rotatably connected to the first long axis is provided on the outside of the copper ring. A slideway is provided inside the brush holder corresponding to the copper ring, and the brush slidably connected to the copper ring is provided inside the slideway. The upper end of the brush is provided with the second spring, and the lower end of the brush is in contact with the outer side surface of the copper ring. Two wires are provided inside the first long shaft and extend to the outside, wherein one end of one of the wires is connected to one of the copper rings, and the other end thereof is connected to one power-on terminal of the first electric heating roller; and one end of the other wire is connected to the other copper ring, and the other end thereof is connected to the other power-on terminal of the first electric heating roller.

6. The one-step forming welding device for geotextile welding according to claim 5, characterized in that: The driving device includes a motor, a driving sprocket, a tensioning wheel, a driven sprocket and a chain; the driving sprocket is mounted on the output shaft of the motor, and the tensioning wheel is arranged on the side of the driving sprocket close to the lever; The two ends of the core shaft of the tensioning wheel are rotatably connected to the bearing seat, the end of the bearing seat is fixedly connected to the tension spring, and the opposite end of the tension spring and the bearing seat connection end is welded with a hinge block, and the hinge block is hinged to the bracket through a hinge shaft; Located on the outside of the roller frame, the driven sprocket is connected to the other end of the first long axis; the driving sprocket, the tensioning wheel and the driven sprocket are located in the same plane and are connected by a chain; the driving sprocket drives the tensioning wheel and the driven sprocket to rotate through the chain.

7. The one-step forming welding device for geotextile welding according to claim 5, characterized in that: The device further includes an integral welding supporting device, the integral welding supporting device including an S-shaped frame, a lever assembly, and an electric heating assembly, the S-shaped frame being connected to an end surface of the frame plate opposite to the end connected to the telescopic shaft; the lever assembly being connected to the front side of the S-shaped frame along the direction of travel, and the electric heating assembly being connected to the rear side of the S-shaped frame along the direction of travel; The derailleur assembly includes a derailleur frame, a second long shaft, a derailleur frame ring, and a derailleur; one end of the derailleur frame is connected to the S-shaped frame, and the other end thereof is rotatably connected to the second long shaft, located on the left and right sides of the derailleur frame, and the derailleur frame rings are provided at both ends of the second long shaft, and the derailleur frame rings are rotatably connected between the opposite inner sides of the two derailleur frame rings; The electric heating assembly includes a connecting block, a second fan, and a supporting ear; the connecting block is welded to the rear side of the S-shaped frame along the travel direction, and the second fan is provided on the side of the connecting block away from the S-shaped frame; two protruding supporting ears are provided on the connecting block below the first electric heating roller and along the length direction of the first major axis, forming an air supply channel between the two supporting ears; A blind hole is opened inside the supporting ear, a sliding support is slidably connected in the blind hole, a compression spring is provided between the bottom end of the sliding support and the bottom of the blind hole; a third long axis is connected between the two sliding supports; Corresponding to the first electric heating roller, a second electric heating roller is sleeved on the outer wall of the third long shaft. The second electric heating roller is connected in parallel with the first electric heating roller through a switching circuit. A pressure ring is sleeved on the outer wall of the second electric heating roller.

8. The one-step forming welding device for geotextile welding according to claim 5, characterized in that: It also includes a local welding supporting device, which includes a wedge bracket and an electric heating wedge; the wedge bracket is connected to the end face of the frame plate opposite to the end of the telescopic shaft, and the electric heating wedge is rotatably connected to the bottom surface of the wedge bracket. The electric heating wedge is connected in parallel to the first electric heating roller through a switching circuit; a torsion spring is provided on the outside of the rotating shaft where the lower end face of the wedge bracket is rotatably connected to the electric heating wedge.

9. The one-step forming welding device for geotextile welding according to claim 6, characterized in that: A first fan is detachably connected to the bottom of the bracket, and a rolling body is installed at the end opposite to the end where the first fan is connected to the bracket.

10. The one-step forming welding device for geotextile welding according to claim 9, characterized in that: A controller for regulating and controlling the circuit is mounted on a side of the frame opposite to the side connected to the motor. The controller is electrically connected to the motor, the first fan, and the first electric heating roller. A first knob, a second knob, and a third knob are correspondingly arranged on the outer side of the controller. The first knob is used to adjust the wind speed of the first fan; the second knob is used to adjust the rotation speed of the motor; and the third knob is used to adjust the power of the first electric heating roller.

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