Composite plastic pipe edge rolling welding device

Abstract

The invention discloses a composite plastic pipe edge rolling welding device, and relates to the technical field of composite plastic pipe machining. Comprising a machine box, a feeding mechanism, a rolling machine, a welding flux feeding mechanism, a beveling device and a welding mechanism, the feeding mechanism, the rolling machine, the beveling device, the welding flux feeding mechanism and the welding mechanism are sequentially installed on the machine box in the machining direction of the composite plastic pipe, the feeding mechanism comprises a first box cover installed on the machine box, and a hinge block is fixed to the top of the first box cover; the bottoms of the hinge blocks are elastically hinged to abutting rods. Through the arrangement of the feeding mechanism, the welding flux feeding mechanism, the beveling device and the like, in the using process of the device, a raw material sheet and a round pipe subjected to edge rolling can be limited through an abutting rod at the feeding mechanism, and access of subsequent automatic welding is facilitated; and the compound plastic pipe is provided with a groove through the groove opening device and is filled with the same metal pipe material as the compound plastic pipe, so that the integrity after welding can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic-reinforced pipe processing, in particular to a plastic-reinforced pipe rolling and welding device. Background Art

[0002] Plastic-coated pipe is a new type of pipe, which is composed of metal pipe and plastic layer. It combines the strength of metal pipe and the corrosion resistance of plastic pipe. It is widely used in building water supply and drainage, oil and gas transportation, chemical industry, municipal engineering and other fields.

[0003] During the processing of the plastic-coated tube, the metal tube is usually formed by cold-rolling and rolling the raw material sheet, and the metal tube is processed by welding and seaming. However, the traditional welding method is prone to produce higher welds, and because the solder material and the metal tube material are not uniform, the subsequent cleaning and processing are troublesome. The solder problem may also cause doubts about the strength of the weld. Therefore, in response to this situation, the present invention proposes a new solution. Summary of the invention

[0004] The object of the present invention is to provide a plastic-reinforced tube curling welding device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a plastic-reinforced tube rolling welding device, comprising: The chassis, the feeding mechanism, the rolling machine, the soldering mechanism, the groove opening device and the welding mechanism are installed on the chassis in sequence along the processing direction of the plastic-reinforced pipe; The feeding mechanism comprises a box cover 1 mounted on the chassis, a hinge block is fixed on the top of the box cover 1, a push rod is elastically hinged on the bottom of the hinge block, and when the raw material sheet passes through the lying axis, the end of the push rod pushes against the top surface of the raw material sheet; The cutting device comprises a cutting blade, which is directly opposite to the seam of the circular tube. When the circular tube passes through the cutting blade, the cutting blade cuts the seam of the circular tube into an inverted cone shape. The cutting blade cuts the seam of the circular tube into an inverted cone shape.

[0006] Furthermore, regarding this scheme, the interior of the box cover is hollow and passes through the feeding and discharging directions of the raw material sheets, at least two rollers are rotatably installed between the inner walls at both ends of the box cover close to the feeding end of the raw material sheets, the plane formed by the axes of the two rollers is parallel to the horizontal plane, an adjustment handle is screwed on the top of the box cover, a top cover is rotatably installed on the bottom end of the rod body of the adjustment handle, the top cover slides between the two sides of the box cover, and a pressure roller is rotatably installed on the bottom of the top cover, so that the raw material sheets can pass smoothly through the feeding port through the cooperation of the pressure roller and the roller.

[0007] Further to this solution, the discharge end of the box cover 1 is provided with two side panels, the two side panels are installed on the chassis, and a lying shaft is rotatably installed between the two side panels. After the raw material sheet passes through roller 1, it passes through the lying shaft again, and the axes of the two lying shafts are perpendicular to the axis of roller 1.

[0008] Further to this solution, the end of the push rod is located on the lying shaft, and the push rod can rotate along the connection point with the hinge block toward a roller, and the upper soldering mechanism includes box cover two, and the beveling device is arranged between box cover one and box cover two.

[0009] Furthermore, regarding this solution, two rollers are also rotatably installed between the inner walls on both sides of the second box cover, two adjustment handles are screwed on the top of the second box cover, two top covers are also rotatably installed at the bottom of the rod body of the two adjustment handles, and two pressure rollers are also rotatably installed at the bottom of the two top covers.

