Heating and pressurizing composite platform for wide polyethylene sheet steel wire composite pipeline production line

Abstract

According to the heating and pressurizing composite platform for the wide polyethylene sheet steel wire composite pipeline production line, a floating plate capable of swinging is installed on a platform frame in a hinged mode, a main pressing wheel is arranged on the floating plate, and pressure balance adjusting mechanisms are installed between the two sides of the floating plate and the platform frame. A sheet and a steel wire are extruded and welded to the periphery of a pipe through a main pressing wheel through a pressure balance adjusting mechanism, the main pressing wheel on a floating plate can be elastically adjusted according to the shape of the pipe, it is ensured that the sheet with the wide amplitude is tightly attached and welded to the periphery of the pipe, gaps are avoided, meanwhile, the number of welding and winding turns of the sheet is reduced, and the welding efficiency is improved. And a small number of welding seams are reserved, so that the forming quality of the pipe can be improved while the welding forming efficiency of the pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipeline processing equipment, in particular to a heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipeline production line. Background Art

[0002] At present, the production of composite pipes is mostly done by spirally winding coils on the inner mold and welding at the joints to form a closed pipe body first and then welding the sheets from the outer periphery to obtain a composite pipe with internal coils and multi-layer sheets. When welding the sheets in the existing production line, it is restricted by various technical conditions. Currently, narrow sheets are squeezed and welded on the outer periphery of the formed inner pipe by pressure wheels. The inner surface of the pipe will be densely covered with a large number of uneven and low-strength joints. The spiral winding welding of the narrower sheets has more circles, and more welds will be left on the composite pipe, which not only reduces the production efficiency of the pipe, but also creates strength risks due to too many welds. Summary of the invention

[0003] The purpose of the utility model is to provide a heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line, in which a main pressure wheel capable of horizontal floating is installed through a pressure balance adjustment mechanism, and the main pressure wheel can closely fit and weld a wide sheet to the outer periphery of the pipe, thereby solving the problems in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line, including a platform frame, a swingable floating plate is hingedly installed on the platform frame, a rotatable main pressure wheel is installed on the floating plate, pressure balance adjustment mechanisms are installed between both sides of the floating plate and the platform frame, each pressure balance adjustment mechanism includes a limit plate arranged on the platform frame, a sleeve corresponding to the limit plate is arranged on the floating plate, a spring is installed between the corresponding limit plate and the sleeve, the spring always has a tendency to keep the sleeve away from the limit plate, the pressure balance adjustment mechanism is located at both ends of the length direction of the main pressure wheel, and can maintain the elastic pressure balance at both ends of the length direction of the main pressure wheel. The platform frame is provided with an adjustment seat capable of longitudinal movement, an adjustment plate capable of transverse movement is provided on the adjustment seat, the floating plate is provided on the adjustment plate, and a pressure balance adjustment mechanism is provided between the adjustment plate and the floating plate, wherein a longitudinal guide plate is provided on the platform frame, a longitudinal guide plate is provided with a longitudinal groove, a longitudinal block corresponding to the longitudinal groove is provided on the adjustment seat, a locking bolt matching the longitudinal groove is provided on the longitudinal block, a transverse slide rail is provided on the adjustment seat, a transverse sliding block matching the transverse sliding rail is provided at the bottom of the adjustment plate, a screw sleeve is provided at the end of the adjustment seat away from the main pressure wheel, a transverse screw is provided in the screw sleeve, a handle is provided at the end of the transverse screw extending out of the screw sleeve, corresponding to the end of the transverse screw extending into the adjustment seat, a transverse push plate is provided at the bottom of the adjustment plate, and the adjustment plate can be moved transversely relative to the adjustment seat by turning the handle. The platform frame is equipped with several groups of vertical poles arranged side by side, each vertical pole is equipped with a locking block that can be lifted vertically, and a sheet support shaft, a heating tube and a steel wire grate are installed between the locking blocks of the corresponding vertical poles, wherein the steel wire grate is located at the upper part, and the heating tube is located between the sheet support shaft and the steel wire grate. The wide sheet wound on the periphery can be wound between the main pressing wheel and the pipe through the sheet support shaft, and the steel wire can enter the upper position of the wide sheet on the periphery of the main pressing wheel through the combing of the steel wire grate. The heating tube can heat the upper surface of the wide sheet and the steel wire, so that the steel wire and the sheet are pre-bonded. The periphery of the main pressing wheel is provided with a spiral groove, and the spiral angle of the spiral groove is consistent with the spiral angle of the pipe compound. A bearing seat is installed on the floating plate, and both ends of the rotating shaft of the main pressure wheel are installed in the bearing seat. A driven sprocket is installed at one end of the rotating shaft passing through the bearing seat. A driving motor is installed on the platform frame, and a driving sprocket is installed on the output shaft of the driving motor. A chain is installed between the driving sprocket and the driven sprocket.

