Aluminum-plastic composite pipe forming mechanism and composite pipe manufacturing method

Abstract

The invention provides an aluminum-plastic composite pipe forming mechanism and a composite pipe manufacturing method. The aluminum-plastic composite pipe forming mechanism and the composite pipe manufacturing method comprise a base assembly, an outer plastic coating mechanism, a support, a top slide way, an ultrasonic welding mechanism, a plurality of sliding driving mechanisms, a plurality of pressing wheel mechanisms with the sizes from large to small and a horizontal forming mechanism. The support is arranged on the top of the base assembly, and the top sliding way is transversely arranged on the support. According to the aluminum-plastic composite pipe forming mechanism and the composite pipe manufacturing method, the base assembly, the outer plastic coating mechanism, the multiple sliding driving mechanisms, the multiple pressing wheel mechanisms with the sizes from large to small and the horizontal forming mechanism which are arranged are matched with one another. The horizontal forming mechanism and the pressing wheel mechanism are combined with each other, then the horizontal forming mechanism and the pressing wheel mechanism are sequentially rolled to one side of the workbench through the arranged sliding rod, and personnel can automatically collect the materials without moving.

Description

Technical Field

[0001] This invention relates to the field of aluminum-plastic composite pipe manufacturing equipment design, specifically to an aluminum-plastic composite pipe forming mechanism and a composite pipe manufacturing method. Background Technology

[0002] The processing of aluminum-plastic composite pipes requires the forming of aluminum tubes and plastic inner tubes. First, aluminum strips are processed into aluminum tubes, and then the aluminum tubes are sleeved onto the plastic inner tubes through a sleeve process to form aluminum-plastic composite pipes. However, this production process is slow and has low production efficiency.

[0003] For example, a Chinese patent discloses "An Aluminum Tube Forming Mechanism" (patent number: CN202510439973.3). This patent includes several pairs of horizontal forming wheels, each pair of horizontal forming wheels including an upper forming wheel and a lower forming wheel; a forming gap is provided between the upper forming wheel and the lower forming wheel; an inner cavity is provided on the upper forming wheel, the inner cavity is for a plastic inner tube to pass through, and the inner cavity is connected to the forming gap; the aluminum strip carries the plastic inner tube during the process of gradually bending and deforming upwards; the beneficial effect of this invention is that the aluminum strip passes through the horizontal forming module and the vertical forming module in sequence, and is gradually formed into an aluminum tube; the inner cavity is provided, the plastic inner tube can be passed through the inner cavity, and is transported by the friction between the upper forming wheel, the aluminum strip and the plastic inner tube; during the process of the aluminum strip gradually forming into an aluminum tube, the aluminum strip will gradually cover the plastic inner tube, thereby making the aluminum strip and the plastic inner tube cooperate to form an aluminum-plastic composite tube, which improves production efficiency.

[0004] However, while the aforementioned patent can achieve the goal of automatically manufacturing aluminum-plastic pipes, when disassembling and transporting the various horizontal and vertical forming modules, personnel can only disassemble and transport them one by one. Since the span between the various horizontal and vertical forming modules on the aluminum-plastic pipe production line is quite large, a portion of the personnel's time is wasted walking, which greatly affects the efficiency of the personnel. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an aluminum-plastic composite pipe forming mechanism and a composite pipe manufacturing method.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an aluminum-plastic composite pipe forming mechanism and a composite pipe manufacturing method, comprising a base assembly, an outer plastic coating mechanism, a support, a top slide rail, an ultrasonic welding mechanism, multiple sliding drive mechanisms, multiple pressure roller mechanisms of decreasing size, and a horizontal forming mechanism. The support is disposed on top of the base assembly, and the top slide rail is horizontally disposed on the support. The outer plastic coating mechanism, the ultrasonic welding mechanism, and the multiple horizontal forming mechanisms are sequentially disposed on the base assembly from left to right. The multiple sliding drive mechanisms are slidably engaged on the top slide rail, and the multiple pressure roller mechanisms correspond one-to-one with the multiple horizontal forming mechanisms. The pressure roller mechanisms are linked to the sliding drive mechanisms, and the shaft ends of the pressure roller mechanisms are linked to the shaft centers of the sliding drive mechanisms. Aluminum strips are disposed on the multiple horizontal forming mechanisms.