[0010] Further to this scheme, a slide groove is provided on the second box cover, and the beveling device also includes a positioning plate, one end of the positioning plate passes through the slide groove and is fixed to the second top cover, and the other end of the fixing plate is fixed with a mounting frame, and the mounting frame is used to install a blade cover of the cutting blade, and the cutting blade side rotates at the blade cover, and a driving source 2 for driving the cutting blade is installed on the mounting frame.

[0011] Further to this solution, a fixing plate is fixed on the chassis, a vertical limiting groove is opened on the fixing plate, screws are slidably installed in the limiting groove, and the screws are used to fasten the mounting frame.

[0012] Furthermore, two discharge shafts are rotatably installed between the inner walls on both sides of the second box cover. The discharge shafts are located directly above the travel path of the circular tube. The axes of the two discharge shafts are parallel to the axis of the second roller. Clamp rings are fixed on the surfaces of the two discharge shafts, and concave rings are provided at the clamp rings. The nearest notches of the two clamp rings form a channel.

[0013] Furthermore, regarding this scheme, the clamping ring is made of rubber, and the channel opening formed between the clamping rings is slightly smaller than the diameter of the solder. An inlet is provided at the top of the box cover 2, and the inlet is directly opposite to the channel opening formed by the clamping ring, so as to facilitate the transportation of the solder. A pressing shaft is also provided at the outlet end of the box cover 2, and the pressing shaft is rotatably installed between the inner walls on both sides of the box cover 2, and the pressing shaft just rolls on the formed rolled round tube.

[0014] Further with respect to this solution, the welding mechanism includes a robotic arm, at the end of which is provided a laser welding head, the laser welding head being arranged obliquely along the traveling direction of the raw material sheet.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The plasticized tube rolling welding device is provided with a feeding mechanism, a welding mechanism and a beveling device. During use, the device can limit the raw material sheet and the rolled round tube through the support rod at the feeding mechanism, so as to facilitate the access of subsequent automatic welding. In addition, the plasticized tube is opened with a slit device and filled with the same material as the metal tube in the plasticized tube, which can improve the integrity after welding and improve the welding strength.

[0016] At the same time, through the setting of the feeding mechanism, the upper solder structure and the beveling device, the device has a high degree of automation, can continuously realize the welding process of the metal tube in the plastic-reinforced tube, and improve the metal tube forming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the feeding mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the soldering mechanism of the present invention; Figure 4 It is a schematic diagram of the position structure of the beveling device of the present invention; Figure 5 It is a structural schematic diagram of the cutting blade position and the round tube position after rolling of the present invention.

[0018] In the figure: 1, chassis; 2, feeding mechanism; 201, box cover 1; 202, roller 1; 203, top cover 1; 204, pressure roller 1; 205, adjustment handle 1; 206, hinge block; 207, push rod; 208, side plate; 209, lying shaft; 210, driving source 3; 3, rolling machine; 4, soldering mechanism; 401, box cover 2; 402, unloading shaft; 4021, clamp ring; 403, pressure shaft; 4 04, roller two; 405, driving source one; 406, top cover two; 407, pressure roller two; 408, adjustment handle two; 409, feed port; 5, beveling device; 501, fixing plate; 5011, limiting groove; 502, positioning plate; 503, cutting blade; 504, mounting frame; 505, driving source two; 506, screw; 6, welding mechanism; 601, mechanical arm; 602, laser welding head. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] like Figure 1As shown, the present invention provides a technical solution: a plastic tube rolling welding device, comprising a chassis 1, a feeding mechanism 2, a rolling machine 3, an upper soldering mechanism 4, a groove opening device 5 and a welding mechanism 6, the feeding mechanism 2, the rolling machine 3, the groove opening device 5, the upper soldering mechanism 4 and the welding mechanism 6 are sequentially installed on the chassis 1 along the processing direction of the plastic tube, and the raw material sheet of the plastic tube after rolling enters the welding device from the feeding mechanism 2, and the raw material sheet is guided to the rolling machine 3 at the feeding mechanism 2, and is passed through the feeding mechanism 2. The raw material sheets are positioned to avoid positional displacement of the raw material sheets during subsequent processing. After passing through the feeding mechanism 2, the raw material sheets are rolled into tubes under the action of the rolling machine 3. The rolling machine 3 is a common round tube rolling equipment on the market and will not be described here. After the tube is rolled by the rolling machine 3, the seam of the round tube is opened by the beveling device 5 to improve the welding environment at the seam of the round tube. While continuing to transport, the upper soldering mechanism 4 adds solder to the seam of the rolled tube, and the seam of the plasticized tube is welded by the welding mechanism 6.