[0005] The positive effect of the utility model is that the utility model describes a heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line, a swingable floating plate is hingedly installed on the platform frame, a main pressure wheel is arranged on the floating plate, and a pressure balance adjustment mechanism is installed between both sides of the floating plate and the platform frame. The main pressure wheel extrude and welds the sheet and the steel wire to the outer periphery of the pipe through the pressure balance adjustment mechanism, and the main pressure wheel on the floating plate can be elastically adjusted according to the shape of the pipe to ensure that the wider sheet is tightly welded to the outer periphery of the pipe to avoid the generation of gaps, while reducing the number of turns of sheet welding and retaining a smaller number of welds, thereby improving the welding and forming efficiency of the pipe and improving the forming quality of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0007] Figure 2 It is the front view of the utility model;

[0008] Figure 3 yes Figure 2 Right view of;

[0009] Figure 4 yes Figure 2 A top view of

[0010] Figure 5 yes Figure 2 Rear view of

[0011] Figure 6 yes Figure 4 A partial enlarged view of middle I;

[0012] Figure 7 yes Figure 4 The enlarged view of the AA section view is rotated 90 degrees clockwise;

[0013] Figure 8 It is a schematic diagram of the use state of the utility model for extruding wide sheets and steel wires onto pipes. DETAILED DESCRIPTION

[0014] The utility model discloses a heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line, such as Figure 1-5 As shown, it includes a platform frame 1, which serves as a structure and installation basis. A swingable floating plate 2 is hingedly installed on the platform frame 1, and a rotatable main pressure wheel 3 is installed on the floating plate 2. The floating plate 2 is located on the side close to the internal formed pipe. The main pressure wheel 3 can squeeze wider sheets and steel wires to the outer periphery of the pipe for a tight fitting welding connection.

[0015] In order to achieve follow-up adjustment of the main pressure wheel 3 following the internal formed pipe and ensure that the wide sheet is tightly squeezed to the outer periphery of the pipe, a pressure balance adjustment mechanism is installed between the two sides of the floating plate 2 and the platform frame 1. The pressure balance adjustment mechanism can not only press the main pressure wheel 3 to the outer periphery of the formed pipe, but also perform adaptive elastic floating adjustment according to the outer peripheral shape of the pipe.

[0016] Each pressure balance adjustment mechanism includes a limit plate 4 arranged on the platform frame 1, a sleeve 5 corresponding to the limit plate 4 is arranged on the floating plate 2, and a spring 6 is installed between the corresponding limit plate 4 and the sleeve 5. The spring 6 always has a tendency to keep the sleeve 5 away from the limit plate 4, that is, under the elastic force of the spring 6, the main pressure wheel 3 is always pressed against the outer periphery of the formed pipe. If the outer diameter of the formed pipe changes, the spring 6 can be adaptively adjusted to ensure that under the extrusion of the main pressure wheel 3, the wider sheet can be tightly welded with the spirally fed pipe to avoid the generation of internal gaps and obtain a composite pipe with higher strength. The pressure balance adjustment mechanism is located at both ends of the main pressure wheel 3 in the length direction, and can maintain the elastic pressure balance at both ends of the main pressure wheel 3 in the length direction.

[0017] Furthermore, in order to adjust the repair welding position of the sheet on the pipe and adjust the space size reserved between the main pressure wheel 3 and the formed pipe for sheets of different thicknesses, the platform frame 1 is provided with an adjustment seat 7 that can move longitudinally, an adjustment plate 8 that can move transversely is installed on the adjustment seat 7, the floating plate 2 is installed on the adjustment plate 8, and the pressure balance adjustment mechanism is installed between the adjustment plate 8 and the floating plate 2. The adjustment seat 7 can drive the main pressure wheel 3 to move longitudinally on the platform frame 1, and the adjustment plate 8 can drive the main pressure wheel 3 to move transversely on the platform frame 1.

[0018] like Figure 6 As shown, a longitudinal guide plate 9 is installed on the platform frame 1, and a longitudinal groove 10 is opened on the longitudinal guide plate 9. A longitudinal block 11 corresponding to the longitudinal groove 10 is installed on the adjustment seat 7, and a locking bolt 12 matching the longitudinal groove 10 is installed on the longitudinal block 11. By rotating the nut of the locking bolt 12, the longitudinal block 11 can be positioned on the longitudinal guide plate 9, thereby realizing the positioning installation. If the adjustment seat 7 is to be adjusted longitudinally, after loosening the nut, the locking bolt 12 can drive the longitudinal block 11 to move in the longitudinal groove 10. After adjustment into place, tighten the nut to achieve fixation.