[0009] Preferably, the base assembly includes a base, a worktable, two slide rods, four main electric telescopic rods, and a universal joint. The worktable is located on top of the base, and a bottom cavity is provided between the worktable and the base. Two slots are symmetrically formed on the worktable. The four main electric telescopic rods are symmetrically arranged in pairs within the slots, and the universal joint is located on the movable end of each main electric telescopic rod. The slide rods are located within the slots and are connected to the universal joints.

[0010] Preferably, the sliding drive mechanism includes a first drive slider, a drive shaft seat, two connecting rods, and drive gears. The first drive slider is slidably fitted at the bottom of the top slide rail, and the drive shaft seat is located at the bottom of the first drive slider. The two drive gears are respectively located on the movable ends of the drive shaft seat, and the drive gears are located on the bottom ends of the connecting rods. The drive gears mesh with the pressure roller mechanism.

[0011] Preferably, the pressure roller mechanism includes a pressure roller, two drive telescopic rods, and an electromagnet connecting seat. The two drive telescopic rods are symmetrically arranged on both sides of the pressure roller's axis, and the pressure roller has a slot. The drive gear is located within the slot, and the electromagnet connecting seat is located on the movable end of the drive telescopic rod.

[0012] Preferably, the pressure roller mechanism further includes an internal drive mechanism, multiple small electric telescopic rods, and movable locking blocks. The internal drive mechanism is located inside the pressure roller, and the multiple small electric telescopic rods are arranged at equal angles around the center of the slot on the internal drive mechanism. The movable locking blocks are located on the movable ends of the small electric telescopic rods, and the multiple movable locking blocks mesh with drive gears. An inner sleeve is provided between the internal drive mechanism and the aluminum strip.

[0013] Preferably, the pressure roller mechanism further includes a steel wire and a drive take-up wheel. The drive take-up wheel is disposed inside the drive telescopic rod. One end of the steel wire is wound around the drive take-up wheel, and the other end passes through the electromagnet connecting seat and is linked to the horizontal forming mechanism.

[0014] Preferably, the worktable has multiple sliding grooves on both sides. The sliding grooves communicate with the slotting mechanism. The horizontal forming mechanism includes a second driving slider, a first driving motor, and a driving hinge seat. The second driving slider is slidably fitted onto the sliding groove, and the first driving motor is mounted on the second driving slider. The driving hinge seat is located at the output end of the first driving motor.

[0015] Preferably, the horizontal forming mechanism further includes a limiting roller, an iron base, and four electric telescopic plugs. The limiting roller has a flared opening at its narrow top end, and the iron base is disposed within the flared opening. The bottom of the limiting roller has an electromagnet and multiple insertion holes, and the four electric telescopic plugs are disposed on the output end of the drive motor. The limiting roller is detachably snapped into the electromagnet, and the insertion holes correspond to the electric telescopic plugs. The iron base is magnetically connected to the electromagnet connecting seat, and the end of the steel wire located outside the electromagnet connecting seat is connected to the center of the iron base.

[0016] Preferably, a composite pipe manufacturing method using an aluminum-plastic composite pipe forming mechanism includes the following steps:

[0017] Step 1: First, choose between double-layer aluminum-plastic pipe or single-layer aluminum-plastic pipe according to personnel needs.

[0018] Step 2: When selecting a single-layer aluminum-plastic pipe, feed the aluminum strip sequentially into multiple sets of horizontal forming mechanisms. Simultaneously, control the corresponding pressure roller mechanism to move downwards, forcing the aluminum strip into contact with the rotating surface of the horizontal forming mechanism.

[0019] Step 3: Insert the two drive gears into the slots on the pressure roller by controlling the drive shaft seat. At the same time, the drive gears engage with the movable locking block pushed out by the small electric telescopic rod, and then the drive gears rotate, driving the pressure roller to rotate.