[0021] like Figure 1 and Figure 2 As shown, in order to ensure the smooth implementation of the above embodiment, it is necessary to understand that the feeding mechanism 2 includes a box cover 201 installed on the chassis 1, the box cover 201 is hollow inside and passes through the feeding and discharging directions of the raw material sheet, at least two rollers 202 are rotatably installed between the inner walls of the two ends of the box cover 201 close to the feeding end of the raw material sheet, and the plane formed by the axes of the two rollers 202 is parallel to the horizontal plane, and an adjustment handle 205 is screwed on the top of the box cover 201, and a top cover 203 is rotatably installed at the bottom end of the rod body of the adjustment handle 205. 203 slides between the two sides of the box cover 201, and the adjusting handle 205 is screwed to the connection part of the box cover 201, that is, when the adjusting handle 205 is rotated, the height of the top cover 203 in the box cover 201 can be controlled, and a pressure roller 204 is rotatably installed at the bottom of the top cover 203, and the cooperation of the pressure roller 204 and the roller 202 allows the raw material sheet to pass smoothly through the feeding port 409. A driving source 3 210 is arranged on one side of the box cover 201, and the driving source 3 210 is used to drive one of the rollers 202 to rotate; like Figure 2As shown, then, the raw material sheet continues to be transported forward, and two side panels 208 are arranged at the discharge end of the box cover 201, and the two side panels 208 are installed on the chassis 1, and a lying shaft 209 is rotatably installed between the two side panels 208. After the raw material sheet passes through the roller 202, it passes through the lying shaft 209 again. The axes of the two lying shafts 209 are perpendicular to the axis of the roller 202, and the support formed by the two lying shafts 209 just supports both sides of the raw material sheet, and a hinge block 206 is fixed on the top of the box cover 201, and a support rod 207 is elastically hinged at the bottom of the hinge block 206, and the end of the support rod 207 is located at the lying On the shaft 209, that is to say, the support rod 207 can rotate along the connection point with the hinge block 206 toward the roller 202, and remain stable under the obstruction of the lying shaft 209. When the raw material sheet passes through the lying shaft 209, the end of the support rod 207 rests on the top surface of the raw material sheet. Through this structural setting, the raw material sheet can always maintain a stable position when it is rolled by the rolling machine 3. In short, when the raw material sheet is rolled, the weld seam of the round tube can always face upwards, so that the support rod 207 can be stuck at the seam to limit the round tube, which is convenient for subsequent solder filling and welding operations of the round tube.

[0022] like Figure 1 and Figure 3 As shown, after the positioning and rolling of the raw material sheet are completed, the rolled round tube is cut open. Under the positioning effect of the feeding mechanism 2, the weld of the round tube is always facing upward. The upper soldering mechanism 4 includes a box cover 201, and the beveling device 5 is arranged between the box cover 1 201 and the box cover 2 401. The beveling device includes a cutting blade 503. The cutting blade 503 is directly opposite to the seam of the round tube. When the round tube passes through the cutting blade 503, the cutting blade 503 cuts it. The cross-section of the cutting blade 503 is inverted cone shape, which can cut the seam of the round tube into an inverted cone shape. It should be understood that in the process of cutting the round tube, the cutting of the cutting blade 503 does not penetrate the inner and outer walls of the round tube to avoid welding corrosion.

[0023] like Figure 3 As shown, after the opening is achieved, the round tube enters the feeding mechanism 2, and rollers 404 are also rotatably installed between the inner walls of the box cover 401 on both sides, and an adjusting handle 408 is screwed on the top of the box cover 401, and a top cover 406 is also rotatably installed at the bottom of the rod body of the adjusting handle 408, and a pressure roller 407 is also rotatably installed at the bottom of the top cover 406. After the opening is made on the round tube, the round tube is limited by rollers 404 and pressure rollers 407 to keep it stable.

[0024] like Figure 3 and Figure 4As shown, it should be understood that a slide groove is provided on the box cover 401, and the beveling device 5 also includes a positioning plate 502, one end of the positioning plate 502 passes through the slide groove and is fixed to the top cover 406, and the other end of the fixing plate 501 is fixed with a mounting frame 504, and the mounting frame 504 is used to install a knife cover of the cutting blade 503, and the cutting blade 503 is rotated at the knife cover. In addition, a driving source 505 for driving the cutting blade 503 is installed at the mounting frame 504, and the cutting blade 503 follows the lifting and lowering of the top cover 406. The height is adjusted, and the surfaces of roller 2 404 and pressure roller 403 are both set to an arc shape that matches the surface of the rolled tube. When the pressure roller 403 is attached to the surface of the tube, it can limit the tube well. That is to say, the height position of the cutting blade 503 can be adjusted by adjusting the position of the top cover 2 406. A fixing plate 501 is fixed on the chassis 1, and a vertical limiting groove 5011 is provided on the fixing plate 501. A screw 506 is slidably installed at the limiting groove 5011, and the screw 506 is used to fasten the mounting frame 504.