[0019] The adjustment seat 7 is provided with a transverse slide rail 13, and the bottom of the adjustment plate 8 is provided with a transverse slider 14 matched with the transverse slide rail 13. In order to realize the transverse limit of the adjustment plate 8 on the adjustment seat 7, a screw sleeve 15 is installed at the end of the adjustment seat 7 away from the main pressure wheel 3, and a transverse screw rod 16 is installed in the screw sleeve 15. A handle 17 is installed at the end of the transverse screw rod 16 extending out of the screw sleeve 15. Figure 7As shown, corresponding to the end of the transverse screw 16 extending into the adjustment seat 7, a transverse push plate 18 is provided at the bottom of the adjustment plate 8, and rotating the handle 17 can allow the adjustment plate 8 to move laterally relative to the adjustment seat 7.

[0020] When the distance between the main pressure wheel 3 and the formed pipe needs to be adjusted, the handle 17 is turned, and the transverse screw 16 is telescopically moved relative to the screw sleeve 15, which can push the transverse push plate 18 and the adjustment plate 8 to move closer to the formed pipe, and also leave enough space between the transverse screw 16 and the transverse push plate 18 to allow the adjustment plate 8 to move away from the formed pipe.

[0021] Furthermore, in order to guide and support the sheet and the steel wire on the composite platform, the platform frame 1 is provided with a plurality of sets of vertical poles 19 arranged side by side, each vertical pole 19 is provided with a locking block 20 capable of vertical lifting and lowering, and the locking block 20 can be locked or unlocked on the vertical pole 19 by rotating the bolt. A sheet support shaft 21, a heating tube 22 and a steel wire grate 23 are installed between the locking blocks 20 of the corresponding vertical poles 19, wherein the steel wire grate 23 is located at the upper part, and the heating tube 22 is located between the sheet support shaft 21 and the steel wire grate 23. The wide sheet wound on the periphery can be wound between the main pressing wheel 3 and the pipe through the sheet support shaft 21, and the steel wire can enter the upper position of the wide sheet on the periphery of the main pressing wheel 3 through the combing of the steel wire grate 23. The heating tube 22 can heat the upper surface of the wide sheet and the steel wire to pre-bond the steel wire and the sheet.

[0022] The sheet support shaft 21 supports the sheet to be wound, and the wire grate 23 combs and supports a plurality of steel wires to be welded. Both the sheet and the steel wires are passed around the main pressing wheel 3, and the main pressing wheel 3 presses and welds the sheet and the steel wires to the outer periphery of the pipe.

[0023] Furthermore, the outer circumference of the main pressing wheel 3 is provided with a spiral groove 24, the spiral angle of the spiral groove 24 is consistent with the spiral angle of the pipe compound, and the pipe can be driven to rotate and transport while squeezing the sheet. The spiral groove 24 has the following functions: driving the pipe to rotate, hot press, and longitudinally push the sheet, so that the sheet is spirally wound on the pipe.

[0024] Furthermore, in order to realize the rotation of the main pressure wheel 3 itself, a bearing seat 25 is installed on the floating plate 2, and both ends of the rotating shaft of the main pressure wheel 3 are installed in the bearing seat 25, and a driven sprocket 26 is installed at one end of the rotating shaft passing through the bearing seat 25. A driving motor 27 is installed on the platform frame 1, and a driving sprocket 28 is installed on the output shaft of the driving motor 27. A chain 29 is installed between the driving sprocket 28 and the driven sprocket 26. When the driving motor 27 is started, it can drive the main pressure wheel 3 to rotate.

[0025] The composite platform can also be equipped with a heating device to heat the inner surface of the sheet and the outer peripheral surface of the formed pipe to achieve heat welding between the sheet, steel wire and the formed pipe. The wide sheet hot pressing composite platform can extrude and weld the wide sheet and steel wire on the outer periphery of the pipe according to the spiral line direction of the pipe to form a multi-layer spiral winding pipe covered in sequence.