[0020] Step 4: As the pressure rollers push the aluminum strip along the production line, the bending amplitude between the multiple sets of horizontal forming mechanisms increases, at which point the aluminum strip deforms from a strip shape into a cylindrical shape.

[0021] Step 5: Next, move it to the ultrasonic welding mechanism to weld the gaps on the bent aluminum strip.

[0022] Step Six: Next, the welded aluminum tube is sent to the outer plastic coating mechanism, which applies thermoplastic coating to the outer surface of the aluminum tube to complete the manufacturing process of its single-layer aluminum-plastic tube.

[0023] Step 7: When selecting double-layer aluminum-plastic tube, retract the small electric telescopic rod to allow the movable block to retract into the inner drive mechanism, at which point a space is formed between the inner drive mechanism and the pressure roller.

[0024] Step 8: Next, by increasing the control of the drive shaft seat, the two drive gears tightly clamp the inner drive mechanism. At the same time, as the drive gears rotate, the pressure roller is forced to rotate. Then, the aluminum belt is moved by the rotation of the limit roller and the pressure roller.

[0025] Step 9: Next, let the inner sleeve coated with glue pass through the groove and deform with the aluminum strip to wrap the inner sleeve. Repeat the above operation to complete the manufacturing process of the double-layer aluminum-plastic pipe.

[0026] (III) Beneficial Effects

[0027] This invention provides an aluminum-plastic composite pipe forming mechanism and a method for manufacturing composite pipes. It has the following beneficial effects:

[0028] 1. The aluminum-plastic composite pipe forming mechanism and manufacturing method utilize a base assembly, an outer plastic coating mechanism, multiple sliding drive mechanisms, multiple pressure roller mechanisms of varying sizes, and a horizontal forming mechanism working together. This allows the invention to combine the horizontal forming mechanism and the pressure roller mechanism, and then use a sliding rod to roll the pipe sequentially to one side of the worktable, enabling manual collection without personnel intervention. Attached Figure Description

[0029] Figure 1 This is a first perspective view of the present invention;

[0030] Figure 2 This is a second perspective view of the present invention;

[0031] Figure 3 This is a third perspective view of the present invention;

[0032] Figure 4 This is the fourth perspective view of the present invention;

[0033] Figure 5 This is the fifth perspective view of the present invention;

[0034] Figure 6 This is a perspective view of a first partial component of the present invention;

[0035] Figure 7 This is a perspective view of a second partial component of the present invention;

[0036] Figure 8 This is a perspective view of a third partial component of the present invention;

[0037] Figure 9 This is a perspective view of the fourth partial component of the present invention.

[0038] In the diagram: 1. Base, 2. Outer plastic coating mechanism, 3. Ultrasonic welding mechanism, 4. Top slide, 5. Bracket, 6. Sliding drive mechanism, 7. Pressure roller mechanism, 8. Base assembly, 9. Workbench, 10. Aluminum strip, 11. Main electric telescopic rod, 12. Bottom cavity, 13. Drive take-up wheel, 14. Slide rod, 15. Drive motor one, 16. Electric telescopic plug, 17. Drive hinge seat, 18. Slot, 19. Electromagnet one, 20. Limiting roller, 21. Insertion hole, 22. Horizontal forming mechanism, 23. Universal seat, 24. Steel wire, 25. Drive gear, 26. Drive shaft seat, 27. Connecting rod, 28. Slide groove, 29. Pressure roller, 30. Drive telescopic rod, 31. Drive slider one, 32. Drive slider two, 33. Trumpet mouth, 34. Iron seat, 35. Slot, 36. Electromagnet connecting seat, 37. Internal drive mechanism, 38. Small electric telescopic rod, 39. Inner sleeve, 40. Movable locking block. Detailed Implementation