[0025] like Figure 3 As shown, two feeding shafts 402 are rotatably installed between the inner walls of both sides of the box cover 401. The feeding shafts 402 are located just above the travel route of the round tube. The axes of the two feeding shafts 402 are parallel to the axis of the roller 404. Clamp rings 4021 are fixed on the surfaces of the two feeding shafts 402. Concave rings are arranged at the clamp rings 4021. The concave rings are arranged at the clamp rings 4021. The concave rings are arranged at the closest points of the two clamp rings 4021 to form a channel. The solder is placed at the seam of the round tube through the formed solder. It should be understood that the clamp rings 4021 are made of rubber. When the solder passes through the clamp rings 4021, there is enough friction between the clamp rings 4021. That is to say, the channel opening formed between the clamp rings 4021 is slightly smaller than the diameter of the solder. In this case, the solder is clamped for transportation. It is relatively stable and controllable, with better effect. The solder is the same material as the raw material sheet to improve the integrity. An inlet 409 is provided on the top of the box cover 401. The inlet 409 is directly opposite to the channel opening formed by the clamping ring 4021, which is convenient for solder transportation. A pressing shaft 403 is also provided at the outlet end of the box cover 401. The pressing shaft 403 is rotatably installed between the inner walls on both sides of the box cover 401, and the pressing shaft 403 just rolls on the formed rolled round tube, which can limit the solder to prevent the rolled round tube from escaping from the seam of the round tube during the forward traction process. The solder is provided at the seam, which can also reduce the height of the subsequent weld and reduce the difficulty of processing. A driving source 405 is provided on one side of the box cover 401, and the driving source 405 is used to drive one of the rollers 404 to rotate.

[0026] Replay Figure 1To ensure the smooth implementation of the above embodiment, it is necessary to understand that after the solder is filled, the welding of the coiled tube is achieved through the welding mechanism 6. The welding mechanism 6 includes a robotic arm 601. A laser welding head 602 is provided at the end of the robotic arm 601. The laser welding head 602 realizes laser welding of the round tube.

[0027] In summary, combined Figure 1 and Figure 5 , place the raw material sheet of the plasticized tube at the feeding mechanism 2, and through the cooperation of the roller 202 and the pressure roller 204, as well as the limiting of the push rod 207, the position of the raw material sheet is stable when rolling, and the weld is always facing upward. Subsequently, the rolling machine 3 rolls the raw material sheet into a tube, and the round tube passes through the beveling device 5, and the cutting blade 503 performs a cutting operation on its seam to improve the welding environment. After the cutting, the round tube enters the upper soldering mechanism 4, and the solder is added to the seam of the round tube through the channel formed by the discharge shaft 402 and the clamping ring 4021. The pressure shaft 403 limits the solder. Finally, the mechanical arm 601 of the welding mechanism 6 and the laser welding head 602 perform laser welding on the seam of the round tube to complete the entire processing process. It should be noted in this process that in order to improve the guidance of the solder, after the solder is placed on the weld, the end point of the solder is electric welded to fix the solder position and facilitate the subsequent traction of the solder.

[0028] Although embodiments of the present invention 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 invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A plastic-reinforced tube curling welding device, characterized in that: include: A machine case (1), a material feeding mechanism (2), a rolling machine (3), a soldering mechanism (4), a groove opening device (5) and a welding mechanism (6); The feeding mechanism (2), the rolling machine (3), the groove opening device (5), the soldering mechanism (4) and the welding mechanism (6) are sequentially installed on the chassis (1) along the traveling direction of the plastic-reinforced tube; The feeding mechanism (2) comprises a box cover (201) mounted on the chassis (1), a hinge block (206) being fixed on the top of the box cover (201), a support rod (207) being elastically hinged on the bottom of the hinge block (206), and when the raw material sheet passes through the lying shaft (209), the end of the support rod (207) is against the top surface of the raw material sheet; The cutting device comprises a cutting blade (503), and the cutting blade (503) is directly opposite to the seam of the circular tube. When the circular tube passes through the cutting blade (503), the cutting blade (503) cuts the rolled circular tube. The cut surface at the edge of the cutting blade (503) is in the shape of an inverted cone, and the cutting blade (503) cuts the seam of the circular tube into an inverted cone.