[0026] In the process of welding the sheet and the steel wire to the outer periphery of the forming pipe on the composite platform, the surface of the sheet needs to be heated quickly first to prevent the thin-walled wide sheet from being overheated, deformed and over-shrinked as a whole. The heating tube 22 should be strongly heated at the position where the sheet is about to enter the main pressing wheel 3200mm, and then heated at high temperature with a high-power hot air gun at the position where it finally enters the main pressing wheel 3. In this way, only about 1mm of the plastic on the surface of the 4-8mm thick sheet is fully melted. Since the sheet is very wide and the contact area with the main pressing wheel 3 is large, a large friction force will be generated to block the longitudinal movement of the sheet. Therefore, the surface of the main pressing wheel 3 should be processed with a spiral groove 24 with the same spiral angle as the pipe rotation, and the spiral groove 24 is used to promote the longitudinal movement of the sheet. The setting of the pressure balance adjustment mechanism can adjust the balance of pressure on the left and right sides of the sheet width line and overcome the resistance change caused by the change in the volume of the melt at the composite entrance of the sheet.

[0027] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line, characterized in that: The invention comprises a platform frame (1), a floating plate (2) capable of swinging is hingedly mounted on the platform frame (1), a main pressure wheel (3) capable of rotating is mounted on the floating plate (2), pressure balance adjustment mechanisms are mounted between both sides of the floating plate (2) and the platform frame (1), each pressure balance adjustment mechanism comprises a limit plate (4) arranged on the platform frame (1), a sleeve (5) corresponding to the limit plate (4) is mounted on the floating plate (2), springs (6) are mounted between the corresponding limit plates (4) and the sleeves (5), the springs (6) always have a tendency to keep the sleeves (5) away from the limit plates (4), and the pressure balance adjustment mechanisms are located at both ends of the main pressure wheel (3) in the length direction, and can maintain elastic pressure balance at both ends of the main pressure wheel (3) in the length direction.

2. The heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line according to claim 1, characterized in that: The platform frame (1) is provided with an adjustment seat (7) capable of longitudinal movement, an adjustment plate (8) capable of transverse movement is installed on the adjustment seat (7), a floating plate (2) is installed on the adjustment plate (8), a pressure balance adjustment mechanism is installed between the adjustment plate (8) and the floating plate (2), wherein a longitudinal movement guide plate (9) is installed on the platform frame (1), a longitudinal movement guide plate (9) is provided with a longitudinal movement groove (10), a longitudinal movement block (11) corresponding to the longitudinal movement groove (10) is installed on the adjustment seat (7), a locking bolt (12) matching the longitudinal movement groove (10) is installed on the longitudinal movement block (11), and the adjustment A transverse sliding rail (13) is installed on the seat (7), and a transverse sliding block (14) matching with the transverse sliding rail (13) is provided at the bottom of the adjustment plate (8). A screw sleeve (15) is installed at the end of the adjustment seat (7) away from the main pressure wheel (3), and a transverse screw rod (16) is installed in the screw sleeve (15). A handle (17) is installed at the end of the transverse screw rod (16) extending out of the screw sleeve (15). Corresponding to the end of the transverse screw rod (16) extending into the adjustment seat (7), a transverse pushing plate (18) is provided at the bottom of the adjustment plate (8). Turning the handle (17) can make the adjustment plate (8) move laterally relative to the adjustment seat (7).

3. The heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line according to claim 1, characterized in that: The platform frame (1) is provided with a plurality of groups of vertical poles (19) arranged side by side, each vertical pole (19) is provided with a locking block (20) capable of being lifted and lowered vertically, and a sheet support shaft (21), a heating tube (22) and a steel wire grate (23) are provided between the locking blocks (20) of the corresponding vertical poles (19), wherein the steel wire grate (23) is located at the upper part, and the heating tube (22) is located between the sheet support shaft (21) and the steel wire grate (23), and the wide sheet wound around the periphery can be wound around the main pressing wheel (3) and the tube through the sheet support shaft (21), and the steel wire can enter the upper part of the wide sheet around the main pressing wheel (3) through the combing of the steel wire grate (23), and the heating tube (22) can heat the upper surface of the wide sheet and the steel wire, so that the steel wire and the sheet are pre-bonded.

4. The heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line according to claim 1, characterized in that: The outer circumference of the main pressure wheel (3) is provided with a spiral groove (24), and the spiral angle of the spiral groove (24) is consistent with the composite spiral angle of the pipeline.

5. The heating and pressurizing composite platform for a wide polyethylene sheet steel wire composite pipe production line according to claim 1, characterized in that: A bearing seat (25) is installed on the floating plate (2), both ends of the rotating shaft of the main pressure wheel (3) are mounted in the bearing seat (25), one end of the rotating shaft passing through the bearing seat (25) is mounted with a driven sprocket (26), a driving motor (27) is installed on the platform frame (1), a driving sprocket (28) is installed on the output shaft of the driving motor (27), and a chain (29) is mounted between the driving sprocket (28) and the driven sprocket (26).

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