[0039] This invention provides an aluminum-plastic composite pipe forming mechanism and a composite pipe manufacturing method, such as... Figure 1-9 As shown, the assembly includes a base assembly 8, an outer plastic coating mechanism 2, a support 5, a top slide rail 4, an ultrasonic welding mechanism 3, multiple sliding drive mechanisms 6, multiple pressure roller mechanisms 7 of decreasing size, and a horizontal forming mechanism 22. The support 5 is positioned on top of the base assembly 8, and the top slide rail 4 is horizontally positioned on the support 5. The outer plastic coating mechanism 2, the ultrasonic welding mechanism 3, and the multiple horizontal forming mechanisms 22 are arranged sequentially on the base assembly 8 from left to right. The multiple sliding drive mechanisms 6 are slidably engaged with the top slide rail 4, and the multiple pressure roller mechanisms 7 correspond one-to-one with the multiple horizontal forming mechanisms 22. The pressure roller mechanisms 7 are linked to the sliding drive mechanisms 6, and the shaft ends of the pressure roller mechanisms 7 are linked to the shaft centers of the sliding drive mechanisms 6. Aluminum strips 10 are provided on the multiple horizontal forming mechanisms 22.

[0040] The method by which the pressure roller mechanism 7 and the horizontal forming mechanism 22 press the aluminum strip 10 into an aluminum tube is existing technology. For example, the Chinese patent "An Aluminum Tube Forming Mechanism" (patent number: CN202510439973.3) has already provided a detailed description.

[0041] The base assembly 8 includes a base 1, a worktable 9, two slide rods 14, four main electric telescopic rods 11, and a universal joint 23. The worktable 9 is positioned on top of the base 1, and a bottom cavity 12 is provided between the worktable 9 and the base 1. Two slots 18 are symmetrically formed on the worktable 9. The four main electric telescopic rods 11 are symmetrically arranged in pairs within the slots 18, and the universal joint 23 is positioned on the movable end of each main electric telescopic rod 11. The slide rods 14 are positioned within the slots 18 and are connected to the universal joint 23.

[0042] The sliding drive mechanism 6 includes a drive slider 31, a drive shaft seat 26, two connecting rods 27, and a drive gear 25. The drive slider 31 is slidably fitted onto the bottom of the top slide rail 4, and the drive shaft seat 26 is located at the bottom of the drive slider 31. The two drive gears 25 are respectively located on the movable end of the drive shaft seat 26 and on the bottom end of the connecting rods 27. The drive gears 25 mesh with the pressure roller mechanism 7.

[0043] The pressure roller mechanism 7 includes a pressure roller 29, two drive telescopic rods 30, and an electromagnet connecting seat 36. The two drive telescopic rods 30 are symmetrically arranged on both sides of the axis of the pressure roller 29, and the pressure roller 29 has a slot 35. The drive gear 25 is located in the slot 35, and the electromagnet connecting seat 36 is arranged on the movable end of the drive telescopic rod 30.

[0044] The pressure roller mechanism 7 also includes an internal drive mechanism 37, multiple small electric telescopic rods 38, and movable locking blocks 40. The internal drive mechanism 37 is located inside the pressure roller 29, and the multiple small electric telescopic rods 38 are arranged at equal angles around the center of the slot 35 on the internal drive mechanism 37. The movable locking blocks 40 are located on the movable ends of the small electric telescopic rods 38, and the multiple movable locking blocks 40 mesh with the drive gear 25. An inner sleeve 39 is provided between the internal drive mechanism 37 and the aluminum strip 10.

[0045] The pressure roller mechanism 7 also includes a steel wire 24 and a drive take-up reel 13. The drive take-up reel 13 is disposed inside the drive telescopic rod 30. One end of the steel wire 24 is wound around the drive take-up reel 13, and the other end passes through the electromagnet connecting seat 36 and is linked to the horizontal forming mechanism 22.

[0046] Multiple sliding grooves 28 are provided on both sides of the worktable 9. The sliding grooves 28 communicate with the slots 18. The horizontal forming mechanism 22 includes a second drive slider 32, a first drive motor 15, and a drive hinge seat 17. The second drive slider 32 is slidably fitted on the sliding groove 28, and the first drive motor 15 is mounted on the second drive slider 32. The drive hinge seat 17 is mounted on the output end of the first drive motor 15.