2. The plastic-reinforced pipe curling welding device according to claim 1, characterized in that: The box cover (201) is hollow inside and penetrates the feeding and discharging directions of the raw material sheets. At least two rollers (202) are rotatably mounted between the inner walls on both sides of the box cover (201) near the feeding end of the raw material sheets. The plane formed by the axes of the two rollers (202) is parallel to the horizontal plane. An adjustment handle (205) is screwed on the top of the box cover (201). A top cover (203) is rotatably mounted on the bottom end of the rod body of the adjustment handle (205). The top cover (203) slides between the two sides of the box cover (201). A pressure roller (204) is rotatably mounted on the bottom of the top cover (203). The cooperation between the pressure roller (204) and the roller (202) allows the raw material sheets to pass smoothly through the feeding port (409).

3. The plastic-reinforced pipe curling welding device according to claim 2, characterized in that: The discharge end of the box cover 1 (201) is provided with two side plates (208), the two side plates (208) are mounted on the chassis (1), a lying shaft (209) is rotatably mounted between the two side plates (208), the raw material sheet passes through the roller 1 (202) and then passes through the lying shaft (209), and the axes of the two lying shafts (209) are perpendicular to the axis of the roller 1 (202).

4. The plastic-reinforced pipe curling welding device according to claim 1, characterized in that: The end of the support rod (207) is located on the lying shaft (209), and the support rod (207) can rotate along the connection point with the hinge block (206) toward the roller one (202). The upper soldering mechanism (4) includes a box cover two (401), and the groove opening device (5) is arranged between the box cover one (201) and the box cover two (401).

5. The plastic-reinforced tube curling welding device according to claim 1, characterized in that: A second roller (404) is also rotatably mounted between the inner walls on both sides of the second box cover (401), an adjustment handle (408) is screwed on the top of the second box cover (401), a top cover (406) is also rotatably mounted on the bottom of the rod body of the second adjustment handle (408), and a pressure roller (407) is also rotatably mounted on the bottom of the second top cover (406).

6. A plastic-reinforced pipe curling welding device according to claim 5, characterized in that: The second box cover (401) is provided with a slide groove, and the beveling device (5) further comprises a positioning plate (502), one end of the positioning plate (502) passes through the slide groove and is fixed to the second top cover (406), and the other end of the fixing plate (501) is fixed with a mounting frame (504), and the mounting frame (504) is used to install a blade cover of the cutting blade (503), and the cutting blade (503) is rotated on the blade cover, and a second driving source (505) for driving the cutting blade (503) is installed on the mounting frame (504).

7. The plastic-reinforced tube curling welding device according to claim 6, characterized in that: A fixing plate (501) is fixed on the chassis (1), and a vertically arranged limiting groove (5011) is provided on the fixing plate (501). Screws (506) are slidably installed in the limiting groove (5011), and the screws (506) are used to fasten the mounting frame (504).

8. The plastic-reinforced tube curling welding device according to claim 6, characterized in that: Two discharge shafts (402) are rotatably mounted between the inner walls on both sides of the second box cover (401). The discharge shafts (402) are located directly above the path of travel of the circular tube. The axes of the two discharge shafts (402) are parallel to the axis of the second roller (404). Clamp rings (4021) are fixed to the surfaces of the two discharge shafts (402). A concave ring is arranged at the clamp ring (4021). The concave rings at the closest positions of the two clamp rings (4021) form a channel.

9. The plastic-reinforced tube curling welding device according to claim 8, characterized in that: The clamping ring (4021) is made of rubber. The passage opening formed between the clamping rings (4021) is slightly smaller than the diameter of the solder. The top of the second box cover (401) is provided with an inlet (409). The inlet (409) is directly opposite to the passage opening formed by the clamping ring (4021), so as to facilitate the solder transportation. A pressing shaft (403) is also provided at the outlet end of the second box cover (401). The pressing shaft (403) is rotatably installed between the inner walls on both sides of the second box cover (401), and the pressing shaft (403) just rolls on the formed rolled round tube.

10. The plastic-reinforced tube curling welding device according to claim 1, characterized in that: The welding mechanism (6) comprises a mechanical arm (601), a laser welding head (602) is arranged at the end of the mechanical arm (601), and the laser welding head (602) is arranged obliquely along the traveling direction of the raw material sheet.

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