[0047] The horizontal forming mechanism 22 also includes a limiting roller 20, an iron base 34, and four electric telescopic plugs 16. The limiting roller 20 has a flared opening 33 at its narrow top end, and the iron base 34 is disposed within the flared opening 33. The bottom of the limiting roller 20 has an electromagnet 19 and multiple insertion holes 21, and the four electric telescopic plugs 16 are disposed on the output end of the drive motor 15. The limiting roller 20 is detachably snapped into the electromagnet 19, and the insertion holes 21 correspond to the electric telescopic plugs 16. The iron base 34 is magnetically connected to the electromagnet connecting seat 36, and one end of the steel wire 24 located outside the electromagnet connecting seat 36 is connected to the center of the iron base 34.

[0048] A method for manufacturing composite pipes using an aluminum-plastic composite pipe forming mechanism, comprising the following steps:

[0049] Step 1: First, choose between double-layer aluminum-plastic pipe or single-layer aluminum-plastic pipe according to personnel needs.

[0050] Step 2: When selecting a single-layer aluminum-plastic pipe, feed the aluminum strip 10 sequentially into multiple sets of horizontal forming mechanisms 22. Simultaneously, control the corresponding pressure roller mechanism 7 to move downward, forcing the aluminum strip 10 into contact with the rotating surface of the horizontal forming mechanism 22.

[0051] Step 3: By controlling the drive shaft seat 26, insert the two drive gears 25 into the slots 35 on the pressure roller 29. At the same time, the drive gears 25 engage with the movable locking block 40 pushed out by the small electric telescopic rod 38, and then the drive gears 25 rotate, driving the pressure roller 29 to rotate.

[0052] Step 4: As the pressure roller 29 pushes the aluminum strip 10 along the production line, the bending amplitude between the multiple sets of horizontal forming mechanisms 22 increases, at which point the aluminum strip 10 deforms from a strip shape into a cylindrical shape.

[0053] Step 5: Next, move it to the ultrasonic welding mechanism 3 to weld the gaps on the bent aluminum strip 10.

[0054] Step Six: Next, the welded aluminum tube is sent to the outer plastic coating mechanism 2. The outer plastic coating mechanism 2 applies thermoplastic coating to the outer surface of the aluminum tube to complete the manufacturing process of its single-layer aluminum-plastic tube.

[0055] Step 7: When double-layer aluminum-plastic pipe is selected, the movable block 40 is retracted into the inner drive mechanism 37 by retracting the small electric telescopic rod 38. At this time, a space is formed between the inner drive mechanism 37 and the pressure roller 29.

[0056] Step 8: Next, by increasing the size of the drive shaft seat 26, the two drive gears 25 tightly clamp the inner drive mechanism 37. At the same time, as the drive gears 25 rotate, the pressure roller 29 is forced to rotate. Then, the aluminum belt 10 is moved by the rotation of the limit roller 20 and the pressure roller 29.

[0057] Step 9: Next, let the inner sleeve 39, which is coated with glue, pass through the slot 35 and deform with the aluminum strip 10 to wrap the inner sleeve 39. Repeat the above operation to complete the manufacturing process of the double-layer aluminum-plastic pipe.

[0058] Working principle: When personnel need to disassemble and move the production line, first control the small electric telescopic rod 38 to extend, forcing the drive gear 25 to mesh with the movable locking block 40. At this time, the pressure roller 29 is locked by the two drive gears 25. Then, the electric telescopic plug 16 retracts, driving the hinge seat 17 to tilt the limit roller 20 towards the pressure roller 29. Next, drive the hinge seat 17 to disengage from the electromagnet 19 on the limit roller 20, and simultaneously control the drive take-up wheel 13 to take in the wire. Under the pull of the steel wire 24, the electromagnet connecting seat 36 is inserted into the flared mouth 33 and magnetically fixed with the iron seat 34. At this time, the pressure roller 29 and the two limit rollers 20 form an hourglass shape. Then, control the main electric telescopic rod 11 to extend, forcing the slide rod 14 to leave the slot 18. At the same time, control the extension height of each main electric telescopic rod 11 to be different, so that the slide rod 14 tilts and corresponds to the connection between the pressure roller 29 and the limit roller 20. Next, the drive shaft seat 26 is controlled to separate the drive gears 25 on the two connecting rods 27 from the movable block 40. At this time, the pressure roller 29 moves along the slide bar 14 to one side of the worktable 9.

[0059] In summary, the aluminum-plastic composite pipe forming mechanism and manufacturing method utilize the coordinated components of the base assembly 8, the outer plastic coating mechanism 2, multiple sliding drive mechanisms 6, multiple pressure roller mechanisms 7 of decreasing size, and the horizontal forming mechanism 22. This allows the horizontal forming mechanism 22 and the pressure roller mechanisms 7 to be combined, and then the pipe is sequentially rolled to one side of the worktable 9 via a sliding rod 14, enabling manual collection without personnel intervention.

Claims

1. A molding mechanism for aluminum-plastic composite pipes, characterized in that: The system includes a base assembly (8), an outer plastic coating mechanism (2), a bracket (5), a top slide rail (4), an ultrasonic welding mechanism (3), multiple sliding drive mechanisms (6), multiple pressure roller mechanisms (7) of varying sizes (from large to small), and a horizontal forming mechanism (22). The bracket (5) is located on the top of the base assembly (8), and the top slide rail (4) is horizontally positioned on the bracket (5). The outer plastic coating mechanism (2), the ultrasonic welding mechanism (3), and the multiple horizontal forming mechanisms (22) are arranged sequentially from left to right on the base assembly (8). The multiple sliding drive mechanisms (6) are slidably engaged on the top slide rail (4). The multiple pressure roller mechanisms (7) correspond one-to-one with the multiple horizontal forming mechanisms (22). The pressure roller mechanism (7) is linked to the sliding drive mechanism (6), and the shaft end of the pressure roller mechanism (7) is linked to the shaft center of the sliding drive mechanism (6). The multiple horizontal forming mechanisms (22) are provided with aluminum strips (10).

2. The aluminum-plastic composite pipe forming mechanism according to claim 1, characterized in that: The base assembly (8) includes a base (1), a workbench (9), two slide rods (14), four main electric telescopic rods (11), and a universal seat (23). The workbench (9) is located on the top of the base (1). A bottom cavity (12) is provided between the workbench (9) and the base (1). Two slots (18) are symmetrically opened on the workbench (9). The four main electric telescopic rods (11) are symmetrically arranged in pairs in the slots (18). The universal seat (23) is located on the movable end of the main electric telescopic rod (11). The slide rods (14) are located in the slots (18) and are connected to the universal seat (23).

3. The aluminum-plastic composite pipe forming mechanism according to claim 2, characterized in that: The sliding drive mechanism (6) includes a drive slider (31), a drive shaft seat (26), two connecting rods (27) and a drive gear (25). The drive slider (31) is slidably fitted at the bottom of the top slide rail (4). The drive shaft seat (26) is located at the bottom of the drive slider (31). The two drive gears (25) are respectively located on the movable end of the drive shaft seat (26). The drive gear (25) is located on the bottom end of the connecting rod (27). The drive gear (25) meshes with the pressure roller mechanism (7).

4. The aluminum-plastic composite pipe forming mechanism according to claim 3, characterized in that: The pressure roller mechanism (7) includes a pressure roller (29), two drive telescopic rods (30) and an electromagnet connecting seat (36). The two drive telescopic rods (30) are symmetrically arranged on both sides of the axis of the pressure roller (29). The pressure roller (29) has a slot (35) and the drive gear (25) is located in the slot (35). The electromagnet connecting seat (36) is arranged on the movable end of the drive telescopic rod (30).

5. The aluminum-plastic composite pipe forming mechanism according to claim 4, characterized in that: The pressure roller mechanism (7) also includes an inner drive mechanism (37), multiple small electric telescopic rods (38) and movable locking blocks (40). The inner drive mechanism (37) is located inside the pressure roller (29). Multiple small electric telescopic rods (38) are arranged at equal angles around the center of the slot (35) on the inner drive mechanism (37). The movable locking blocks (40) are located on the movable ends of the small electric telescopic rods (38). Multiple movable locking blocks (40) mesh with the drive gear (25). An inner sleeve (39) is provided between the inner drive mechanism (37) and the aluminum strip (10).

6. The aluminum-plastic composite pipe forming mechanism according to claim 5, characterized in that: The pressure roller mechanism (7) also includes a steel wire (24) and a drive take-up wheel (13). The drive take-up wheel (13) is located inside the drive telescopic rod (30). One end of the steel wire (24) is wound around the drive take-up wheel (13), and the other end passes through the electromagnet connecting seat (36) and is linked to the horizontal forming mechanism (22).

7. The aluminum-plastic composite pipe forming mechanism according to claim 6, characterized in that: The workbench (9) has multiple sliding grooves (28) on both sides, which are connected to the slot (18). The horizontal forming mechanism (22) includes a second driving slider (32), a first driving motor (15) and a driving hinge seat (17). The second driving slider (32) is slidably fitted on the sliding groove (28), the first driving motor (15) is mounted on the second driving slider (32), and the driving hinge seat (17) is mounted on the output end of the first driving motor (15).

8. The aluminum-plastic composite pipe forming mechanism according to claim 7, characterized in that: The horizontal forming mechanism (22) also includes a limiting roller (20), an iron base (34) and four electric telescopic plugs (16). The limiting roller (20) has a flared mouth (33) at its narrow top end. The iron base (34) is located inside the flared mouth (33). The limiting roller (20) has an electromagnet (19) and multiple sockets (21) at its bottom. The four electric telescopic plugs (16) are located at the output end of the drive motor (15). The limiting roller (20) and the electromagnet (19) are detachably snapped together. The sockets (21) correspond to the electric telescopic plugs (16). The iron base (34) is magnetically connected to the electromagnet connecting seat (36). The end of the steel wire (24) located outside the electromagnet connecting seat (36) is connected to the center of the iron base (34).

9. A method for manufacturing composite pipes using an aluminum-plastic composite pipe forming mechanism according to any one of claims 1 to 8, characterized in that: It includes the following steps: Step 1: First, choose between double-layer aluminum-plastic pipe or single-layer aluminum-plastic pipe according to personnel needs; Step 2: When selecting a single-layer aluminum-plastic pipe, feed the aluminum strip (10) into multiple sets of horizontal forming mechanisms (22) in sequence, and at the same time control the corresponding pressure roller mechanism (7) to move down, so that the aluminum strip (10) comes into contact with the rotating surface of the horizontal forming mechanism (22); Step 3: By controlling the drive shaft seat (26), insert the two drive gears (25) into the slots (35) on the pressure roller (29). At the same time, the drive gears (25) mesh with the movable locking block (40) pushed out by the small electric telescopic rod (38). Then the drive gears (25) rotate to drive the pressure roller (29) to rotate. Step 4: As the pressure roller (29) pushes the aluminum strip (10) along the production line, the bending amplitude between the multiple sets of horizontal forming mechanisms (22) becomes larger and larger, and the aluminum strip (10) deforms from a strip shape into a round tube shape. Step 5: Next, move it into the ultrasonic welding mechanism (3) to weld the gaps on the bent aluminum strip (10); Step 6: Next, the welded aluminum tube is sent into the outer plastic coating mechanism (2). The outer plastic coating mechanism (2) applies thermoplastic coating to the outer surface of the aluminum tube to complete the manufacturing process of its single-layer aluminum-plastic tube. Step 7: When double-layer aluminum-plastic pipe is selected, the movable block (40) is retracted into the inner drive mechanism (37) by retracting the small electric telescopic rod (38). At this time, a space is formed between the inner drive mechanism (37) and the pressure roller (29). Step 8: Next, by increasing the size of the drive shaft seat (26), the two drive gears (25) tightly clamp the inner drive mechanism (37). At the same time, as the drive gears (25) rotate, the pressure roller (29) is forced to rotate. Then, the aluminum belt (10) is moved by the rotation of the limit roller (20) and the pressure roller (29). Step 9: Next, let the inner sleeve (39) coated with glue pass through the slot (35) and deform with the aluminum strip (10) to wrap the inner sleeve (39). Repeat the above operation to complete the manufacturing process of the double-layer aluminum-plastic pipe.

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